./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_label40+token_ring.13.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19aa3a10df20aa66b298603653689263cc3fd1e3f00b1be832baa1f64aefda99 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 19:14:21,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 19:14:21,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 19:14:21,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 19:14:21,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 19:14:21,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 19:14:21,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 19:14:21,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 19:14:21,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 19:14:21,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 19:14:21,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 19:14:21,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 19:14:21,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 19:14:21,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 19:14:21,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 19:14:21,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 19:14:21,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 19:14:21,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 19:14:21,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 19:14:21,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 19:14:21,821 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 19:14:21,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 19:14:21,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 19:14:21,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 19:14:21,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 19:14:21,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 19:14:21,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 19:14:21,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 19:14:21,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 19:14:21,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 19:14:21,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 19:14:21,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 19:14:21,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 19:14:21,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 19:14:21,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 19:14:21,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 19:14:21,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 19:14:21,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 19:14:21,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 19:14:21,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 19:14:21,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 19:14:21,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 19:14:21,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 19:14:21,871 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 19:14:21,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 19:14:21,873 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 19:14:21,873 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 19:14:21,873 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 19:14:21,874 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 19:14:21,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 19:14:21,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 19:14:21,874 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 19:14:21,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 19:14:21,875 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 19:14:21,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 19:14:21,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 19:14:21,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 19:14:21,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 19:14:21,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 19:14:21,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 19:14:21,876 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 19:14:21,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 19:14:21,878 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 19:14:21,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 19:14:21,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 19:14:21,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 19:14:21,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 19:14:21,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:14:21,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 19:14:21,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 19:14:21,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 19:14:21,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 19:14:21,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 19:14:21,880 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 19:14:21,880 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 19:14:21,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 19:14:21,881 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19aa3a10df20aa66b298603653689263cc3fd1e3f00b1be832baa1f64aefda99 [2022-07-19 19:14:22,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 19:14:22,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 19:14:22,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 19:14:22,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 19:14:22,085 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 19:14:22,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c [2022-07-19 19:14:22,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50552d1f3/bb8beb0804ea4a9a86966443f2f98cb3/FLAGa8e88f393 [2022-07-19 19:14:22,864 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 19:14:22,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c [2022-07-19 19:14:22,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50552d1f3/bb8beb0804ea4a9a86966443f2f98cb3/FLAGa8e88f393 [2022-07-19 19:14:22,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50552d1f3/bb8beb0804ea4a9a86966443f2f98cb3 [2022-07-19 19:14:22,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 19:14:22,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 19:14:22,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 19:14:22,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 19:14:22,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 19:14:22,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:14:22" (1/1) ... [2022-07-19 19:14:22,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@687bad59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:22, skipping insertion in model container [2022-07-19 19:14:22,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:14:22" (1/1) ... [2022-07-19 19:14:22,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 19:14:23,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 19:14:24,354 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_label40+token_ring.13.cil-2.c[377069,377082] [2022-07-19 19:14:24,375 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_label40+token_ring.13.cil-2.c[383339,383352] [2022-07-19 19:14:24,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:14:24,606 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 19:14:25,183 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_label40+token_ring.13.cil-2.c[377069,377082] [2022-07-19 19:14:25,189 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_label40+token_ring.13.cil-2.c[383339,383352] [2022-07-19 19:14:25,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:14:25,266 INFO L208 MainTranslator]: Completed translation [2022-07-19 19:14:25,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25 WrapperNode [2022-07-19 19:14:25,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 19:14:25,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 19:14:25,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 19:14:25,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 19:14:25,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25" (1/1) ... [2022-07-19 19:14:25,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25" (1/1) ... [2022-07-19 19:14:25,686 INFO L137 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13257 [2022-07-19 19:14:25,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 19:14:25,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 19:14:25,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 19:14:25,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 19:14:25,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25" (1/1) ... [2022-07-19 19:14:25,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25" (1/1) ... [2022-07-19 19:14:25,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25" (1/1) ... [2022-07-19 