/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_lcr.6_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:33:34,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:33:34,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:33:34,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:33:34,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:33:34,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:33:34,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:33:34,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:33:34,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:33:34,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:33:34,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:33:34,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:33:34,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:33:34,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:33:34,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:33:34,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:33:34,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:33:34,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:33:34,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:33:34,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:33:34,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:33:34,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:33:34,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:33:34,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:33:34,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 01:33:34,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:33:34,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:33:34,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:33:34,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:33:34,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:33:34,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:33:34,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:33:34,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:33:34,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:33:34,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:33:34,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:33:34,086 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 [2023-03-31 01:33:34,107 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:33:34,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:33:34,107 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:33:34,107 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:33:34,108 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:33:34,108 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:33:34,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:33:34,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:33:34,108 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:33:34,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:33:34,108 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:33:34,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:33:34,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:33:34,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:33:34,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:33:34,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:33:34,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:33:34,109 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:33:34,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:33:34,109 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:33:34,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:33:34,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:33:34,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:33:34,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:33:34,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:33:34,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:33:34,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:33:34,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:33:34,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:33:34,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:33:34,110 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:33:34,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:33:34,110 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:33:34,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:33:34,110 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:33:34,110 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:33:34,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:33:34,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:33:34,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:33:34,300 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:33:34,301 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:33:34,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.6_overflow.ufo.UNBOUNDED.pals.c [2023-03-31 01:33:35,331 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:33:35,538 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:33:35,539 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6_overflow.ufo.UNBOUNDED.pals.c [2023-03-31 01:33:35,546 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575677c87/7c76ec398e3945b0bfe0ec43b4c584ae/FLAGf7fcb7175 [2023-03-31 01:33:35,556 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575677c87/7c76ec398e3945b0bfe0ec43b4c584ae [2023-03-31 01:33:35,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:33:35,558 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:33:35,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:33:35,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:33:35,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:33:35,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:33:35" (1/1) ... [2023-03-31 01:33:35,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f2efeee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35, skipping insertion in model container [2023-03-31 01:33:35,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:33:35" (1/1) ... [2023-03-31 01:33:35,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:33:35,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:33:35,746 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_lcr.6_overflow.ufo.UNBOUNDED.pals.c[15177,15190] [2023-03-31 01:33:35,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:33:35,758 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:33:35,807 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_lcr.6_overflow.ufo.UNBOUNDED.pals.c[15177,15190] [2023-03-31 01:33:35,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:33:35,828 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:33:35,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35 WrapperNode [2023-03-31 01:33:35,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:33:35,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:33:35,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:33:35,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:33:35,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35" (1/1) ... [2023-03-31 01:33:35,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35" (1/1) ... [2023-03-31 01:33:35,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35" (1/1) ... [2023-03-31 01:33:35,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35" (1/1) ... [2023-03-31 01:33:35,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35" (1/1) ... [2023-03-31 01:33:35,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35" (1/1) ... [2023-03-31 01:33:35,880 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35" (1/1) ... [2023-03-31 01:33:35,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35" (1/1) ... [2023-03-31 01:33:35,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:33:35,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:33:35,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:33:35,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:33:35,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35" (1/1) ... [2023-03-31 01:33:35,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:33:35,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:33:35,924 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) [2023-03-31 01:33:35,926 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 [2023-03-31 01:33:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:33:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:33:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:33:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:33:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-03-31 01:33:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-03-31 01:33:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-03-31 01:33:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-03-31 01:33:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-03-31 01:33:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2023-03-31 01:33:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 01:33:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 01:33:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:33:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:33:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:33:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:33:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:33:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:33:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:33:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:33:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 01:33:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:33:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:33:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:33:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:33:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:33:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:33:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:33:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:33:36,063 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:33:36,064 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:33:36,536 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:33:36,543 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:33:36,543 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:33:36,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:33:36 BoogieIcfgContainer [2023-03-31 01:33:36,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:33:36,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:33:36,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:33:36,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:33:36,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:33:35" (1/3) ... [2023-03-31 01:33:36,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eda89d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:33:36, skipping insertion in model container [2023-03-31 01:33:36,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:35" (2/3) ... [2023-03-31 01:33:36,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eda89d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:33:36, skipping insertion in model container [2023-03-31 01:33:36,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:33:36" (3/3) ... [2023-03-31 01:33:36,560 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6_overflow.ufo.UNBOUNDED.pals.c [2023-03-31 01:33:36,578 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:33:36,578 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:33:36,632 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:33:36,637 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;@f5a78b5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:33:36,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:33:36,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 111 states have (on average 1.6666666666666667) internal successors, (185), 113 states have internal predecessors, (185), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-03-31 01:33:36,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-03-31 01:33:36,652 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:33:36,653 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] [2023-03-31 01:33:36,653 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:33:36,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:33:36,659 INFO L85 PathProgramCache]: Analyzing trace with hash -83415886, now seen corresponding path program 1 times [2023-03-31 01:33:36,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:33:36,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635582088] [2023-03-31 