./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/transmitter.16.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45519c8273c53879cf6a170ed74d5bc0be814b1f3243ce6c30d1d3efe9a3cf32 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 17:55:48,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 17:55:48,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 17:55:49,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 17:55:49,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 17:55:49,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 17:55:49,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 17:55:49,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 17:55:49,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 17:55:49,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 17:55:49,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 17:55:49,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 17:55:49,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 17:55:49,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 17:55:49,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 17:55:49,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 17:55:49,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 17:55:49,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 17:55:49,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 17:55:49,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 17:55:49,074 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 17:55:49,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 17:55:49,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 17:55:49,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 17:55:49,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 17:55:49,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 17:55:49,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 17:55:49,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 17:55:49,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 17:55:49,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 17:55:49,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 17:55:49,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 17:55:49,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 17:55:49,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 17:55:49,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 17:55:49,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 17:55:49,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 17:55:49,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 17:55:49,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 17:55:49,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 17:55:49,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 17:55:49,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 17:55:49,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 17:55:49,128 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 17:55:49,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 17:55:49,129 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 17:55:49,129 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 17:55:49,130 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 17:55:49,130 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 17:55:49,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 17:55:49,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 17:55:49,131 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 17:55:49,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 17:55:49,132 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 17:55:49,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 17:55:49,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 17:55:49,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 17:55:49,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 17:55:49,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 17:55:49,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 17:55:49,133 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 17:55:49,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 17:55:49,134 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 17:55:49,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 17:55:49,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 17:55:49,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 17:55:49,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 17:55:49,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:55:49,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 17:55:49,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 17:55:49,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 17:55:49,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 17:55:49,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 17:55:49,137 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 17:55:49,137 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 17:55:49,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 17:55:49,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45519c8273c53879cf6a170ed74d5bc0be814b1f3243ce6c30d1d3efe9a3cf32 [2022-07-22 17:55:49,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 17:55:49,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 17:55:49,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 17:55:49,397 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 17:55:49,398 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 17:55:49,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.16.cil.c [2022-07-22 17:55:49,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57b66819/4e16f820cd294260b91f7d6573667563/FLAGfd6344c00 [2022-07-22 17:55:49,889 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 17:55:49,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c [2022-07-22 17:55:49,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57b66819/4e16f820cd294260b91f7d6573667563/FLAGfd6344c00 [2022-07-22 17:55:50,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57b66819/4e16f820cd294260b91f7d6573667563 [2022-07-22 17:55:50,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 17:55:50,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 17:55:50,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 17:55:50,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 17:55:50,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 17:55:50,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768530a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50, skipping insertion in model container [2022-07-22 17:55:50,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 17:55:50,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 17:55:50,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c[706,719] [2022-07-22 17:55:50,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:55:50,583 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 17:55:50,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c[706,719] [2022-07-22 17:55:50,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:55:50,685 INFO L208 MainTranslator]: Completed translation [2022-07-22 17:55:50,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50 WrapperNode [2022-07-22 17:55:50,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 17:55:50,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 17:55:50,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 17:55:50,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 17:55:50,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,762 INFO L137 Inliner]: procedures = 56, calls = 71, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 945 [2022-07-22 17:55:50,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 17:55:50,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 17:55:50,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 17:55:50,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 17:55:50,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 17:55:50,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 17:55:50,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 17:55:50,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 17:55:50,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50" (1/1) ... [2022-07-22 17:55:50,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:55:50,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:55:50,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 17:55:50,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 17:55:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 17:55:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-22 17:55:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-22 17:55:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-22 17:55:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-22 