./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 f4b24e32 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-?-f4b24e3 [2022-07-13 18:17:41,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:17:41,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:17:41,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:17:41,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:17:41,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:17:41,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:17:41,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:17:41,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:17:41,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:17:41,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:17:41,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:17:41,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:17:41,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:17:41,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:17:41,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:17:41,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:17:41,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:17:41,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:17:41,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:17:41,971 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:17:41,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:17:41,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:17:41,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:17:41,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:17:41,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:17:41,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:17:41,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:17:41,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:17:41,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:17:41,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:17:41,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:17:41,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:17:41,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:17:41,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:17:41,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:17:41,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:17:41,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:17:41,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:17:41,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:17:41,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:17:41,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:17:41,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:17:42,015 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:17:42,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:17:42,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:17:42,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:17:42,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:17:42,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:17:42,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:17:42,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:17:42,019 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:17:42,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:17:42,020 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:17:42,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:17:42,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:17:42,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:17:42,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:17:42,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:17:42,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:17:42,021 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:17:42,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:17:42,022 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:17:42,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:17:42,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:17:42,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:17:42,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:17:42,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:17:42,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:17:42,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:17:42,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:17:42,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:17:42,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:17:42,024 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:17:42,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:17:42,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:17:42,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45519c8273c53879cf6a170ed74d5bc0be814b1f3243ce6c30d1d3efe9a3cf32 [2022-07-13 18:17:42,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:17:42,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:17:42,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:17:42,264 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:17:42,265 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:17:42,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.16.cil.c [2022-07-13 18:17:42,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1aed264/a008615249984d56bee8231d2ef7c088/FLAG7af8be45e [2022-07-13 18:17:42,756 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:17:42,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c [2022-07-13 18:17:42,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1aed264/a008615249984d56bee8231d2ef7c088/FLAG7af8be45e [2022-07-13 18:17:43,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1aed264/a008615249984d56bee8231d2ef7c088 [2022-07-13 18:17:43,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:17:43,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:17:43,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:17:43,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:17:43,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:17:43,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f508fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43, skipping insertion in model container [2022-07-13 18:17:43,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:17:43,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:17:43,343 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] [2022-07-13 18:17:43,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:17:43,480 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:17:43,490 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] [2022-07-13 18:17:43,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:17:43,587 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:17:43,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43 WrapperNode [2022-07-13 18:17:43,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:17:43,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:17:43,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:17:43,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:17:43,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,672 INFO L137 Inliner]: procedures = 56, calls = 71, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 945 [2022-07-13 18:17:43,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:17:43,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:17:43,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:17:43,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:17:43,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:17:43,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:17:43,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:17:43,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:17:43,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43" (1/1) ... [2022-07-13 18:17:43,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:17:43,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:17:43,822 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) [2022-07-13 18:17:43,907 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 [2022-07-13 18:17:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:17:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-13 18:17:43,967 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-13 18:17:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-13 18:17:43,967 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-13 18:17:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-13 18:17:43,968 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-13 18:17:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-13 18:17:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-13 18:17:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-13 18:17:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-13 18:17:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-13 18:17:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-13 18:17:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:17:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:17:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:17:44,123 