19:14:25,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25" (1/1) ... [2022-07-19 19:14:26,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25" (1/1) ... [2022-07-19 19:14:26,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25" (1/1) ... [2022-07-19 19:14:26,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25" (1/1) ... [2022-07-19 19:14:26,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 19:14:26,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 19:14:26,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 19:14:26,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 19:14:26,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25" (1/1) ... [2022-07-19 19:14:26,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:14:26,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 19:14:26,309 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) [2022-07-19 19:14:26,326 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 [2022-07-19 19:14:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 19:14:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-19 19:14:26,337 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-19 19:14:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-19 19:14:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-19 19:14:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-19 19:14:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-19 19:14:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-19 19:14:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-19 19:14:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-19 19:14:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-19 19:14:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-19 19:14:26,339 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-19 19:14:26,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 19:14:26,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 19:14:26,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 19:14:26,431 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 19:14:26,432 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 19:14:31,147 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 19:14:31,166 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 19:14:31,166 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-19 19:14:31,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:14:31 BoogieIcfgContainer [2022-07-19 19:14:31,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 19:14:31,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 19:14:31,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 19:14:31,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 19:14:31,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 07:14:22" (1/3) ... [2022-07-19 19:14:31,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622d3b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:14:31, skipping insertion in model container [2022-07-19 19:14:31,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:14:25" (2/3) ... [2022-07-19 19:14:31,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622d3b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:14:31, skipping insertion in model container [2022-07-19 19:14:31,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:14:31" (3/3) ... [2022-07-19 19:14:31,175 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.13.cil-2.c [2022-07-19 19:14:31,183 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 19:14:31,184 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 19:14:31,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 19:14:31,237 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@59364dad, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5e2dbcd1 [2022-07-19 19:14:31,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 19:14:31,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-19 19:14:31,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:14:31,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:14:31,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:14:31,258 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:14:31,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:14:31,261 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2022-07-19 19:14:31,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:14:31,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471829077] [2022-07-19 19:14:31,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:14:31,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:14:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:14:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:31,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:14:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:31,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:14:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:31,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:14:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:31,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:14:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:14:31,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:14:31,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471829077] [2022-07-19 19:14:31,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471829077] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:14:31,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:14:31,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 19:14:31,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377329787] [2022-07-19 19:14:31,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:14:31,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 19:14:31,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:14:31,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 19:14:31,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 19:14:31,579 INFO L87 Difference]: Start difference. First operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:32,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:14:32,987 INFO L93 Difference]: Finished difference Result 5325 states and 9765 transitions. [2022-07-19 19:14:32,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 19:14:32,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:14:32,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:14:33,006 INFO L225 Difference]: With dead ends: 5325 [2022-07-19 19:14:33,006 INFO L226 Difference]: Without dead ends: 2676 [2022-07-19 19:14:33,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 19:14:33,015 INFO L413 NwaCegarLoop]: 4729 mSDtfsCounter, 1107 mSDsluCounter, 12491 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 17220 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 19:14:33,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 17220 Invalid, 838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 19:14:33,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-07-19 19:14:33,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-07-19 19:14:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8243569131832797) internal successors, (4539), 2490 states have internal predecessors, (4539), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-19 19:14:33,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4593 transitions. [2022-07-19 19:14:33,106 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4593 transitions. Word has length 189 [2022-07-19 19:14:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:14:33,106 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4593 transitions. [2022-07-19 19:14:33,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:33,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4593 transitions. [2022-07-19 19:14:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:14:33,110 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:14:33,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:14:33,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 19:14:33,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:14:33,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:14:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1444519429, now seen corresponding path program 1 times [2022-07-19 19:14:33,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:14:33,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222801351] [2022-07-19 