17:55:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-22 17:55:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-22 17:55:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-22 17:55:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-22 17:55:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-22 17:55:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-22 17:55:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-22 17:55:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-22 17:55:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 17:55:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 17:55:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 17:55:51,093 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 17:55:51,108 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 17:55:51,825 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 17:55:51,836 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 17:55:51,840 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-07-22 17:55:51,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:55:51 BoogieIcfgContainer [2022-07-22 17:55:51,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 17:55:51,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 17:55:51,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 17:55:51,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 17:55:51,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 05:55:50" (1/3) ... [2022-07-22 17:55:51,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1220790a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:55:51, skipping insertion in model container [2022-07-22 17:55:51,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:55:50" (2/3) ... [2022-07-22 17:55:51,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1220790a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:55:51, skipping insertion in model container [2022-07-22 17:55:51,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:55:51" (3/3) ... [2022-07-22 17:55:51,852 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2022-07-22 17:55:51,866 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 17:55:51,866 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 17:55:51,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 17:55:51,942 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@5c897fde, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6e49f8d8 [2022-07-22 17:55:51,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 17:55:51,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 390 states have (on average 1.6743589743589744) internal successors, (653), 392 states have internal predecessors, (653), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-22 17:55:51,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:55:51,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:55:51,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:55:51,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:55:51,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:55:51,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1676637755, now seen corresponding path program 1 times [2022-07-22 17:55:51,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:55:51,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329612247] [2022-07-22 17:55:51,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:55:51,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:55:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:52,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:55:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:52,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:55:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:52,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:55:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:52,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:55:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:52,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:55:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:52,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:55:52,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:55:52,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329612247] [2022-07-22 17:55:52,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329612247] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:55:52,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:55:52,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 17:55:52,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139989429] [2022-07-22 17:55:52,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:55:52,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:55:52,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:55:52,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:55:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:55:52,616 INFO L87 Difference]: Start difference. First operand has 424 states, 390 states have (on average 1.6743589743589744) internal successors, (653), 392 states have internal predecessors, (653), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:55:54,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:55:54,570 INFO L93 Difference]: Finished difference Result 1001 states and 1674 transitions. [2022-07-22 17:55:54,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 17:55:54,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 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 195 [2022-07-22 17:55:54,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:55:54,587 INFO L225 Difference]: With dead ends: 1001 [2022-07-22 17:55:54,587 INFO L226 Difference]: Without dead ends: 581 [2022-07-22 17:55:54,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:55:54,596 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 1166 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-22 17:55:54,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 1177 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-22 17:55:54,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-07-22 17:55:54,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 419. [2022-07-22 17:55:54,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 386 states have (on average 1.5803108808290156) internal successors, (610), 387 states have internal predecessors, (610), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-22 17:55:54,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 662 transitions. [2022-07-22 17:55:54,681 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 662 transitions. Word has length 195 [2022-07-22 17:55:54,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:55:54,681 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 662 transitions. [2022-07-22 17:55:54,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:55:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 662 transitions. [2022-07-22 17:55:54,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:55:54,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:55:54,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:55:54,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 17:55:54,686 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:55:54,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:55:54,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1924605949, now seen corresponding path program 1 times [2022-07-22 17:55:54,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:55:54,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823537778] [2022-07-22 17:55:54,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:55:54,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:55:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:54,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:55:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:54,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:55:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:54,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:55:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:54,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:55:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:54,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:55:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:54,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:55:54,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:55:54,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823537778] [2022-07-22 17:55:54,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823537778] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:55:54,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:55:54,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 17:55:54,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199341582] [2022-07-22 