/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:24:57,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:24:57,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:24:57,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:24:57,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:24:57,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:24:57,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:24:57,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:24:57,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:24:57,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:24:57,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:24:57,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:24:57,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:24:57,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:24:57,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:24:57,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:24:57,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:24:57,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:24:57,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:24:57,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:24:57,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:24:57,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:24:57,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:24:57,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:24:57,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:24:57,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:24:57,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:24:57,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:24:57,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:24:57,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:24:57,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:24:57,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:24:57,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:24:57,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:24:57,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:24:57,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:24:57,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:24:57,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:24:57,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:24:57,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:24:57,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:24:57,569 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 05:24:57,597 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:24:57,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:24:57,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:24:57,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:24:57,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:24:57,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:24:57,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:24:57,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:24:57,601 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:24:57,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:24:57,602 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:24:57,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:24:57,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:24:57,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:24:57,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:24:57,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:24:57,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:24:57,603 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:24:57,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:24:57,603 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:24:57,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:24:57,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:24:57,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:24:57,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:24:57,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:24:57,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:24:57,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:24:57,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:24:57,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:24:57,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:24:57,605 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:24:57,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:24:57,605 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:24:57,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:24:57,606 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:24:57,606 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:24:57,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:24:57,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:24:57,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:24:57,863 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:24:57,864 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:24:57,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c [2023-04-02 05:24:59,136 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:24:59,353 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:24:59,354 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c [2023-04-02 05:24:59,368 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b2167956/cc7578e8299d4f0ca0c51653a0735f58/FLAG35dc09f35 [2023-04-02 05:24:59,379 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b2167956/cc7578e8299d4f0ca0c51653a0735f58 [2023-04-02 05:24:59,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:24:59,383 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:24:59,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:24:59,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:24:59,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:24:59,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:24:59" (1/1) ... [2023-04-02 05:24:59,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75159008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59, skipping insertion in model container [2023-04-02 05:24:59,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:24:59" (1/1) ... [2023-04-02 05:24:59,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:24:59,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:24:59,717 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c[14467,14480] [2023-04-02 05:24:59,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:24:59,735 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:24:59,792 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c[14467,14480] [2023-04-02 05:24:59,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:24:59,811 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:24:59,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59 WrapperNode [2023-04-02 05:24:59,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:24:59,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:24:59,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:24:59,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:24:59,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59" (1/1) ... [2023-04-02 05:24:59,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59" (1/1) ... [2023-04-02 05:24:59,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59" (1/1) ... [2023-04-02 05:24:59,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59" (1/1) ... [2023-04-02 05:24:59,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59" (1/1) ... [2023-04-02 05:24:59,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59" (1/1) ... [2023-04-02 05:24:59,889 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59" (1/1) ... [2023-04-02 05:24:59,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59" (1/1) ... [2023-04-02 05:24:59,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:24:59,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:24:59,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:24:59,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:24:59,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59" (1/1) ... [2023-04-02 05:24:59,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:24:59,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:24:59,931 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) [2023-04-02 05:24:59,952 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 [2023-04-02 05:24:59,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:24:59,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:24:59,971 