19:14:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:14:33,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:14:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:33,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:14:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:33,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:14:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:33,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:14:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:33,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:14:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:14:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:14:33,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:14:33,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222801351] [2022-07-19 19:14:33,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222801351] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:14:33,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:14:33,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 19:14:33,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004940231] [2022-07-19 19:14:33,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:14:33,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 19:14:33,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:14:33,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 19:14:33,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 19:14:33,355 INFO L87 Difference]: Start difference. First operand 2523 states and 4593 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:34,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:14:34,627 INFO L93 Difference]: Finished difference Result 3061 states and 5463 transitions. [2022-07-19 19:14:34,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 19:14:34,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:14:34,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:14:34,638 INFO L225 Difference]: With dead ends: 3061 [2022-07-19 19:14:34,639 INFO L226 Difference]: Without dead ends: 2676 [2022-07-19 19:14:34,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 19:14:34,643 INFO L413 NwaCegarLoop]: 4659 mSDtfsCounter, 1093 mSDsluCounter, 12288 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 16947 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 19:14:34,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 16947 Invalid, 837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 19:14:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-07-19 19:14:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-07-19 19:14:34,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8239549839228295) internal successors, (4538), 2490 states have internal predecessors, (4538), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-19 19:14:34,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4592 transitions. [2022-07-19 19:14:34,705 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4592 transitions. Word has length 189 [2022-07-19 19:14:34,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:14:34,707 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4592 transitions. [2022-07-19 19:14:34,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:34,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4592 transitions. [2022-07-19 19:14:34,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:14:34,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:14:34,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:14:34,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 19:14:34,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:14:34,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:14:34,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1347349561, now seen corresponding path program 1 times [2022-07-19 19:14:34,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:14:34,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273217155] [2022-07-19 19:14:34,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:14:34,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:14:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:14:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:34,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:14:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:34,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:14:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:34,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:14:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:34,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:14:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:34,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:14:34,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:14:34,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273217155] [2022-07-19 19:14:34,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273217155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:14:34,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:14:34,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 19:14:34,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376618762] [2022-07-19 19:14:34,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:14:34,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 19:14:34,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:14:34,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 19:14:34,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 19:14:34,901 INFO L87 Difference]: Start difference. First operand 2523 states and 4592 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:37,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:14:37,865 INFO L93 Difference]: Finished difference Result 3611 states and 6359 transitions. [2022-07-19 19:14:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 19:14:37,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:14:37,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:14:37,876 INFO L225 Difference]: With dead ends: 3611 [2022-07-19 19:14:37,876 INFO L226 Difference]: Without dead ends: 3230 [2022-07-19 19:14:37,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-19 19:14:37,879 INFO L413 NwaCegarLoop]: 4715 mSDtfsCounter, 5624 mSDsluCounter, 12879 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5644 SdHoareTripleChecker+Valid, 17594 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-19 19:14:37,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5644 Valid, 17594 Invalid, 2280 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-19 19:14:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2022-07-19 19:14:37,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 2925. [2022-07-19 19:14:37,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7948269835721775) internal successors, (5135), 2864 states have internal predecessors, (5135), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-07-19 19:14:37,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5236 transitions. [2022-07-19 19:14:37,959 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5236 transitions. Word has length 189 [2022-07-19 19:14:37,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:14:37,959 INFO L495 AbstractCegarLoop]: Abstraction has 2925 states and 5236 transitions. [2022-07-19 19:14:37,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:37,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5236 transitions. [2022-07-19 19:14:37,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:14:37,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:14:37,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:14:37,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 19:14:37,962 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:14:37,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:14:37,963 INFO L85 PathProgramCache]: Analyzing trace with hash 671278923, now seen corresponding path program 1 times [2022-07-19 19:14:37,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:14:37,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057798537] [2022-07-19 19:14:37,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:14:37,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:14:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:37,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:14:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:14:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:38,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:14:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:38,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:14:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:38,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:14:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:38,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:14:38,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:14:38,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057798537] [2022-07-19 