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:17:44,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:17:44,708 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:17:44,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:17:44,721 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-07-13 18:17:44,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:17:44 BoogieIcfgContainer [2022-07-13 18:17:44,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:17:44,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:17:44,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:17:44,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:17:44,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:17:43" (1/3) ... [2022-07-13 18:17:44,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78514cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:17:44, skipping insertion in model container [2022-07-13 18:17:44,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:43" (2/3) ... [2022-07-13 18:17:44,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78514cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:17:44, skipping insertion in model container [2022-07-13 18:17:44,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:17:44" (3/3) ... [2022-07-13 18:17:44,730 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2022-07-13 18:17:44,740 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:17:44,741 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 18:17:44,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:17:44,806 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@368f8bfa, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@42986d8 [2022-07-13 18:17:44,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 18:17:44,814 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) [2022-07-13 18:17:44,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:17:44,842 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:44,843 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] [2022-07-13 18:17:44,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:44,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:44,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1676637755, now seen corresponding path program 1 times [2022-07-13 18:17:44,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:44,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751767631] [2022-07-13 18:17:44,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:44,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:17:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:17:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:17:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:17:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:45,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:45,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751767631] [2022-07-13 18:17:45,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751767631] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:45,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:45,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 18:17:45,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994179266] [2022-07-13 18:17:45,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:45,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:17:45,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:45,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:17:45,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:17:45,404 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) [2022-07-13 18:17:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:17:47,214 INFO L93 Difference]: Finished difference Result 1001 states and 1674 transitions. [2022-07-13 18:17:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 18:17:47,217 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 [2022-07-13 18:17:47,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:17:47,231 INFO L225 Difference]: With dead ends: 1001 [2022-07-13 18:17:47,231 INFO L226 Difference]: Without dead ends: 581 [2022-07-13 18:17:47,238 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 [2022-07-13 18:17:47,241 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 1166 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 18:17:47,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 1177 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 18:17:47,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-07-13 18:17:47,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 419. [2022-07-13 18:17:47,313 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) [2022-07-13 18:17:47,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 662 transitions. [2022-07-13 18:17:47,318 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 662 transitions. Word has length 195 [2022-07-13 18:17:47,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:17:47,318 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 662 transitions. [2022-07-13 18:17:47,319 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) [2022-07-13 18:17:47,319 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 662 transitions. [2022-07-13 18:17:47,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:17:47,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:47,322 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] [2022-07-13 18:17:47,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 18:17:47,322 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:47,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:47,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1924605949, now seen corresponding path program 1 times [2022-07-13 18:17:47,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:47,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9293057] [2022-07-13 18:17:47,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:47,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:47,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:47,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:17:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:47,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:17:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:47,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:17:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:47,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:17:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:47,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:47,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:47,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9293057] [2022-07-13 18:17:47,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9293057] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:47,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:47,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 18:17:47,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720487543] [2022-07-13 18:17:47,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:47,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:17:47,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:47,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:17:47,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:17:47,484 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) [2022-07-13 18:17:48,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:17:48,922 INFO L93 Difference]: Finished difference Result 984 states and 1574 transitions. [2022-07-13 18:17:48,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 18:17:48,923 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 [2022-07-13 18:17:48,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:17:48,927 INFO L225 Difference]: With dead ends: 984 [2022-07-13 18:17:48,927 INFO L226 Difference]: Without dead ends: 581 [2022-07-13 18:17:48,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 18:17:48,929 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 1153 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 18:17:48,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 1163 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 18:17:48,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-07-13 18:17:48,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 419. [2022-07-13 18:17:48,956 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) [2022-07-13 18:17:48,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 661 transitions. [2022-07-13 18:17:48,959 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 661 transitions. Word has length 195 [2022-07-13 18:17:48,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:17:48,959 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 661 transitions. [2022-07-13 18:17:48,960 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) [2022-07-13 18:17:48,960 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 661 transitions. [2022-07-13 