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:24:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:24:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:24:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:24:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:24:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:24:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:24:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:24:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:24:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:24:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:24:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:24:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:24:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:24:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:24:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:24:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:24:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:24:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:24:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:24:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:24:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:24:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:24:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:24:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:24:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:24:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:24:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:24:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:24:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:24:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:24:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:25:00,105 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:25:00,121 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:25:00,776 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:25:00,788 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:25:00,788 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:25:00,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:25:00 BoogieIcfgContainer [2023-04-02 05:25:00,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:25:00,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:25:00,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:25:00,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:25:00,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:24:59" (1/3) ... [2023-04-02 05:25:00,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe4b42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:25:00, skipping insertion in model container [2023-04-02 05:25:00,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:59" (2/3) ... [2023-04-02 05:25:00,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe4b42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:25:00, skipping insertion in model container [2023-04-02 05:25:00,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:25:00" (3/3) ... [2023-04-02 05:25:00,803 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c [2023-04-02 05:25:00,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:25:00,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:25:00,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:25:00,873 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@358873d5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:25:00,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:25:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 141 states have (on average 1.7163120567375887) internal successors, (242), 143 states have internal predecessors, (242), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:25:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 05:25:00,887 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:00,888 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] [2023-04-02 05:25:00,909 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:00,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:00,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1428348585, now seen corresponding path program 1 times [2023-04-02 05:25:00,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:00,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787114611] [2023-04-02 05:25:00,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:00,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:01,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:01,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:25:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 05:25:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:01,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:25:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:01,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 05:25:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:01,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:25:01,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:01,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787114611] [2023-04-02 05:25:01,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787114611] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:01,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:01,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:25:01,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358929175] [2023-04-02 05:25:01,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:01,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:25:01,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:01,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:25:01,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:25:01,682 INFO L87 Difference]: Start difference. First operand has 161 states, 141 states have (on average 1.7163120567375887) internal successors, (242), 143 states have internal predecessors, (242), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:02,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:02,567 INFO L93 Difference]: Finished difference Result 257 states and 414 transitions. [2023-04-02 05:25:02,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:25:02,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2023-04-02 05:25:02,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:02,579 INFO L225 Difference]: With dead ends: 257 [2023-04-02 05:25:02,579 INFO L226 Difference]: Without dead ends: 165 [2023-04-02 05:25:02,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:25:02,585 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 484 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:02,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 39 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:25:02,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-04-02 05:25:02,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 156. [2023-04-02 05:25:02,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 138 states have (on average 1.7028985507246377) internal successors, (235), 139 states have internal predecessors, (235), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-04-02 05:25:02,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 252 transitions. [2023-04-02 05:25:02,646 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 252 transitions. Word has length 65 [2023-04-02 05:25:02,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:02,647 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 252 transitions. [2023-04-02 05:25:02,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:02,647 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 252 transitions. [2023-04-02 05:25:02,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 05:25:02,649 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:02,649 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] [2023-04-02 05:25:02,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:25:02,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:02,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:02,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1837259413, now seen corresponding path program 1 times [2023-04-02 05:25:02,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:02,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832059449] [2023-04-02 05:25:02,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:02,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:02,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:02,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:03,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:25:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:03,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 05:25:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:03,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:25:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:03,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 05:25:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:03,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:03,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:25:03,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:03,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832059449] [2023-04-02 