19:14:38,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057798537] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:14:38,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:14:38,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:14:38,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239844251] [2022-07-19 19:14:38,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:14:38,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:14:38,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:14:38,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:14:38,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:14:38,105 INFO L87 Difference]: Start difference. First operand 2925 states and 5236 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:41,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:14:41,302 INFO L93 Difference]: Finished difference Result 4589 states and 7942 transitions. [2022-07-19 19:14:41,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:14:41,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:14:41,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:14:41,316 INFO L225 Difference]: With dead ends: 4589 [2022-07-19 19:14:41,317 INFO L226 Difference]: Without dead ends: 3806 [2022-07-19 19:14:41,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-19 19:14:41,331 INFO L413 NwaCegarLoop]: 5036 mSDtfsCounter, 5662 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3353 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5682 SdHoareTripleChecker+Valid, 22865 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 19:14:41,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5682 Valid, 22865 Invalid, 3435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 3353 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 19:14:41,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2022-07-19 19:14:41,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3298. [2022-07-19 19:14:41,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3298 states, 3205 states have (on average 1.7703588143525741) internal successors, (5674), 3209 states have internal predecessors, (5674), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-07-19 19:14:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 5821 transitions. [2022-07-19 19:14:41,440 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 5821 transitions. Word has length 189 [2022-07-19 19:14:41,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:14:41,440 INFO L495 AbstractCegarLoop]: Abstraction has 3298 states and 5821 transitions. [2022-07-19 19:14:41,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:41,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 5821 transitions. [2022-07-19 19:14:41,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:14:41,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:14:41,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:14:41,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 19:14:41,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:14:41,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:14:41,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1053329399, now seen corresponding path program 1 times [2022-07-19 19:14:41,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:14:41,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464204878] [2022-07-19 19:14:41,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:14:41,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:14:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:41,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:14:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:41,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:14:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:41,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:14:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:14:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:41,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:14:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:41,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:14:41,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:14:41,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464204878] [2022-07-19 19:14:41,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464204878] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:14:41,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:14:41,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:14:41,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970707737] [2022-07-19 19:14:41,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:14:41,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:14:41,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:14:41,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:14:41,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:14:41,598 INFO L87 Difference]: Start difference. First operand 3298 states and 5821 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:44,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:14:44,831 INFO L93 Difference]: Finished difference Result 6030 states and 10255 transitions. [2022-07-19 19:14:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:14:44,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:14:44,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:14:44,851 INFO L225 Difference]: With dead ends: 6030 [2022-07-19 19:14:44,851 INFO L226 Difference]: Without dead ends: 4874 [2022-07-19 19:14:44,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-19 19:14:44,859 INFO L413 NwaCegarLoop]: 5024 mSDtfsCounter, 5656 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5676 SdHoareTripleChecker+Valid, 22853 SdHoareTripleChecker+Invalid, 3426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 19:14:44,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5676 Valid, 22853 Invalid, 3426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3342 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 19:14:44,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2022-07-19 19:14:44,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4048. [2022-07-19 19:14:45,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 3897 states have (on average 1.7344110854503465) internal successors, (6759), 3903 states have internal predecessors, (6759), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-07-19 19:14:45,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 7002 transitions. [2022-07-19 19:14:45,015 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 7002 transitions. Word has length 189 [2022-07-19 19:14:45,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:14:45,015 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 7002 transitions. [2022-07-19 19:14:45,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:45,016 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 7002 transitions. [2022-07-19 19:14:45,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:14:45,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:14:45,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:14:45,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 19:14:45,019 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:14:45,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:14:45,019 INFO L85 PathProgramCache]: Analyzing trace with hash -483057593, now seen corresponding path program 1 times [2022-07-19 19:14:45,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:14:45,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079540748] [2022-07-19 19:14:45,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:14:45,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:14:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:45,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:14:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:14:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:45,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:14:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:45,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:14:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:45,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:14:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:45,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:14:45,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:14:45,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079540748] [2022-07-19 19:14:45,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079540748] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:14:45,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:14:45,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:14:45,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532343080] [2022-07-19 