17:55:54,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:55:54,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:55:54,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:55:54,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:55:54,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:55:54,892 INFO L87 Difference]: Start difference. First operand 419 states and 662 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:55:56,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:55:56,594 INFO L93 Difference]: Finished difference Result 984 states and 1574 transitions. [2022-07-22 17:55:56,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 17:55:56,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 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 195 [2022-07-22 17:55:56,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:55:56,599 INFO L225 Difference]: With dead ends: 984 [2022-07-22 17:55:56,599 INFO L226 Difference]: Without dead ends: 581 [2022-07-22 17:55:56,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:55:56,603 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 1153 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:55:56,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 1163 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:55:56,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-07-22 17:55:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 419. [2022-07-22 17:55:56,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 386 states have (on average 1.577720207253886) internal successors, (609), 387 states have internal predecessors, (609), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-22 17:55:56,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 661 transitions. [2022-07-22 17:55:56,659 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 661 transitions. Word has length 195 [2022-07-22 17:55:56,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:55:56,662 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 661 transitions. [2022-07-22 17:55:56,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:55:56,662 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 661 transitions. [2022-07-22 17:55:56,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:55:56,665 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:55:56,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:55:56,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 17:55:56,666 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:55:56,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:55:56,666 INFO L85 PathProgramCache]: Analyzing trace with hash -404374593, now seen corresponding path program 1 times [2022-07-22 17:55:56,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:55:56,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985683629] [2022-07-22 17:55:56,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:55:56,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:55:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:55:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:56,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:55:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:56,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:55:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:56,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:55:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:55:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:55:56,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:55:56,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985683629] [2022-07-22 17:55:56,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985683629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:55:56,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:55:56,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:55:56,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671192607] [2022-07-22 17:55:56,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:55:56,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:55:56,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:55:56,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:55:56,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:55:56,925 INFO L87 Difference]: Start difference. First operand 419 states and 661 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:55:59,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:55:59,107 INFO L93 Difference]: Finished difference Result 1007 states and 1621 transitions. [2022-07-22 17:55:59,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 17:55:59,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-07-22 17:55:59,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:55:59,111 INFO L225 Difference]: With dead ends: 1007 [2022-07-22 17:55:59,112 INFO L226 Difference]: Without dead ends: 610 [2022-07-22 17:55:59,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-22 17:55:59,114 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 1256 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-22 17:55:59,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 1774 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-22 17:55:59,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-07-22 17:55:59,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 419. [2022-07-22 17:55:59,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 386 states have (on average 1.5751295336787565) internal successors, (608), 387 states have internal predecessors, (608), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-22 17:55:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 660 transitions. [2022-07-22 17:55:59,147 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 660 transitions. Word has length 195 [2022-07-22 17:55:59,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:55:59,147 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 660 transitions. [2022-07-22 17:55:59,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:55:59,147 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 660 transitions. [2022-07-22 17:55:59,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:55:59,149 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:55:59,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:55:59,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 17:55:59,150 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:55:59,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:55:59,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1907472899, now seen corresponding path program 1 times [2022-07-22 17:55:59,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:55:59,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565030264] [2022-07-22 17:55:59,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:55:59,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:55:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:59,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:55:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:59,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:55:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:59,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:55:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:59,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:55:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:59,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:55:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:55:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:55:59,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:55:59,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565030264] [2022-07-22 17:55:59,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565030264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:55:59,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:55:59,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:55:59,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542217182] [2022-07-22 17:55:59,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:55:59,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:55:59,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:55:59,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:55:59,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:55:59,353 INFO L87 Difference]: Start difference. First operand 419 states and 660 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:04,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:56:04,135 INFO L93 Difference]: Finished difference Result 1998 states and 3199 transitions. [2022-07-22 17:56:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 17:56:04,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-07-22 17:56:04,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:56:04,146 