18:17:48,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:17:48,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:48,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:17:48,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 18:17:48,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:48,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:48,963 INFO L85 PathProgramCache]: Analyzing trace with hash -404374593, now seen corresponding path program 1 times [2022-07-13 18:17:48,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:48,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100581013] [2022-07-13 18:17:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:48,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:49,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:49,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:17:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:49,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:17:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:49,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:17:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:49,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:17:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:49,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:49,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:49,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100581013] [2022-07-13 18:17:49,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100581013] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:49,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:49,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:17:49,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429886637] [2022-07-13 18:17:49,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:49,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:17:49,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:49,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:17:49,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:17:49,220 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) [2022-07-13 18:17:51,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:17:51,288 INFO L93 Difference]: Finished difference Result 1007 states and 1621 transitions. [2022-07-13 18:17:51,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 18:17:51,289 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 [2022-07-13 18:17:51,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:17:51,293 INFO L225 Difference]: With dead ends: 1007 [2022-07-13 18:17:51,294 INFO L226 Difference]: Without dead ends: 610 [2022-07-13 18:17:51,296 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 [2022-07-13 18:17:51,301 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 1256 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 18:17:51,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 1774 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 18:17:51,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-07-13 18:17:51,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 419. [2022-07-13 18:17:51,335 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) [2022-07-13 18:17:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 660 transitions. [2022-07-13 18:17:51,338 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 660 transitions. Word has length 195 [2022-07-13 18:17:51,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:17:51,338 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 660 transitions. [2022-07-13 18:17:51,339 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) [2022-07-13 18:17:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 660 transitions. [2022-07-13 18:17:51,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:17:51,341 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:51,341 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] [2022-07-13 18:17:51,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 18:17:51,342 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:51,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:51,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1907472899, now seen corresponding path program 1 times [2022-07-13 18:17:51,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:51,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038796772] [2022-07-13 18:17:51,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:51,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:17:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:17:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:17:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:17:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:51,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:51,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038796772] [2022-07-13 18:17:51,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038796772] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:51,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:51,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:17:51,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170503842] [2022-07-13 18:17:51,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:51,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:17:51,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:51,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:17:51,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:17:51,536 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) [2022-07-13 18:17:55,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:17:55,862 INFO L93 Difference]: Finished difference Result 1998 states and 3199 transitions. [2022-07-13 18:17:55,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:17:55,863 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 [2022-07-13 18:17:55,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:17:55,870 INFO L225 Difference]: With dead ends: 1998 [2022-07-13 18:17:55,871 INFO L226 Difference]: Without dead ends: 1601 [2022-07-13 18:17:55,873 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 [2022-07-13 18:17:55,879 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 2662 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3621 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s 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, 3.4s IncrementalHoareTripleChecker+Time [2022-07-13 18:17:55,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2696 Valid, 3214 Invalid, 3711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 3621 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-13 18:17:55,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-07-13 18:17:55,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 841. [2022-07-13 18:17:55,966 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) [2022-07-13 18:17:55,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1338 transitions. [2022-07-13 18:17:55,970 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1338 transitions. Word has length 195 [2022-07-13 18:17:55,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:17:55,971 INFO L495 AbstractCegarLoop]: Abstraction has 841 states and 1338 transitions. [2022-07-13 18:17:55,971 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) [2022-07-13 18:17:55,971 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1338 transitions. [2022-07-13 18:17:55,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:17:55,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:55,977 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] [2022-07-13 18:17:55,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 18:17:55,977 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:55,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:55,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1817412609, now seen corresponding path program 1 times [2022-07-13 18:17:55,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:55,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841106489] [2022-07-13 18:17:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:55,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:56,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:56,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:17:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:56,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:17:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:56,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:17:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:56,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:17:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:56,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:56,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841106489] [2022-07-13 18:17:56,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841106489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:56,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:56,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:17:56,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50528486] [2022-07-13 