05:25:03,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832059449] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:03,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:03,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:25:03,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687527239] [2023-04-02 05:25:03,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:03,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:25:03,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:03,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:25:03,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:25:03,175 INFO L87 Difference]: Start difference. First operand 156 states and 252 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:05,120 INFO L93 Difference]: Finished difference Result 255 states and 406 transitions. [2023-04-02 05:25:05,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 05:25:05,120 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2023-04-02 05:25:05,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:05,123 INFO L225 Difference]: With dead ends: 255 [2023-04-02 05:25:05,123 INFO L226 Difference]: Without dead ends: 165 [2023-04-02 05:25:05,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:25:05,125 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 323 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:05,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 122 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:25:05,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-04-02 05:25:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 156. [2023-04-02 05:25:05,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 138 states have (on average 1.4855072463768115) internal successors, (205), 139 states have internal predecessors, (205), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-04-02 05:25:05,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 222 transitions. [2023-04-02 05:25:05,167 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 222 transitions. Word has length 65 [2023-04-02 05:25:05,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:05,168 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 222 transitions. [2023-04-02 05:25:05,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:05,168 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 222 transitions. [2023-04-02 05:25:05,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 05:25:05,176 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:05,176 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] [2023-04-02 05:25:05,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:25:05,176 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:05,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:05,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1239721067, now seen corresponding path program 1 times [2023-04-02 05:25:05,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:05,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593035091] [2023-04-02 05:25:05,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:05,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:05,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:05,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:05,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:05,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:05,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:25:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:05,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:25:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:25:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:05,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:25:05,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:05,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593035091] [2023-04-02 05:25:05,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593035091] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:05,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:05,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:25:05,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098629207] [2023-04-02 05:25:05,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:05,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:25:05,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:05,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:25:05,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:25:05,859 INFO L87 Difference]: Start difference. First operand 156 states and 222 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 9 states have internal predecessors, (78), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:11,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:11,467 INFO L93 Difference]: Finished difference Result 981 states and 1535 transitions. [2023-04-02 05:25:11,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-04-02 05:25:11,468 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 9 states have internal predecessors, (78), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 94 [2023-04-02 05:25:11,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:11,475 INFO L225 Difference]: With dead ends: 981 [2023-04-02 05:25:11,475 INFO L226 Difference]: Without dead ends: 897 [2023-04-02 05:25:11,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1049 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=724, Invalid=2816, Unknown=0, NotChecked=0, Total=3540 [2023-04-02 05:25:11,479 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1975 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 3213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:11,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1984 Valid, 165 Invalid, 3213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-02 05:25:11,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2023-04-02 05:25:11,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 562. [2023-04-02 05:25:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 488 states have (on average 1.5819672131147542) internal successors, (772), 495 states have internal predecessors, (772), 34 states have call successors, (34), 34 states have call predecessors, (34), 39 states have return successors, (55), 33 states have call predecessors, (55), 33 states have call successors, (55) [2023-04-02 05:25:11,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 861 transitions. [2023-04-02 05:25:11,598 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 861 transitions. Word has length 94 [2023-04-02 05:25:11,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:11,602 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 861 transitions. [2023-04-02 05:25:11,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 9 states have internal predecessors, (78), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:11,603 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 861 transitions. [2023-04-02 05:25:11,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 05:25:11,611 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:11,611 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] [2023-04-02 05:25:11,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:25:11,612 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:11,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:11,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2076286244, now seen corresponding path program 1 times [2023-04-02 05:25:11,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:11,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412320342] [2023-04-02 05:25:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:11,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:11,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:12,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:12,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:12,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:25:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:12,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:25:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:12,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:25:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:12,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:25:12,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:12,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412320342] [2023-04-02 05:25:12,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412320342] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:12,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:12,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:25:12,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143311175] [2023-04-02 