INFO L225 Difference]: With dead ends: 1998 [2022-07-22 17:56:04,146 INFO L226 Difference]: Without dead ends: 1601 [2022-07-22 17:56:04,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-07-22 17:56:04,159 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 2662 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3621 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2696 SdHoareTripleChecker+Valid, 3214 SdHoareTripleChecker+Invalid, 3711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 3621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-22 17:56:04,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2696 Valid, 3214 Invalid, 3711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 3621 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-22 17:56:04,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-07-22 17:56:04,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 841. [2022-07-22 17:56:04,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 777 states have (on average 1.5868725868725868) internal successors, (1233), 780 states have internal predecessors, (1233), 49 states have call successors, (49), 12 states have call predecessors, (49), 14 states have return successors, (56), 50 states have call predecessors, (56), 49 states have call successors, (56) [2022-07-22 17:56:04,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1338 transitions. [2022-07-22 17:56:04,254 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1338 transitions. Word has length 195 [2022-07-22 17:56:04,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:56:04,254 INFO L495 AbstractCegarLoop]: Abstraction has 841 states and 1338 transitions. [2022-07-22 17:56:04,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:04,255 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1338 transitions. [2022-07-22 17:56:04,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:56:04,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:56:04,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:56:04,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 17:56:04,258 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:56:04,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:56:04,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1817412609, now seen corresponding path program 1 times [2022-07-22 17:56:04,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:56:04,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767817921] [2022-07-22 17:56:04,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:56:04,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:56:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:04,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:56:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:04,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:56:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:04,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:56:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:04,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:56:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:04,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:56:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:04,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:56:04,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:56:04,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767817921] [2022-07-22 17:56:04,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767817921] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:56:04,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:56:04,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:56:04,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129432455] [2022-07-22 17:56:04,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:56:04,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:56:04,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:56:04,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:56:04,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:56:04,453 INFO L87 Difference]: Start difference. First operand 841 states and 1338 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:08,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:56:08,878 INFO L93 Difference]: Finished difference Result 3894 states and 6207 transitions. [2022-07-22 17:56:08,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 17:56:08,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-07-22 17:56:08,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:56:08,895 INFO L225 Difference]: With dead ends: 3894 [2022-07-22 17:56:08,896 INFO L226 Difference]: Without dead ends: 3077 [2022-07-22 17:56:08,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-07-22 17:56:08,903 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 2719 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 3422 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2753 SdHoareTripleChecker+Valid, 3048 SdHoareTripleChecker+Invalid, 3519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 3422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:56:08,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2753 Valid, 3048 Invalid, 3519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3422 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-22 17:56:08,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-07-22 17:56:09,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1620. [2022-07-22 17:56:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1500 states have (on average 1.5786666666666667) internal successors, (2368), 1505 states have internal predecessors, (2368), 91 states have call successors, (91), 24 states have call predecessors, (91), 28 states have return successors, (108), 94 states have call predecessors, (108), 91 states have call successors, (108) [2022-07-22 17:56:09,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2567 transitions. [2022-07-22 17:56:09,083 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2567 transitions. Word has length 195 [2022-07-22 17:56:09,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:56:09,083 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 2567 transitions. [2022-07-22 17:56:09,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:09,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2567 transitions. [2022-07-22 17:56:09,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:56:09,086 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:56:09,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:56:09,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 17:56:09,087 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:56:09,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:56:09,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1787723197, now seen corresponding path program 1 times [2022-07-22 17:56:09,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:56:09,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645682800] [2022-07-22 17:56:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:56:09,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:56:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:09,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:56:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:09,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:56:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:09,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:56:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:09,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:56:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:56:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:56:09,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:56:09,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645682800] [2022-07-22 17:56:09,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645682800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:56:09,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:56:09,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:56:09,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476569426] [2022-07-22 17:56:09,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:56:09,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:56:09,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:56:09,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:56:09,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:56:09,270 INFO L87 Difference]: Start difference. First operand 1620 states and 2567 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:13,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:56:13,751 INFO L93 Difference]: Finished difference Result 7623 states and 12108 transitions. [2022-07-22 