19:14:45,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:14:45,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:14:45,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:14:45,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:14:45,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:14:45,248 INFO L87 Difference]: Start difference. First operand 4048 states and 7002 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:14:48,187 INFO L93 Difference]: Finished difference Result 8806 states and 14680 transitions. [2022-07-19 19:14:48,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:14:48,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:14:48,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:14:48,211 INFO L225 Difference]: With dead ends: 8806 [2022-07-19 19:14:48,211 INFO L226 Difference]: Without dead ends: 6900 [2022-07-19 19:14:48,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-19 19:14:48,218 INFO L413 NwaCegarLoop]: 5019 mSDtfsCounter, 5655 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5675 SdHoareTripleChecker+Valid, 22848 SdHoareTripleChecker+Invalid, 3418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 19:14:48,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5675 Valid, 22848 Invalid, 3418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3334 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 19:14:48,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6900 states. [2022-07-19 19:14:48,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6900 to 5549. [2022-07-19 19:14:48,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5549 states, 5282 states have (on average 1.690458159787959) internal successors, (8929), 5292 states have internal predecessors, (8929), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-07-19 19:14:48,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 9370 transitions. [2022-07-19 19:14:48,429 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 9370 transitions. Word has length 189 [2022-07-19 19:14:48,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:14:48,430 INFO L495 AbstractCegarLoop]: Abstraction has 5549 states and 9370 transitions. [2022-07-19 19:14:48,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:48,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 9370 transitions. [2022-07-19 19:14:48,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:14:48,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:14:48,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:14:48,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 19:14:48,433 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:14:48,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:14:48,434 INFO L85 PathProgramCache]: Analyzing trace with hash 920811593, now seen corresponding path program 1 times [2022-07-19 19:14:48,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:14:48,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958059388] [2022-07-19 19:14:48,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:14:48,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:14:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:14:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:48,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:14:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:48,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:14:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:48,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:14:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:48,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:14:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:14:48,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:14:48,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958059388] [2022-07-19 19:14:48,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958059388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:14:48,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:14:48,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:14:48,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543440440] [2022-07-19 19:14:48,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:14:48,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:14:48,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:14:48,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:14:48,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:14:48,581 INFO L87 Difference]: Start difference. First operand 5549 states and 9370 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:52,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:14:52,237 INFO L93 Difference]: Finished difference Result 14357 states and 23546 transitions. [2022-07-19 19:14:52,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:14:52,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:14:52,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:14:52,271 INFO L225 Difference]: With dead ends: 14357 [2022-07-19 19:14:52,271 INFO L226 Difference]: Without dead ends: 10950 [2022-07-19 19:14:52,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-19 19:14:52,287 INFO L413 NwaCegarLoop]: 5014 mSDtfsCounter, 5654 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3326 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5674 SdHoareTripleChecker+Valid, 22843 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-19 19:14:52,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5674 Valid, 22843 Invalid, 3410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3326 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-19 19:14:52,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-07-19 19:14:52,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 8558. [2022-07-19 19:14:52,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8059 states have (on average 1.6477230425611118) internal successors, (13279), 8077 states have internal predecessors, (13279), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-07-19 19:14:52,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 14134 transitions. [2022-07-19 19:14:52,788 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 14134 transitions. Word has length 189 [2022-07-19 19:14:52,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:14:52,788 INFO L495 AbstractCegarLoop]: Abstraction has 8558 states and 14134 transitions. [2022-07-19 19:14:52,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:52,789 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 14134 transitions. [2022-07-19 19:14:52,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:14:52,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:14:52,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:14:52,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 19:14:52,796 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:14:52,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:14:52,796 INFO L85 PathProgramCache]: Analyzing trace with hash 134813703, now seen corresponding path program 1 times [2022-07-19 19:14:52,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:14:52,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641036144] [2022-07-19 19:14:52,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:14:52,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:14:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:52,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:14:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:52,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:14:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:52,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:14:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:52,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:14:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:52,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:14:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:14:52,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:14:52,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641036144] [2022-07-19 19:14:52,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641036144] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:14:52,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:14:52,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:14:52,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674375933] [2022-07-19 19:14:52,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:14:52,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:14:52,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:14:52,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:14:52,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:14:52,973 