05:25:12,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:12,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:25:12,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:12,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:25:12,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:25:12,166 INFO L87 Difference]: Start difference. First operand 562 states and 861 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:15,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:15,367 INFO L93 Difference]: Finished difference Result 1902 states and 2973 transitions. [2023-04-02 05:25:15,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:25:15,369 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 95 [2023-04-02 05:25:15,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:15,378 INFO L225 Difference]: With dead ends: 1902 [2023-04-02 05:25:15,378 INFO L226 Difference]: Without dead ends: 1412 [2023-04-02 05:25:15,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:25:15,383 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1208 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:15,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 104 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1942 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-02 05:25:15,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2023-04-02 05:25:15,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1263. [2023-04-02 05:25:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1085 states have (on average 1.583410138248848) internal successors, (1718), 1106 states have internal predecessors, (1718), 79 states have call successors, (79), 79 states have call predecessors, (79), 98 states have return successors, (150), 78 states have call predecessors, (150), 78 states have call successors, (150) [2023-04-02 05:25:15,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1947 transitions. [2023-04-02 05:25:15,510 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1947 transitions. Word has length 95 [2023-04-02 05:25:15,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:15,511 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 1947 transitions. [2023-04-02 05:25:15,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:15,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1947 transitions. [2023-04-02 05:25:15,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 05:25:15,513 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:15,513 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] [2023-04-02 05:25:15,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:25:15,513 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:15,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:15,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1741612844, now seen corresponding path program 1 times [2023-04-02 05:25:15,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:15,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798614441] [2023-04-02 05:25:15,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:15,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:15,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:15,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:15,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:25:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:16,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:25:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:16,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:25:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:25:16,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:16,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798614441] [2023-04-02 05:25:16,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798614441] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:16,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:16,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:25:16,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381207971] [2023-04-02 05:25:16,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:16,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:25:16,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:16,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:25:16,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:25:16,033 INFO L87 Difference]: Start difference. First operand 1263 states and 1947 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:19,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:19,619 INFO L93 Difference]: Finished difference Result 7830 states and 12282 transitions. [2023-04-02 05:25:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:25:19,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 96 [2023-04-02 05:25:19,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:19,659 INFO L225 Difference]: With dead ends: 7830 [2023-04-02 05:25:19,659 INFO L226 Difference]: Without dead ends: 6639 [2023-04-02 05:25:19,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:25:19,672 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1350 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:19,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 111 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 05:25:19,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6639 states. [2023-04-02 05:25:20,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6639 to 5926. [2023-04-02 05:25:20,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5053 states have (on average 1.58242628141698) internal successors, (7996), 5169 states have internal predecessors, (7996), 379 states have call successors, (379), 379 states have call predecessors, (379), 493 states have return successors, (819), 378 states have call predecessors, (819), 378 states have call successors, (819) [2023-04-02 05:25:20,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 9194 transitions. [2023-04-02 05:25:20,372 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 9194 transitions. Word has length 96 [2023-04-02 05:25:20,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:20,372 INFO L495 AbstractCegarLoop]: Abstraction has 5926 states and 9194 transitions. [2023-04-02 05:25:20,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:20,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 9194 transitions. [2023-04-02 05:25:20,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 05:25:20,375 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:20,375 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] [2023-04-02 05:25:20,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:25:20,376 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:20,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:20,376 INFO L85 PathProgramCache]: Analyzing trace with hash -95012901, now seen corresponding path program 1 times [2023-04-02 05:25:20,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:20,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066842079] [2023-04-02 05:25:20,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:20,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:20,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:20,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:20,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:20,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:20,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:25:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:20,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:25:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:25:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:20,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:25:20,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:20,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066842079] [2023-04-02 05:25:20,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066842079] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:20,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:20,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:25:20,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940350439] [2023-04-02 05:25:20,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:20,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:25:20,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:20,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:25:20,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:25:20,825 INFO L87 Difference]: Start difference. First operand 5926 states and 9194 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:25,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:25,286 INFO L93 Difference]: Finished difference Result 33887 states and 53053 transitions. [2023-04-02 05:25:25,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:25:25,287 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 97 [2023-04-02 