17:56:13,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 17:56:13,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-07-22 17:56:13,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:56:13,781 INFO L225 Difference]: With dead ends: 7623 [2022-07-22 17:56:13,782 INFO L226 Difference]: Without dead ends: 6027 [2022-07-22 17:56:13,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-07-22 17:56:13,790 INFO L413 NwaCegarLoop]: 1114 mSDtfsCounter, 2663 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3603 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 3203 SdHoareTripleChecker+Invalid, 3696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:56:13,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 3203 Invalid, 3696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3603 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-22 17:56:13,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2022-07-22 17:56:14,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3181. [2022-07-22 17:56:14,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2949 states have (on average 1.5740929128518142) internal successors, (4642), 2958 states have internal predecessors, (4642), 175 states have call successors, (175), 48 states have call predecessors, (175), 56 states have return successors, (218), 182 states have call predecessors, (218), 175 states have call successors, (218) [2022-07-22 17:56:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 5035 transitions. [2022-07-22 17:56:14,127 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 5035 transitions. Word has length 195 [2022-07-22 17:56:14,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:56:14,127 INFO L495 AbstractCegarLoop]: Abstraction has 3181 states and 5035 transitions. [2022-07-22 17:56:14,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:14,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 5035 transitions. [2022-07-22 17:56:14,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:56:14,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:56:14,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:56:14,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 17:56:14,132 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:56:14,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:56:14,133 INFO L85 PathProgramCache]: Analyzing trace with hash 379997247, now seen corresponding path program 1 times [2022-07-22 17:56:14,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:56:14,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457885218] [2022-07-22 17:56:14,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:56:14,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:56:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:14,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:56:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:14,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:56:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:14,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:56:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:14,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:56:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:14,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:56:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:56:14,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:56:14,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457885218] [2022-07-22 17:56:14,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457885218] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:56:14,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:56:14,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:56:14,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392210287] [2022-07-22 17:56:14,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:56:14,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:56:14,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:56:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:56:14,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:56:14,316 INFO L87 Difference]: Start difference. First operand 3181 states and 5035 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:19,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:56:19,405 INFO L93 Difference]: Finished difference Result 15080 states and 23926 transitions. [2022-07-22 17:56:19,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 17:56:19,406 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-07-22 17:56:19,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:56:19,460 INFO L225 Difference]: With dead ends: 15080 [2022-07-22 17:56:19,460 INFO L226 Difference]: Without dead ends: 11923 [2022-07-22 17:56:19,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-07-22 17:56:19,476 INFO L413 NwaCegarLoop]: 1111 mSDtfsCounter, 2663 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3597 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 3200 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-22 17:56:19,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 3200 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3597 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-22 17:56:19,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11923 states. [2022-07-22 17:56:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11923 to 6310. [2022-07-22 17:56:20,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 5854 states have (on average 1.5715749914588315) internal successors, (9200), 5871 states have internal predecessors, (9200), 343 states have call successors, (343), 96 states have call predecessors, (343), 112 states have return successors, (456), 358 states have call predecessors, (456), 343 states have call successors, (456) [2022-07-22 17:56:20,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 9999 transitions. [2022-07-22 17:56:20,273 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 9999 transitions. Word has length 195 [2022-07-22 17:56:20,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:56:20,273 INFO L495 AbstractCegarLoop]: Abstraction has 6310 states and 9999 transitions. [2022-07-22 17:56:20,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:20,274 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 9999 transitions. [2022-07-22 17:56:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:56:20,278 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:56:20,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:56:20,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 17:56:20,278 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:56:20,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:56:20,279 INFO L85 PathProgramCache]: Analyzing trace with hash 888776061, now seen corresponding path program 1 times [2022-07-22 17:56:20,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:56:20,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330477493] [2022-07-22 17:56:20,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:56:20,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:56:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:20,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:56:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:20,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:56:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:20,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:56:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:20,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:56:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:20,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:56:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:20,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:56:20,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:56:20,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330477493] [2022-07-22 17:56:20,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330477493] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:56:20,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:56:20,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:56:20,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061149048] [2022-07-22 17:56:20,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:56:20,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:56:20,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:56:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:56:20,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:56:20,451 INFO L87 Difference]: Start difference. First operand 6310 states and 9999 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:27,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:56:27,123 INFO L93 Difference]: Finished difference Result 29993 states