18:17:56,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:56,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:17:56,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:56,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:17:56,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:17:56,191 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) [2022-07-13 18:18:00,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:00,438 INFO L93 Difference]: Finished difference Result 3894 states and 6207 transitions. [2022-07-13 18:18:00,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:18:00,439 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 [2022-07-13 18:18:00,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:00,457 INFO L225 Difference]: With dead ends: 3894 [2022-07-13 18:18:00,458 INFO L226 Difference]: Without dead ends: 3077 [2022-07-13 18:18:00,463 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 [2022-07-13 18:18:00,464 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 2719 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 3422 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 3.2s IncrementalHoareTripleChecker+Time [2022-07-13 18:18:00,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2753 Valid, 3048 Invalid, 3519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3422 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-13 18:18:00,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-07-13 18:18:00,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1620. [2022-07-13 18:18:00,596 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) [2022-07-13 18:18:00,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2567 transitions. [2022-07-13 18:18:00,606 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2567 transitions. Word has length 195 [2022-07-13 18:18:00,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:00,606 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 2567 transitions. [2022-07-13 18:18:00,607 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) [2022-07-13 18:18:00,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2567 transitions. [2022-07-13 18:18:00,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:18:00,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:00,609 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] [2022-07-13 18:18:00,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 18:18:00,609 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:00,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:00,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1787723197, now seen corresponding path program 1 times [2022-07-13 18:18:00,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:00,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440711021] [2022-07-13 18:18:00,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:00,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:00,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:00,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:18:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:00,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:18:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:00,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:18:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:00,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:18:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:00,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:00,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440711021] [2022-07-13 18:18:00,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440711021] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:00,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:00,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:00,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644705023] [2022-07-13 18:18:00,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:00,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:00,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:00,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:00,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:00,784 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) [2022-07-13 18:18:05,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:05,380 INFO L93 Difference]: Finished difference Result 7623 states and 12108 transitions. [2022-07-13 18:18:05,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:18:05,381 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 [2022-07-13 18:18:05,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:05,411 INFO L225 Difference]: With dead ends: 7623 [2022-07-13 18:18:05,412 INFO L226 Difference]: Without dead ends: 6027 [2022-07-13 18:18:05,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-07-13 18:18:05,422 INFO L413 NwaCegarLoop]: 1114 mSDtfsCounter, 2663 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3603 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.3s IncrementalHoareTripleChecker+Time [2022-07-13 18:18:05,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 3203 Invalid, 3696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3603 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-13 18:18:05,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2022-07-13 18:18:05,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3181. [2022-07-13 18:18:05,709 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) [2022-07-13 18:18:05,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 5035 transitions. [2022-07-13 18:18:05,719 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 5035 transitions. Word has length 195 [2022-07-13 18:18:05,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:05,720 INFO L495 AbstractCegarLoop]: Abstraction has 3181 states and 5035 transitions. [2022-07-13 18:18:05,720 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) [2022-07-13 18:18:05,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 5035 transitions. [2022-07-13 18:18:05,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:18:05,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:05,722 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] [2022-07-13 18:18:05,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 18:18:05,723 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:05,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:05,723 INFO L85 PathProgramCache]: Analyzing trace with hash 379997247, now seen corresponding path program 1 times [2022-07-13 18:18:05,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:05,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588645059] [2022-07-13 18:18:05,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:05,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:05,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:18:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:18:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:05,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:18:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:05,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:18:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:05,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:05,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588645059] [2022-07-13 18:18:05,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588645059] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:05,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:05,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:05,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022146049] [2022-07-13 18:18:05,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:05,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:05,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:05,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:05,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:05,876 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) [2022-07-13 18:18:11,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:11,099 INFO L93 Difference]: Finished difference Result 15080 states and 23926 transitions. [2022-07-13 18:18:11,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:18:11,099 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 [2022-07-13 18:18:11,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:11,164 INFO L225 Difference]: With dead ends: 15080 [2022-07-13 18:18:11,165 INFO L226 Difference]: Without dead ends: 11923 [2022-07-13 18:18:11,179 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 [2022-07-13 18:18:11,181 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 [2022-07-13 18:18:11,181 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] [2022-07-13 18:18:11,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11923 states. [2022-07-13 18:18:11,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11923 to 