05:25:25,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:25,493 INFO L225 Difference]: With dead ends: 33887 [2023-04-02 05:25:25,494 INFO L226 Difference]: Without dead ends: 28033 [2023-04-02 05:25:25,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:25:25,527 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1421 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:25,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 83 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:25:25,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28033 states. [2023-04-02 05:25:28,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28033 to 25004. [2023-04-02 05:25:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25004 states, 21208 states have (on average 1.5712466993587326) internal successors, (33323), 21787 states have internal predecessors, (33323), 1609 states have call successors, (1609), 1609 states have call predecessors, (1609), 2186 states have return successors, (3828), 1608 states have call predecessors, (3828), 1608 states have call successors, (3828) [2023-04-02 05:25:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25004 states to 25004 states and 38760 transitions. [2023-04-02 05:25:28,308 INFO L78 Accepts]: Start accepts. Automaton has 25004 states and 38760 transitions. Word has length 97 [2023-04-02 05:25:28,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:28,308 INFO L495 AbstractCegarLoop]: Abstraction has 25004 states and 38760 transitions. [2023-04-02 05:25:28,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:28,309 INFO L276 IsEmpty]: Start isEmpty. Operand 25004 states and 38760 transitions. [2023-04-02 05:25:28,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 05:25:28,312 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:28,312 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] [2023-04-02 05:25:28,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:25:28,312 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:28,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:28,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1356262783, now seen corresponding path program 1 times [2023-04-02 05:25:28,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:28,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013855161] [2023-04-02 05:25:28,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:28,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:28,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:28,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:28,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:28,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:25:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:28,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:25:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:28,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:25:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:28,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:25:28,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:28,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013855161] [2023-04-02 05:25:28,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013855161] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:28,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:28,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:25:28,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293102006] [2023-04-02 05:25:28,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:28,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:25:28,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:28,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:25:28,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:25:28,873 INFO L87 Difference]: Start difference. First operand 25004 states and 38760 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:36,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:36,279 INFO L93 Difference]: Finished difference Result 45360 states and 71028 transitions. [2023-04-02 05:25:36,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-04-02 05:25:36,280 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 98 [2023-04-02 05:25:36,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:36,430 INFO L225 Difference]: With dead ends: 45360 [2023-04-02 05:25:36,431 INFO L226 Difference]: Without dead ends: 30995 [2023-04-02 05:25:36,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1614 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=854, Invalid=3976, Unknown=0, NotChecked=0, Total=4830 [2023-04-02 05:25:36,478 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 2893 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 3894 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2906 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 4055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 3894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:36,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2906 Valid, 217 Invalid, 4055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 3894 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-02 05:25:36,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30995 states. [2023-04-02 05:25:39,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30995 to 25428. [2023-04-02 05:25:39,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25428 states, 21581 states have (on average 1.5714285714285714) internal successors, (33913), 22175 states have internal predecessors, (33913), 1627 states have call successors, (1627), 1627 states have call predecessors, (1627), 2219 states have return successors, (3872), 1626 states have call predecessors, (3872), 1626 states have call successors, (3872) [2023-04-02 05:25:39,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25428 states to 25428 states and 39412 transitions. [2023-04-02 05:25:39,131 INFO L78 Accepts]: Start accepts. Automaton has 25428 states and 39412 transitions. Word has length 98 [2023-04-02 05:25:39,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:39,132 INFO L495 AbstractCegarLoop]: Abstraction has 25428 states and 39412 transitions. [2023-04-02 05:25:39,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:39,132 INFO L276 IsEmpty]: Start isEmpty. Operand 25428 states and 39412 transitions. [2023-04-02 05:25:39,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 05:25:39,135 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:39,135 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] [2023-04-02 05:25:39,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:25:39,135 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:39,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:39,136 INFO L85 PathProgramCache]: Analyzing trace with hash 405688425, now seen corresponding path program 1 times [2023-04-02 05:25:39,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:39,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362874389] [2023-04-02 05:25:39,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:39,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:39,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:39,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:39,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:39,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:25:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:25:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:39,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:25:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:25:39,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:39,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362874389] [2023-04-02 05:25:39,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362874389] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:39,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:39,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:25:39,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184786422] [2023-04-02 05:25:39,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:39,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:25:39,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:39,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:25:39,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:25:39,613 INFO L87 Difference]: Start difference. First operand 25428 states and 39412 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:46,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:46,942 INFO L93 Difference]: Finished difference Result 42310 states and 66156 transitions. [2023-04-02 05:25:46,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-04-02 05:25:46,943 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 98 [2023-04-02 05:25:46,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:47,060 INFO L225 Difference]: With dead ends: 42310 [2023-04-02 05:25:47,061 INFO L226 Difference]: Without dead ends: 29773 [2023-04-02 05:25:47,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1474 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=815, Invalid=3741, Unknown=0, NotChecked=0, Total=4556 [2023-04-02 05:25:47,103 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 2471 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 3406 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2483 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 3538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 3406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:47,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2483 Valid, 190 Invalid, 3538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 3406 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 05:25:47,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29773 states. [2023-04-02 05:25:49,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29773 to 24838. [2023-04-02 05:25:49,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24838 states, 21086 states have (on average 1.5708526984729205) internal successors, (33123), 21677 states have internal predecessors, (33123), 1581 states have call successors, (1581), 1581 states have call predecessors, (1581), 2170 states have return successors, (3764), 1580 states have call predecessors, (3764), 1580 states have call successors, (3764) [2023-04-02 05:25:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24838 states to 24838 states and 38468 transitions. [2023-04-02 05:25:49,144 INFO L78 Accepts]: Start accepts. Automaton has 24838 states and 38468 transitions. Word has length 98 [2023-04-02 05:25:49,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:49,145 INFO L495 AbstractCegarLoop]: Abstraction has 24838 states and 38468 transitions. [2023-04-02 05:25:49,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:49,145 INFO L276 IsEmpty]: Start isEmpty. Operand 24838 states and 38468 transitions. [2023-04-02 05:25:49,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 05:25:49,151 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:49,151 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] [2023-04-02 05:25:49,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:25:49,151 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:49,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:49,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1885673471, now seen corresponding path program 1 times [2023-04-02 05:25:49,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:49,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036798292] [2023-04-02 05:25:49,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:49,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:49,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:49,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:49,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:25:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:25:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:49,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:25:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:49,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:25:49,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:49,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036798292] [2023-04-02 05:25:49,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036798292] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:49,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:49,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:25:49,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773204542] [2023-04-02 05:25:49,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:49,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:25:49,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:49,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:25:49,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:25:49,608 INFO L87 Difference]: Start difference. First operand 24838 states and 38468 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:56,128 INFO L93 Difference]: Finished difference Result 41072 states and 64032 transitions. [2023-04-02 05:25:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-04-02 05:25:56,128 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 98 [2023-04-02 05:25:56,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:56,226 INFO L225 Difference]: With dead ends: 41072 [2023-04-02 05:25:56,226 INFO L226 Difference]: Without dead ends: 27743 [2023-04-02 05:25:56,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=695, Invalid=2965, Unknown=0, NotChecked=0, Total=3660 [2023-04-02 05:25:56,264 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 2430 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 3246 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 3246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:56,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2441 Valid, 200 Invalid, 3374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 3246 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 05:25:56,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27743 states. [2023-04-02 05:25:57,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27743 to 24302. [2023-04-02 05:25:57,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24302 states, 20648 states have (on average 1.5720166602092212) internal successors, (32459), 21245 states have internal predecessors, (32459), 1529 states have call successors, (1529), 1529 states have call predecessors, (1529), 2124 states have return successors, (3662), 1528 states have call predecessors, (3662), 1528 states have call successors, (3662) [2023-04-02 05:25:58,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24302 states to 24302 states and 37650 transitions. [2023-04-02 05:25:58,014 INFO L78 Accepts]: Start accepts. Automaton has 24302 states and 37650 transitions. Word has length 98 [2023-04-02 05:25:58,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:58,014 INFO L495 AbstractCegarLoop]: Abstraction has 24302 states and 37650 transitions. [2023-04-02 05:25:58,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:58,014 INFO L276 IsEmpty]: Start isEmpty. Operand 24302 states and 37650 transitions. [2023-04-02 05:25:58,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 05:25:58,017 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:58,017 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] [2023-04-02 05:25:58,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:25:58,017 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:58,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:58,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1536506952, now seen corresponding path program 1 times [2023-04-02 05:25:58,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:58,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809277934] [2023-04-02 05:25:58,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:58,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:58,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:58,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:58,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:58,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:58,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:25:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:58,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:25:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:58,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:25:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:58,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:25:58,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:58,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809277934] [2023-04-02 05:25:58,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809277934] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:58,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:58,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:25:58,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8755317] [2023-04-02 05:25:58,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:58,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:25:58,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:58,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:25:58,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:25:58,417 INFO L87 Difference]: Start difference. First operand 24302 states and 37650 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:26:02,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:26:02,997 INFO L93 Difference]: Finished difference Result 54047 states and 84604 transitions. [2023-04-02 05:26:02,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:26:02,997 