and 47620 transitions. [2022-07-22 17:56:27,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 17:56:27,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-07-22 17:56:27,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:56:27,224 INFO L225 Difference]: With dead ends: 29993 [2022-07-22 17:56:27,224 INFO L226 Difference]: Without dead ends: 23707 [2022-07-22 17:56:27,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-07-22 17:56:27,257 INFO L413 NwaCegarLoop]: 1108 mSDtfsCounter, 2663 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3591 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 3684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:56:27,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 3197 Invalid, 3684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3591 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-22 17:56:27,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23707 states. [2022-07-22 17:56:28,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23707 to 12583. [2022-07-22 17:56:28,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12583 states, 11679 states have (on average 1.5701686788252418) internal successors, (18338), 11712 states have internal predecessors, (18338), 679 states have call successors, (679), 192 states have call predecessors, (679), 224 states have return successors, (986), 710 states have call predecessors, (986), 679 states have call successors, (986) [2022-07-22 17:56:28,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12583 states to 12583 states and 20003 transitions. [2022-07-22 17:56:28,740 INFO L78 Accepts]: Start accepts. Automaton has 12583 states and 20003 transitions. Word has length 195 [2022-07-22 17:56:28,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:56:28,741 INFO L495 AbstractCegarLoop]: Abstraction has 12583 states and 20003 transitions. [2022-07-22 17:56:28,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:28,741 INFO L276 IsEmpty]: Start isEmpty. Operand 12583 states and 20003 transitions. [2022-07-22 17:56:28,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:56:28,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:56:28,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:56:28,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 17:56:28,748 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:56:28,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:56:28,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1034474369, now seen corresponding path program 1 times [2022-07-22 17:56:28,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:56:28,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378475925] [2022-07-22 17:56:28,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:56:28,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:56:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:28,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:56:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:28,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:56:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:56:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:28,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:56:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:28,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:56:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:28,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:56:28,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:56:28,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378475925] [2022-07-22 17:56:28,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378475925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:56:28,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:56:28,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:56:28,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720619755] [2022-07-22 17:56:28,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:56:28,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:56:28,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:56:28,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:56:28,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:56:28,942 INFO L87 Difference]: Start difference. First operand 12583 states and 20003 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:39,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:56:39,456 INFO L93 Difference]: Finished difference Result 59818 states and 95198 transitions. [2022-07-22 17:56:39,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 17:56:39,456 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-07-22 17:56:39,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:56:39,616 INFO L225 Difference]: With dead ends: 59818 [2022-07-22 17:56:39,616 INFO L226 Difference]: Without dead ends: 47259 [2022-07-22 17:56:39,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-07-22 17:56:39,670 INFO L413 NwaCegarLoop]: 1103 mSDtfsCounter, 2666 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3582 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2700 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 3582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-22 17:56:39,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2700 Valid, 3192 Invalid, 3678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 3582 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-22 17:56:39,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47259 states. [2022-07-22 17:56:42,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47259 to 25160. [2022-07-22 17:56:42,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25160 states, 23360 states have (on average 1.5693493150684932) internal successors, (36660), 23425 states have internal predecessors, (36660), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 448 states have return successors, (2208), 1414 states have call predecessors, (2208), 1351 states have call successors, (2208) [2022-07-22 17:56:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25160 states to 25160 states and 40219 transitions. [2022-07-22 17:56:42,562 INFO L78 Accepts]: Start accepts. Automaton has 25160 states and 40219 transitions. Word has length 195 [2022-07-22 17:56:42,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:56:42,562 INFO L495 AbstractCegarLoop]: Abstraction has 25160 states and 40219 transitions. [2022-07-22 17:56:42,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:42,563 INFO L276 IsEmpty]: Start isEmpty. Operand 25160 states and 40219 transitions. [2022-07-22 17:56:42,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:56:42,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:56:42,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:56:42,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 17:56:42,576 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:56:42,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:56:42,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1535884605, now seen corresponding path program 1 times [2022-07-22 17:56:42,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:56:42,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629532254] [2022-07-22 17:56:42,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:56:42,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:56:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:42,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:56:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:42,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:56:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:42,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:56:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:42,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:56:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:42,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:56:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:42,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:56:42,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:56:42,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629532254] [2022-07-22 17:56:42,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629532254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:56:42,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:56:42,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:56:42,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537633257] [2022-07-22 17:56:42,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:56:42,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:56:42,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:56:42,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:56:42,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:56:42,786 INFO L87 Difference]: Start difference. First operand 25160 states and 40219 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:48,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:56:48,471 INFO L93 Difference]: Finished difference Result 59727 states and 96857 transitions. [2022-07-22 17:56:48,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 17:56:48,472 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-07-22 17:56:48,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:56:48,604 INFO L225 Difference]: With dead ends: 59727 [2022-07-22 17:56:48,605 INFO L226 Difference]: Without dead ends: 34589 [2022-07-22 17:56:48,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-22 17:56:48,667 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 1261 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:56:48,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 1747 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:56:48,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34589 states. [2022-07-22 17:56:51,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34589 to 25160. [2022-07-22 17:56:51,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25160 states, 23360 states have (on average 1.566566780821918) internal successors, (36595), 23425 states have internal predecessors, (36595), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 448 states have return successors, (2208), 1414 states have call predecessors, (2208), 1351 states have call successors, (2208) [2022-07-22 17:56:51,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25160 states to 25160 states and 40154 transitions. [2022-07-22 17:56:51,347 INFO L78 Accepts]: Start accepts. Automaton has 25160 states and 40154 transitions. Word has length 195 [2022-07-22 17:56:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:56:51,348 INFO L495 AbstractCegarLoop]: Abstraction has 25160 states and 40154 transitions. [2022-07-22 17:56:51,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 25160 states and 40154 transitions. [2022-07-22 17:56:51,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:56:51,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:56:51,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:56:51,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 17:56:51,359 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:56:51,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:56:51,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2106156411, now seen corresponding path program 1 times [2022-07-22 17:56:51,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:56:51,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886787288] [2022-07-22 17:56:51,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:56:51,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:56:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:51,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:56:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:51,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:56:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:56:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:51,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:56:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:51,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:56:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:56:51,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:56:51,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:56:51,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886787288] [2022-07-22 17:56:51,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886787288] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:56:51,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:56:51,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:56:51,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163287306] [2022-07-22 17:56:51,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:56:51,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:56:51,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:56:51,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:56:51,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:56:51,518 INFO L87 Difference]: Start difference. First operand 25160 states and 40154 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:56:57,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:56:57,592 INFO L93 Difference]: Finished difference Result 59663 states and 96535 transitions. [2022-07-22 17:56:57,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 17:56:57,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-07-22 17:56:57,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:56:57,743 INFO L225 Difference]: With dead ends: 59663 [2022-07-22 17:56:57,743 INFO L226 Difference]: Without dead ends: 34525 [2022-07-22 17:56:57,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-22 17:56:57,808 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 1448 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:56:57,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 1524 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-22 17:56:57,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34525 states. [2022-07-22 17:57:00,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34525 to 25160. [2022-07-22 17:57:00,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25160 states, 23360 states have (on average 1.5637842465753424) internal successors, (36530), 23425 states have internal predecessors, (36530), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 448 states have return successors, (2208), 1414 states have call predecessors, (2208), 1351 states have call successors, (2208) [2022-07-22 17:57:00,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25160 states to 25160 states and 40089 transitions. [2022-07-22 17:57:00,627 INFO L78 Accepts]: Start accepts. Automaton has 25160 states and 40089 transitions. Word has length 195 [2022-07-22 17:57:00,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:57:00,628 INFO L495 AbstractCegarLoop]: Abstraction has 25160 states and 40089 transitions. [2022-07-22 17:57:00,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:57:00,628 INFO L276 IsEmpty]: Start isEmpty. Operand 25160 states and 40089 transitions. [2022-07-22 17:57:00,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:57:00,639 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:57:00,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:57:00,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 17:57:00,640 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:57:00,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:57:00,641 INFO L85 PathProgramCache]: Analyzing trace with hash -784941699, now seen corresponding path program 1 times [2022-07-22 17:57:00,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:57:00,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765395744] [2022-07-22 17:57:00,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:57:00,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:57:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:00,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:57:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:00,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:57:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:00,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:57:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:00,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:57:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:00,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:57:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:00,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:57:00,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:57:00,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765395744] [2022-07-22 17:57:00,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765395744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:57:00,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:57:00,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:57:00,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064805943] [2022-07-22 17:57:00,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:57:00,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:57:00,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:57:00,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:57:00,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:57:00,811 INFO L87 Difference]: Start difference. First operand 25160 states and 40089 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:57:20,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:57:20,920 INFO L93 Difference]: Finished difference Result 119277 states and 189930 