6310. [2022-07-13 18:18:11,730 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) [2022-07-13 18:18:11,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 9999 transitions. [2022-07-13 18:18:11,747 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 9999 transitions. Word has length 195 [2022-07-13 18:18:11,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:11,747 INFO L495 AbstractCegarLoop]: Abstraction has 6310 states and 9999 transitions. [2022-07-13 18:18:11,747 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) [2022-07-13 18:18:11,748 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 9999 transitions. [2022-07-13 18:18:11,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:18:11,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:11,751 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] [2022-07-13 18:18:11,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 18:18:11,751 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:11,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:11,752 INFO L85 PathProgramCache]: Analyzing trace with hash 888776061, now seen corresponding path program 1 times [2022-07-13 18:18:11,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:11,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497445977] [2022-07-13 18:18:11,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:11,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:11,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:11,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:18:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:11,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:18:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:18:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:18:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:11,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:11,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:11,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497445977] [2022-07-13 18:18:11,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497445977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:11,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:11,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:11,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497331] [2022-07-13 18:18:11,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:11,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:11,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:11,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:11,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:11,932 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) [2022-07-13 18:18:18,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:18,817 INFO L93 Difference]: Finished difference Result 29993 states and 47620 transitions. [2022-07-13 18:18:18,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:18:18,818 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 [2022-07-13 18:18:18,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:18,919 INFO L225 Difference]: With dead ends: 29993 [2022-07-13 18:18:18,919 INFO L226 Difference]: Without dead ends: 23707 [2022-07-13 18:18:18,955 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 [2022-07-13 18:18:18,956 INFO L413 NwaCegarLoop]: 1108 mSDtfsCounter, 2663 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3591 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 3.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:18:18,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 3197 Invalid, 3684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3591 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-13 18:18:18,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23707 states. [2022-07-13 18:18:20,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23707 to 12583. [2022-07-13 18:18:20,536 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) [2022-07-13 18:18:20,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12583 states to 12583 states and 20003 transitions. [2022-07-13 18:18:20,571 INFO L78 Accepts]: Start accepts. Automaton has 12583 states and 20003 transitions. Word has length 195 [2022-07-13 18:18:20,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:20,572 INFO L495 AbstractCegarLoop]: Abstraction has 12583 states and 20003 transitions. [2022-07-13 18:18:20,573 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) [2022-07-13 18:18:20,573 INFO L276 IsEmpty]: Start isEmpty. Operand 12583 states and 20003 transitions. [2022-07-13 18:18:20,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:18:20,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:20,579 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] [2022-07-13 18:18:20,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 18:18:20,579 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:20,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:20,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1034474369, now seen corresponding path program 1 times [2022-07-13 18:18:20,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:20,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283103986] [2022-07-13 18:18:20,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:20,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:20,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:20,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:18:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:20,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:18:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:20,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:18:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:20,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:18:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:20,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:20,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283103986] [2022-07-13 18:18:20,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283103986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:20,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:20,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:20,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191728457] [2022-07-13 18:18:20,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:20,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:20,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:20,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:20,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:20,721 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) [2022-07-13 18:18:31,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:31,789 INFO L93 Difference]: Finished difference Result 59818 states and 95198 transitions. [2022-07-13 18:18:31,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:18:31,790 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 [2022-07-13 18:18:31,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:31,991 INFO L225 Difference]: With dead ends: 59818 [2022-07-13 18:18:31,992 INFO L226 Difference]: Without dead ends: 47259 [2022-07-13 18:18:32,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-07-13 18:18:32,068 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 [2022-07-13 18:18:32,069 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] [2022-07-13 18:18:32,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47259 states. [2022-07-13 18:18:34,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47259 to 25160. [2022-07-13 18:18:34,867 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) [2022-07-13 18:18:34,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25160 states to 25160 states and 40219 transitions. [2022-07-13 18:18:34,942 INFO L78 Accepts]: Start accepts. Automaton has 25160 states and 40219 transitions. Word has length 195 [2022-07-13 18:18:34,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:34,943 INFO L495 AbstractCegarLoop]: Abstraction has 25160 states and 40219 transitions. [2022-07-13 18:18:34,943 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) [2022-07-13 18:18:34,943 INFO L276 IsEmpty]: Start isEmpty. Operand 25160 states and 40219 transitions. [2022-07-13 18:18:34,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:18:34,954 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:34,954 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] [2022-07-13 18:18:34,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 18:18:34,955 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:34,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:34,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1535884605, now seen corresponding path program 1 times [2022-07-13 18:18:34,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:34,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786953280] [2022-07-13 