INFO L87 Difference]: Start difference. First operand 8558 states and 14134 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:56,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:14:56,511 INFO L93 Difference]: Finished difference Result 25460 states and 41340 transitions. [2022-07-19 19:14:56,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:14:56,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:14:56,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:14:56,632 INFO L225 Difference]: With dead ends: 25460 [2022-07-19 19:14:56,632 INFO L226 Difference]: Without dead ends: 19044 [2022-07-19 19:14:56,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-19 19:14:56,654 INFO L413 NwaCegarLoop]: 4750 mSDtfsCounter, 5763 mSDsluCounter, 17145 mSDsCounter, 0 mSdLazyCounter, 2957 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5783 SdHoareTripleChecker+Valid, 21895 SdHoareTripleChecker+Invalid, 3079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 2957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 19:14:56,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5783 Valid, 21895 Invalid, 3079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [122 Valid, 2957 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 19:14:56,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19044 states. [2022-07-19 19:14:57,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19044 to 14591. [2022-07-19 19:14:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.6143968300557676) internal successors, (22001), 13662 states have internal predecessors, (22001), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-19 19:14:57,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23738 transitions. [2022-07-19 19:14:57,372 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23738 transitions. Word has length 189 [2022-07-19 19:14:57,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:14:57,372 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23738 transitions. [2022-07-19 19:14:57,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:14:57,372 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23738 transitions. [2022-07-19 19:14:57,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:14:57,379 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:14:57,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:14:57,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 19:14:57,380 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:14:57,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:14:57,380 INFO L85 PathProgramCache]: Analyzing trace with hash 802195593, now seen corresponding path program 1 times [2022-07-19 19:14:57,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:14:57,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046612960] [2022-07-19 19:14:57,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:14:57,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:14:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:57,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:14:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:57,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:14:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:57,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:14:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:57,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:14:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:57,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:14:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:14:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:14:57,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:14:57,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046612960] [2022-07-19 19:14:57,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046612960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:14:57,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:14:57,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:14:57,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474930920] [2022-07-19 19:14:57,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:14:57,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:14:57,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:14:57,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:14:57,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:14:57,535 INFO L87 Difference]: Start difference. First operand 14591 states and 23738 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:15:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:15:00,250 INFO L93 Difference]: Finished difference Result 31774 states and 51709 transitions. [2022-07-19 19:15:00,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 19:15:00,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:15:00,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:15:00,309 INFO L225 Difference]: With dead ends: 31774 [2022-07-19 19:15:00,309 INFO L226 Difference]: Without dead ends: 19325 [2022-07-19 19:15:00,477 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 [2022-07-19 19:15:00,479 INFO L413 NwaCegarLoop]: 4637 mSDtfsCounter, 5161 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5182 SdHoareTripleChecker+Valid, 21461 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 19:15:00,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5182 Valid, 21461 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 19:15:00,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19325 states. [2022-07-19 19:15:01,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19325 to 14591. [2022-07-19 19:15:01,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.611975344878192) internal successors, (21968), 13662 states have internal predecessors, (21968), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-19 19:15:01,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23705 transitions. [2022-07-19 19:15:01,260 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23705 transitions. Word has length 189 [2022-07-19 19:15:01,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:15:01,260 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23705 transitions. [2022-07-19 19:15:01,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:15:01,261 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23705 transitions. [2022-07-19 19:15:01,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:15:01,270 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:15:01,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:15:01,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 19:15:01,270 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:15:01,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:15:01,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1393033273, now seen corresponding path program 1 times [2022-07-19 19:15:01,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:15:01,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893243532] [2022-07-19 19:15:01,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:15:01,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:15:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:01,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:15:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:01,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:15:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:01,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:15:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:01,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:15:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:01,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:15:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:01,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:15:01,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:15:01,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893243532] [2022-07-19 19:15:01,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893243532] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:15:01,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:15:01,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:15:01,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786389527] [2022-07-19 19:15:01,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:15:01,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:15:01,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:15:01,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:15:01,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:15:01,405 INFO L87 Difference]: Start difference. First operand 14591 states and 23705 