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 99 [2023-04-02 05:26:02,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:26:03,140 INFO L225 Difference]: With dead ends: 54047 [2023-04-02 05:26:03,141 INFO L226 Difference]: Without dead ends: 41982 [2023-04-02 05:26:03,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:26:03,176 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 2106 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:26:03,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 97 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:26:03,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41982 states. [2023-04-02 05:26:05,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41982 to 33562. [2023-04-02 05:26:05,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33562 states, 28517 states have (on average 1.573237016516464) internal successors, (44864), 29389 states have internal predecessors, (44864), 2087 states have call successors, (2087), 2087 states have call predecessors, (2087), 2957 states have return successors, (5001), 2086 states have call predecessors, (5001), 2086 states have call successors, (5001) [2023-04-02 05:26:05,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33562 states to 33562 states and 51952 transitions. [2023-04-02 05:26:05,648 INFO L78 Accepts]: Start accepts. Automaton has 33562 states and 51952 transitions. Word has length 99 [2023-04-02 05:26:05,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:26:05,648 INFO L495 AbstractCegarLoop]: Abstraction has 33562 states and 51952 transitions. [2023-04-02 05:26:05,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:26:05,648 INFO L276 IsEmpty]: Start isEmpty. Operand 33562 states and 51952 transitions. [2023-04-02 05:26:05,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 05:26:05,651 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:26:05,651 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] [2023-04-02 05:26:05,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:26:05,651 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:26:05,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:26:05,652 INFO L85 PathProgramCache]: Analyzing trace with hash -834907078, now seen corresponding path program 1 times [2023-04-02 05:26:05,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:26:05,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329933732] [2023-04-02 05:26:05,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:26:05,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:26:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:05,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:26:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:26:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:26:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:05,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:26:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:06,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:26:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:26:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:06,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:26:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:06,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:26:06,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:26:06,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329933732] [2023-04-02 05:26:06,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329933732] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:26:06,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:26:06,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:26:06,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567461120] [2023-04-02 05:26:06,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:26:06,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:26:06,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:26:06,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:26:06,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:26:06,058 INFO L87 Difference]: Start difference. First operand 33562 states and 51952 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:26:10,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:26:10,501 INFO L93 Difference]: Finished difference Result 59877 states and 93375 transitions. [2023-04-02 05:26:10,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:26:10,502 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 99 [2023-04-02 05:26:10,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:26:10,622 INFO L225 Difference]: With dead ends: 59877 [2023-04-02 05:26:10,623 INFO L226 Difference]: Without dead ends: 37423 [2023-04-02 05:26:10,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:26:10,665 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 1740 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:26:10,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 101 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:26:10,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37423 states. [2023-04-02 05:26:12,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37423 to 29498. [2023-04-02 05:26:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29498 states, 25065 states have (on average 1.571673648513864) internal successors, (39394), 25843 states have internal predecessors, (39394), 1828 states have call successors, (1828), 1828 states have call predecessors, (1828), 2604 states have return successors, (4367), 1827 states have call predecessors, (4367), 1827 states have call successors, (4367) [2023-04-02 05:26:12,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29498 states to 29498 states and 45589 transitions. [2023-04-02 05:26:12,798 INFO L78 Accepts]: Start accepts. Automaton has 29498 states and 45589 transitions. Word has length 99 [2023-04-02 05:26:12,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:26:12,798 INFO L495 AbstractCegarLoop]: Abstraction has 29498 states and 45589 transitions. [2023-04-02 05:26:12,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:26:12,799 INFO L276 IsEmpty]: Start isEmpty. Operand 29498 states and 45589 transitions. [2023-04-02 05:26:12,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 05:26:12,801 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:26:12,801 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] [2023-04-02 05:26:12,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:26:12,802 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:26:12,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:26:12,802 INFO L85 PathProgramCache]: Analyzing trace with hash 107322835, now seen corresponding path program 1 times [2023-04-02 05:26:12,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:26:12,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790275162] [2023-04-02 05:26:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:26:12,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:26:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:12,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:26:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:12,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:26:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:26:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:13,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:26:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:13,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:26:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:13,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:26:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:13,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:26:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:13,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:26:13,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:26:13,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790275162] [2023-04-02 05:26:13,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790275162] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:26:13,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:26:13,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:26:13,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984183163] [2023-04-02 05:26:13,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:26:13,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:26:13,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:26:13,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:26:13,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:26:13,092 INFO L87 Difference]: Start difference. First operand 29498 states and 45589 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:26:19,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:26:19,903 INFO L93 Difference]: Finished difference Result 107448 states