18:18:34,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:34,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:35,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:35,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:18:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:35,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:18:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:35,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:18:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:35,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:18:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:35,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:35,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:35,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786953280] [2022-07-13 18:18:35,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786953280] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:35,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:35,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:35,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279424390] [2022-07-13 18:18:35,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:35,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:35,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:35,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:35,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:35,137 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) [2022-07-13 18:18:41,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:41,102 INFO L93 Difference]: Finished difference Result 59727 states and 96857 transitions. [2022-07-13 18:18:41,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 18:18:41,102 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 [2022-07-13 18:18:41,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:41,245 INFO L225 Difference]: With dead ends: 59727 [2022-07-13 18:18:41,246 INFO L226 Difference]: Without dead ends: 34589 [2022-07-13 18:18:41,300 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 [2022-07-13 18:18:41,300 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 [2022-07-13 18:18:41,302 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] [2022-07-13 18:18:41,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34589 states. [2022-07-13 18:18:43,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34589 to 25160. [2022-07-13 18:18:43,695 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) [2022-07-13 18:18:43,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25160 states to 25160 states and 40154 transitions. [2022-07-13 18:18:43,765 INFO L78 Accepts]: Start accepts. Automaton has 25160 states and 40154 transitions. Word has length 195 [2022-07-13 18:18:43,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:43,766 INFO L495 AbstractCegarLoop]: Abstraction has 25160 states and 40154 transitions. [2022-07-13 18:18:43,766 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) [2022-07-13 18:18:43,766 INFO L276 IsEmpty]: Start isEmpty. Operand 25160 states and 40154 transitions. [2022-07-13 18:18:43,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:18:43,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:43,775 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] [2022-07-13 18:18:43,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 18:18:43,775 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:43,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:43,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2106156411, now seen corresponding path program 1 times [2022-07-13 18:18:43,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:43,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838382517] [2022-07-13 18:18:43,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:43,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:43,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:43,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:18:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:43,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:18:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:43,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:18:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:43,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:18:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:43,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:43,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:43,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838382517] [2022-07-13 18:18:43,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838382517] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:43,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:43,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:43,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149469064] [2022-07-13 18:18:43,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:43,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:43,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:43,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:43,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:43,921 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) [2022-07-13 18:18:49,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:49,528 INFO L93 Difference]: Finished difference Result 59663 states and 96535 transitions. [2022-07-13 18:18:49,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 18:18:49,538 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 [2022-07-13 18:18:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:49,663 INFO L225 Difference]: With dead ends: 59663 [2022-07-13 18:18:49,664 INFO L226 Difference]: Without dead ends: 34525 [2022-07-13 18:18:49,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 18:18:49,722 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 [2022-07-13 18:18:49,722 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] [2022-07-13 18:18:49,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34525 states. [2022-07-13 18:18:52,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34525 to 25160. [2022-07-13 18:18:52,382 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) [2022-07-13 18:18:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25160 states to 25160 states and 40089 transitions. [2022-07-13 18:18:52,457 INFO L78 Accepts]: Start accepts. Automaton has 25160 states and 40089 transitions. Word has length 195 [2022-07-13 18:18:52,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:52,457 INFO L495 AbstractCegarLoop]: Abstraction has 25160 states and 40089 transitions. [2022-07-13 18:18:52,457 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) [2022-07-13 18:18:52,457 INFO L276 IsEmpty]: Start isEmpty. Operand 25160 states and 40089 transitions. [2022-07-13 18:18:52,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:18:52,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:52,467 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] [2022-07-13 18:18:52,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 18:18:52,467 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:52,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:52,467 INFO L85 PathProgramCache]: Analyzing trace with hash -784941699, now seen corresponding path program 1 times [2022-07-13 18:18:52,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:52,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652519220] [2022-07-13 18:18:52,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:52,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:52,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:52,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:18:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:52,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:18:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:52,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:18:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:52,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:18:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:52,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:52,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:52,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652519220] [2022-07-13 18:18:52,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652519220] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:52,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:52,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:52,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892312400] [2022-07-13 18:18:52,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:52,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:52,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:52,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:52,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:52,590 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) [2022-07-13 18:19:11,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:19:11,805 INFO L93 Difference]: Finished difference Result 119277 states and 189930 