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:15:06,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:15:06,957 INFO L93 Difference]: Finished difference Result 47633 states and 76890 transitions. [2022-07-19 19:15:06,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:15:06,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:15:06,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:15:07,057 INFO L225 Difference]: With dead ends: 47633 [2022-07-19 19:15:07,057 INFO L226 Difference]: Without dead ends: 35184 [2022-07-19 19:15:07,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-19 19:15:07,091 INFO L413 NwaCegarLoop]: 4998 mSDtfsCounter, 5645 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3291 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5665 SdHoareTripleChecker+Valid, 22827 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 19:15:07,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5665 Valid, 22827 Invalid, 3375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3291 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 19:15:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35184 states. [2022-07-19 19:15:08,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35184 to 26721. [2022-07-19 19:15:08,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26721 states, 24830 states have (on average 1.5892066049134113) internal successors, (39460), 24896 states have internal predecessors, (39460), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-07-19 19:15:08,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26721 states to 26721 states and 43123 transitions. [2022-07-19 19:15:08,816 INFO L78 Accepts]: Start accepts. Automaton has 26721 states and 43123 transitions. Word has length 189 [2022-07-19 19:15:08,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:15:08,818 INFO L495 AbstractCegarLoop]: Abstraction has 26721 states and 43123 transitions. [2022-07-19 19:15:08,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:15:08,818 INFO L276 IsEmpty]: Start isEmpty. Operand 26721 states and 43123 transitions. [2022-07-19 19:15:08,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:15:08,835 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:15:08,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:15:08,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 19:15:08,836 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:15:08,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:15:08,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1048205111, now seen corresponding path program 1 times [2022-07-19 19:15:08,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:15:08,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963911023] [2022-07-19 19:15:08,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:15:08,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:15:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:08,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:15:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:15:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:08,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:15:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:08,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:15:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:08,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:15:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:15:08,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:15:08,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963911023] [2022-07-19 19:15:08,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963911023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:15:08,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:15:08,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:15:08,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021490464] [2022-07-19 19:15:08,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:15:08,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:15:08,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:15:08,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:15:08,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:15:08,976 INFO L87 Difference]: Start difference. First operand 26721 states and 43123 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:15:16,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:15:16,890 INFO L93 Difference]: Finished difference Result 92049 states and 148866 transitions. [2022-07-19 19:15:16,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:15:16,891 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:15:16,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:15:17,098 INFO L225 Difference]: With dead ends: 92049 [2022-07-19 19:15:17,099 INFO L226 Difference]: Without dead ends: 67470 [2022-07-19 19:15:17,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-19 19:15:17,166 INFO L413 NwaCegarLoop]: 4991 mSDtfsCounter, 5647 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3280 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5667 SdHoareTripleChecker+Valid, 22820 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-19 19:15:17,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5667 Valid, 22820 Invalid, 3367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 3280 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-19 19:15:17,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67470 states. [2022-07-19 19:15:20,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67470 to 51042. [2022-07-19 19:15:20,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51042 states, 47295 states have (on average 1.575938259858336) internal successors, (74534), 47425 states have internal predecessors, (74534), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-19 19:15:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82535 transitions. [2022-07-19 19:15:20,719 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82535 transitions. Word has length 189 [2022-07-19 19:15:20,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:15:20,719 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82535 transitions. [2022-07-19 19:15:20,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:15:20,720 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82535 transitions. [2022-07-19 19:15:20,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:15:20,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:15:20,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:15:20,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 19:15:20,744 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:15:20,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:15:20,745 INFO L85 PathProgramCache]: Analyzing trace with hash -67250297, now seen corresponding path program 1 times [2022-07-19 19:15:20,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:15:20,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830112841] [2022-07-19 19:15:20,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:15:20,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:15:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:20,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:15:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:20,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:15:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:20,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:15:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:20,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:15:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:20,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:15:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:15:20,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:15:20,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830112841] [2022-07-19 19:15:20,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830112841] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:15:20,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:15:20,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:15:20,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227117631] [2022-07-19 19:15:20,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:15:20,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:15:20,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:15:20,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:15:20,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:15:20,884 INFO L87 Difference]: Start difference. First operand 51042 states and 82535 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:15:28,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:15:28,156 INFO L93 Difference]: Finished difference Result 117340 states