transitions. [2022-07-22 17:57:20,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 17:57:20,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-07-22 17:57:20,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:57:21,285 INFO L225 Difference]: With dead ends: 119277 [2022-07-22 17:57:21,285 INFO L226 Difference]: Without dead ends: 94141 [2022-07-22 17:57:21,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-07-22 17:57:21,383 INFO L413 NwaCegarLoop]: 1019 mSDtfsCounter, 2740 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 3296 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2774 SdHoareTripleChecker+Valid, 3030 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 3296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-22 17:57:21,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2774 Valid, 3030 Invalid, 3397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 3296 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-22 17:57:21,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94141 states. [2022-07-22 17:57:27,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94141 to 50569. [2022-07-22 17:57:27,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50569 states, 46977 states have (on average 1.5623815909913361) internal successors, (73396), 47106 states have internal predecessors, (73396), 2695 states have call successors, (2695), 768 states have call predecessors, (2695), 896 states have return successors, (5138), 2822 states have call predecessors, (5138), 2695 states have call successors, (5138) [2022-07-22 17:57:27,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50569 states to 50569 states and 81229 transitions. [2022-07-22 17:57:27,790 INFO L78 Accepts]: Start accepts. Automaton has 50569 states and 81229 transitions. Word has length 195 [2022-07-22 17:57:27,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:57:27,790 INFO L495 AbstractCegarLoop]: Abstraction has 50569 states and 81229 transitions. [2022-07-22 17:57:27,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:57:27,791 INFO L276 IsEmpty]: Start isEmpty. Operand 50569 states and 81229 transitions. [2022-07-22 17:57:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:57:27,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:57:27,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:57:27,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 17:57:27,808 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:57:27,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:57:27,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1570939589, now seen corresponding path program 1 times [2022-07-22 17:57:27,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:57:27,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729585099] [2022-07-22 17:57:27,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:57:27,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:57:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:27,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:57:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:28,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:57:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:28,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:57:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:57:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:28,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:57:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:28,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:57:28,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:57:28,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729585099] [2022-07-22 17:57:28,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729585099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:57:28,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:57:28,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:57:28,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905875512] [2022-07-22 17:57:28,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:57:28,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:57:28,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:57:28,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:57:28,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:57:28,135 INFO L87 Difference]: Start difference. First operand 50569 states and 81229 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:57:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:57:39,820 INFO L93 Difference]: Finished difference Result 119249 states and 194479 transitions. [2022-07-22 17:57:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 17:57:39,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-07-22 17:57:39,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:57:40,014 INFO L225 Difference]: With dead ends: 119249 [2022-07-22 17:57:40,014 INFO L226 Difference]: Without dead ends: 68702 [2022-07-22 17:57:40,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-22 17:57:40,118 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 1258 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:57:40,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 1736 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:57:40,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68702 states. [2022-07-22 17:57:46,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68702 to 50569. [2022-07-22 17:57:46,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50569 states, 46977 states have (on average 1.5596355663409753) internal successors, (73267), 47106 states have internal predecessors, (73267), 2695 states have call successors, (2695), 768 states have call predecessors, (2695), 896 states have return successors, (5138), 2822 states have call predecessors, (5138), 2695 states have call successors, (5138) [2022-07-22 17:57:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50569 states to 50569 states and 81100 transitions. [2022-07-22 17:57:46,341 INFO L78 Accepts]: Start accepts. Automaton has 50569 states and 81100 transitions. Word has length 195 [2022-07-22 17:57:46,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:57:46,341 INFO L495 AbstractCegarLoop]: Abstraction has 50569 states and 81100 transitions. [2022-07-22 17:57:46,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 17:57:46,342 INFO L276 IsEmpty]: Start isEmpty. Operand 50569 states and 81100 transitions. [2022-07-22 17:57:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:57:46,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:57:46,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:57:46,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 17:57:46,360 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:57:46,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:57:46,360 INFO L85 PathProgramCache]: Analyzing trace with hash -903557699, now seen corresponding path program 1 times [2022-07-22 17:57:46,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:57:46,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222207349] [2022-07-22 17:57:46,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:57:46,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:57:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:57:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:46,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:57:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:46,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:57:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:46,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:57:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:46,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:57:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:57:46,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:57:46,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:57:46,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222207349] [2022-07-22 17:57:46,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222207349] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:57:46,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:57:46,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:57:46,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775013148] [2022-07-22 17:57:46,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:57:46,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:57:46,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:57:46,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:57:46,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:57:46,526 INFO L87 Difference]: Start difference. First operand 50569 states and 81100 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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)