transitions. [2022-07-13 18:19:11,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:19:11,805 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 [2022-07-13 18:19:11,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:19:12,082 INFO L225 Difference]: With dead ends: 119277 [2022-07-13 18:19:12,082 INFO L226 Difference]: Without dead ends: 94141 [2022-07-13 18:19:12,161 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 [2022-07-13 18:19:12,162 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, 2.9s IncrementalHoareTripleChecker+Time [2022-07-13 18:19:12,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2774 Valid, 3030 Invalid, 3397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 3296 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-13 18:19:12,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94141 states. [2022-07-13 18:19:18,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94141 to 50569. [2022-07-13 18:19:18,181 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) [2022-07-13 18:19:18,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50569 states to 50569 states and 81229 transitions. [2022-07-13 18:19:18,355 INFO L78 Accepts]: Start accepts. Automaton has 50569 states and 81229 transitions. Word has length 195 [2022-07-13 18:19:18,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:19:18,355 INFO L495 AbstractCegarLoop]: Abstraction has 50569 states and 81229 transitions. [2022-07-13 18:19:18,355 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) [2022-07-13 18:19:18,355 INFO L276 IsEmpty]: Start isEmpty. Operand 50569 states and 81229 transitions. [2022-07-13 18:19:18,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:19:18,369 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:19:18,369 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] [2022-07-13 18:19:18,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 18:19:18,369 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:19:18,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:19:18,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1570939589, now seen corresponding path program 1 times [2022-07-13 18:19:18,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:19:18,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672526355] [2022-07-13 18:19:18,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:19:18,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:19:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:18,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:19:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:18,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:19:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:19:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:18,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:19:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:18,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:19:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:18,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:19:18,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:19:18,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672526355] [2022-07-13 18:19:18,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672526355] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:19:18,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:19:18,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:19:18,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627008705] [2022-07-13 18:19:18,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:19:18,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:19:18,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:19:18,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:19:18,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:19:18,509 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) [2022-07-13 18:19:29,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:19:29,360 INFO L93 Difference]: Finished difference Result 119249 states and 194479 transitions. [2022-07-13 18:19:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 18:19:29,361 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 [2022-07-13 18:19:29,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:19:29,565 INFO L225 Difference]: With dead ends: 119249 [2022-07-13 18:19:29,565 INFO L226 Difference]: Without dead ends: 68702 [2022-07-13 18:19:29,668 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 [2022-07-13 18:19:29,670 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 [2022-07-13 18:19:29,670 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] [2022-07-13 18:19:29,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68702 states. [2022-07-13 18:19:35,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68702 to 50569. [2022-07-13 18:19:35,502 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) [2022-07-13 18:19:35,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50569 states to 50569 states and 81100 transitions. [2022-07-13 18:19:35,633 INFO L78 Accepts]: Start accepts. Automaton has 50569 states and 81100 transitions. Word has length 195 [2022-07-13 18:19:35,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:19:35,634 INFO L495 AbstractCegarLoop]: Abstraction has 50569 states and 81100 transitions. [2022-07-13 18:19:35,634 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) [2022-07-13 18:19:35,634 INFO L276 IsEmpty]: Start isEmpty. Operand 50569 states and 81100 transitions. [2022-07-13 18:19:35,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 18:19:35,647 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:19:35,647 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] [2022-07-13 18:19:35,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 18:19:35,648 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:19:35,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:19:35,648 INFO L85 PathProgramCache]: Analyzing trace with hash -903557699, now seen corresponding path program 1 times [2022-07-13 18:19:35,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:19:35,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368259049] [2022-07-13 18:19:35,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:19:35,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:19:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:35,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:19:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:35,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 18:19:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:35,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 18:19:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:35,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 18:19:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:35,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 18:19:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:19:35,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:19:35,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:19:35,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368259049] [2022-07-13 18:19:35,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368259049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:19:35,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:19:35,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:19:35,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293031534] [2022-07-13 18:19:35,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:19:35,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:19:35,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:19:35,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:19:35,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:19:35,777 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) [2022-07-13 18:20:15,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:20:15,465 INFO L93 Difference]: Finished difference Result 238448 states and 381622 transitions. [2022-07-13 18:20:15,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:20:15,466 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 [2022-07-13 18:20:15,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:20:16,088 INFO L225 Difference]: With dead ends: 238448 [2022-07-13 18:20:16,088 INFO L226 Difference]: Without dead ends: 187903 [2022-07-13 18:20:16,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-07-13 18:20:16,262 INFO L413 NwaCegarLoop]: 1072 mSDtfsCounter, 2697 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3407 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 3161 SdHoareTripleChecker+Invalid, 3504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 3407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-13 18:20:16,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 3161 Invalid, 3504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3407 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-13 18:20:16,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187903 states.