and 192222 transitions. [2022-07-19 19:15:28,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 19:15:28,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:15:28,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:15:28,354 INFO L225 Difference]: With dead ends: 117340 [2022-07-19 19:15:28,354 INFO L226 Difference]: Without dead ends: 68440 [2022-07-19 19:15:28,445 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 [2022-07-19 19:15:28,446 INFO L413 NwaCegarLoop]: 4623 mSDtfsCounter, 5162 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5183 SdHoareTripleChecker+Valid, 21447 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 19:15:28,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5183 Valid, 21447 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 19:15:28,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68440 states. [2022-07-19 19:15:32,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68440 to 51042. [2022-07-19 19:15:32,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51042 states, 47295 states have (on average 1.5732106988053705) internal successors, (74405), 47425 states have internal predecessors, (74405), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-19 19:15:32,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82406 transitions. [2022-07-19 19:15:32,409 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82406 transitions. Word has length 189 [2022-07-19 19:15:32,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:15:32,410 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82406 transitions. [2022-07-19 19:15:32,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:15:32,410 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82406 transitions. [2022-07-19 19:15:32,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:15:32,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:15:32,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:15:32,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 19:15:32,445 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:15:32,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:15:32,446 INFO L85 PathProgramCache]: Analyzing trace with hash -678519355, now seen corresponding path program 1 times [2022-07-19 19:15:32,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:15:32,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438915580] [2022-07-19 19:15:32,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:15:32,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:15:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:32,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:15:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:32,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:15:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:32,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:15:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:32,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:15:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:32,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:15:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:32,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:15:32,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:15:32,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438915580] [2022-07-19 19:15:32,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438915580] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:15:32,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:15:32,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:15:32,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425772043] [2022-07-19 19:15:32,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:15:32,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:15:32,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:15:32,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:15:32,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:15:32,589 INFO L87 Difference]: Start difference. First operand 51042 states and 82406 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:15:47,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:15:47,329 INFO L93 Difference]: Finished difference Result 180620 states and 293500 transitions. [2022-07-19 19:15:47,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:15:47,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-19 19:15:47,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:15:47,856 INFO L225 Difference]: With dead ends: 180620 [2022-07-19 19:15:47,856 INFO L226 Difference]: Without dead ends: 131720 [2022-07-19 19:15:48,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-19 19:15:48,013 INFO L413 NwaCegarLoop]: 4976 mSDtfsCounter, 5635 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3243 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 22805 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-19 19:15:48,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5655 Valid, 22805 Invalid, 3330 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 3243 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-19 19:15:48,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131720 states. [2022-07-19 19:15:55,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131720 to 100069. [2022-07-19 19:15:56,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100069 states, 92610 states have (on average 1.5657380412482453) internal successors, (145003), 92868 states have internal predecessors, (145003), 5659 states have call successors, (5659), 1542 states have call predecessors, (5659), 1798 states have return successors, (12476), 5914 states have call predecessors, (12476), 5659 states have call successors, (12476) [2022-07-19 19:15:56,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100069 states to 100069 states and 163138 transitions. [2022-07-19 19:15:56,582 INFO L78 Accepts]: Start accepts. Automaton has 100069 states and 163138 transitions. Word has length 189 [2022-07-19 19:15:56,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:15:56,583 INFO L495 AbstractCegarLoop]: Abstraction has 100069 states and 163138 transitions. [2022-07-19 19:15:56,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (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) [2022-07-19 19:15:56,583 INFO L276 IsEmpty]: Start isEmpty. Operand 100069 states and 163138 transitions. [2022-07-19 19:15:56,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 19:15:56,629 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:15:56,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:15:56,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 19:15:56,630 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:15:56,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:15:56,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2083711033, now seen corresponding path program 1 times [2022-07-19 19:15:56,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:15:56,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347168185] [2022-07-19 19:15:56,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:15:56,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:15:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:56,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:15:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:56,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 19:15:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 19:15:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:56,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 19:15:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:56,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-19 19:15:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:15:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:15:56,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:15:56,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347168185] [2022-07-19 19:15:56,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347168185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:15:56,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:15:56,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:15:56,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208116088] [2022-07-19 19:15:56,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:15:56,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:15:56,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:15:56,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:15:56,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:15:56,776 INFO L87 Difference]: Start difference. First operand 100069 states and 163138 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)