and 168014 transitions. [2023-04-02 05:26:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:26:19,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 99 [2023-04-02 05:26:19,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:26:20,126 INFO L225 Difference]: With dead ends: 107448 [2023-04-02 05:26:20,126 INFO L226 Difference]: Without dead ends: 78022 [2023-04-02 05:26:20,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:26:20,180 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1263 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:26:20,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 67 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:26:20,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78022 states. [2023-04-02 05:26:25,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78022 to 70530. [2023-04-02 05:26:25,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70530 states, 58975 states have (on average 1.5292242475625264) internal successors, (90186), 60539 states have internal predecessors, (90186), 4996 states have call successors, (4996), 4996 states have call predecessors, (4996), 6558 states have return successors, (12931), 4995 states have call predecessors, (12931), 4995 states have call successors, (12931) [2023-04-02 05:26:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70530 states to 70530 states and 108113 transitions. [2023-04-02 05:26:26,266 INFO L78 Accepts]: Start accepts. Automaton has 70530 states and 108113 transitions. Word has length 99 [2023-04-02 05:26:26,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:26:26,266 INFO L495 AbstractCegarLoop]: Abstraction has 70530 states and 108113 transitions. [2023-04-02 05:26:26,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:26:26,267 INFO L276 IsEmpty]: Start isEmpty. Operand 70530 states and 108113 transitions. [2023-04-02 05:26:26,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 05:26:26,270 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:26:26,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:26:26,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:26:26,271 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:26:26,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:26:26,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1318204997, now seen corresponding path program 1 times [2023-04-02 05:26:26,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:26:26,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175535919] [2023-04-02 05:26:26,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:26:26,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:26:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:26:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:26:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:26,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:26:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:26:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:26,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:26:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:26:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:26,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-04-02 05:26:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:26,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:26:26,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:26:26,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175535919] [2023-04-02 05:26:26,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175535919] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:26:26,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:26:26,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:26:26,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726311124] [2023-04-02 05:26:26,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:26:26,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:26:26,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:26:26,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:26:26,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:26:26,920 INFO L87 Difference]: Start difference. First operand 70530 states and 108113 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:26:41,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:26:41,239 INFO L93 Difference]: Finished difference Result 232420 states and 364970 transitions. [2023-04-02 05:26:41,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 05:26:41,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 101 [2023-04-02 05:26:41,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:26:41,841 INFO L225 Difference]: With dead ends: 232420 [2023-04-02 05:26:41,841 INFO L226 Difference]: Without dead ends: 161921 [2023-04-02 05:26:41,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:26:41,962 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 2054 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:26:41,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2064 Valid, 94 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:26:42,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161921 states. [2023-04-02 05:26:54,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161921 to 146835. [2023-04-02 05:26:54,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146835 states, 122482 states have (on average 1.5011675184925133) internal successors, (183866), 125728 states have internal predecessors, (183866), 10554 states have call successors, (10554), 10554 states have call predecessors, (10554), 13798 states have return successors, (27861), 10555 states have call predecessors, (27861), 10553 states have call successors, (27861) [2023-04-02 05:26:54,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146835 states to 146835 states and 222281 transitions. [2023-04-02 05:26:54,934 INFO L78 Accepts]: Start accepts. Automaton has 146835 states and 222281 transitions. Word has length 101 [2023-04-02 05:26:54,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:26:54,934 INFO L495 AbstractCegarLoop]: Abstraction has 146835 states and 222281 transitions. [2023-04-02 05:26:54,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:26:54,935 INFO L276 IsEmpty]: Start isEmpty. Operand 146835 states and 222281 transitions. [2023-04-02 05:26:54,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 05:26:54,941 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:26:54,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:26:54,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 05:26:54,941 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:26:54,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:26:54,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1272662253, now seen corresponding path program 1 times [2023-04-02 05:26:54,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:26:54,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060344472] [2023-04-02 05:26:54,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:26:54,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:26:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:55,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:26:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:55,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:26:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:55,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:26:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:55,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:26:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:55,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:26:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:55,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:26:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:55,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:26:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:55,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:26:55,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:26:55,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060344472] [2023-04-02 05:26:55,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060344472] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:26:55,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:26:55,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:26:55,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458343140] [2023-04-02 05:26:55,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:26:55,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:26:55,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:26:55,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:26:55,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:26:55,703 INFO L87 Difference]: Start difference. First operand 146835 states and 222281 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7)