01:33:36,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:33:36,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:33:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:37,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:33:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:37,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:33:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:37,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:33:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:37,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-03-31 01:33:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-03-31 01:33:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:37,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 01:33:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:37,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-03-31 01:33:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:37,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:33:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:37,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-03-31 01:33:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:37,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:33:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:33:37,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:33:37,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635582088] [2023-03-31 01:33:37,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635582088] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:33:37,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:33:37,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:33:37,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66066839] [2023-03-31 01:33:37,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:33:37,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:33:37,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:33:37,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:33:37,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:33:37,359 INFO L87 Difference]: Start difference. First operand has 137 states, 111 states have (on average 1.6666666666666667) internal successors, (185), 113 states have internal predecessors, (185), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 01:33:38,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:33:38,223 INFO L93 Difference]: Finished difference Result 214 states and 319 transitions. [2023-03-31 01:33:38,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 01:33:38,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 62 [2023-03-31 01:33:38,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:33:38,232 INFO L225 Difference]: With dead ends: 214 [2023-03-31 01:33:38,232 INFO L226 Difference]: Without dead ends: 132 [2023-03-31 01:33:38,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:33:38,237 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 410 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:33:38,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 62 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 01:33:38,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-03-31 01:33:38,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2023-03-31 01:33:38,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 108 states have (on average 1.6481481481481481) internal successors, (178), 109 states have internal predecessors, (178), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-03-31 01:33:38,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 201 transitions. [2023-03-31 01:33:38,281 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 201 transitions. Word has length 62 [2023-03-31 01:33:38,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:33:38,281 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 201 transitions. [2023-03-31 01:33:38,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 01:33:38,282 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 201 transitions. [2023-03-31 01:33:38,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-03-31 01:33:38,283 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:33:38,283 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] [2023-03-31 01:33:38,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:33:38,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:33:38,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:33:38,284 INFO L85 PathProgramCache]: Analyzing trace with hash -436504268, now seen corresponding path program 1 times [2023-03-31 01:33:38,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:33:38,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986536894] [2023-03-31 01:33:38,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:33:38,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:33:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:38,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:33:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:38,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:33:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:33:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:38,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-03-31 01:33:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:38,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-03-31 01:33:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 01:33:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:38,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-03-31 01:33:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:38,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:33:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:38,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-03-31 01:33:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:38,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:33:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:38,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:33:38,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:33:38,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986536894] [2023-03-31 01:33:38,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986536894] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:33:38,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:33:38,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-03-31 01:33:38,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024236108] [2023-03-31 01:33:38,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:33:38,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-31 01:33:38,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:33:38,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-31 01:33:38,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:33:38,774 INFO L87 Difference]: Start difference. First operand 132 states and 201 transitions. Second operand has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-03-31 01:33:40,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:33:40,341 INFO L93 Difference]: Finished difference Result 212 states and 311 transitions. [2023-03-31 01:33:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-03-31 01:33:40,341 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 62 [2023-03-31 01:33:40,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:33:40,342 INFO L225 Difference]: With dead ends: 212 [2023-03-31 01:33:40,342 INFO L226 Difference]: Without dead ends: 132 [2023-03-31 01:33:40,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:33:40,344 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1091 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:33:40,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 156 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:33:40,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-03-31 01:33:40,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2023-03-31 01:33:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 108 states have (on average 1.2777777777777777) internal successors, (138), 109 states have internal predecessors, (138), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-03-31 01:33:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 161 transitions. [2023-03-31 01:33:40,364 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 161 transitions. Word has length 62 [2023-03-31 01:33:40,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:33:40,364 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 161 transitions. [2023-03-31 01:33:40,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-03-31 01:33:40,364 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 161 transitions. [2023-03-31 01:33:40,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-03-31 01:33:40,366 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:33:40,366 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] [2023-03-31 01:33:40,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:33:40,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:33:40,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:33:40,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1361654523, now seen corresponding path program 1 times [2023-03-31 01:33:40,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:33:40,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036434758] [2023-03-31 01:33:40,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:33:40,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:33:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:40,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:33:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:40,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:33:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:40,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 01:33:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:40,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 01:33:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:40,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:33:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:41,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:33:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:41,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:33:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:41,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:33:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:41,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:33:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:41,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:33:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:33:41,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:33:41,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036434758] [2023-03-31 01:33:41,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036434758] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:33:41,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:33:41,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-03-31 01:33:41,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279015769] [2023-03-31 01:33:41,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:33:41,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-03-31 01:33:41,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:33:41,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-03-31 01:33:41,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-03-31 01:33:41,193 INFO L87 Difference]: Start difference. First operand 132 states and 161 transitions. Second operand has 22 states, 22 states have (on average 3.590909090909091) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 01:33:55,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:33:55,862 INFO L93 Difference]: Finished difference Result 1506 states and 2149 transitions. [2023-03-31 01:33:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2023-03-31 01:33:55,864 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.590909090909091) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2023-03-31 01:33:55,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:33:55,879 INFO L225 Difference]: With dead ends: 1506 [2023-03-31 01:33:55,880 INFO L226 Difference]: Without dead ends: 1432 [2023-03-31 01:33:55,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12482 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=4801, Invalid=28505, Unknown=0, NotChecked=0, Total=33306 [2023-03-31 01:33:55,895 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 3032 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 6631 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 7019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 6631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:33:55,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3047 Valid, 440 Invalid, 7019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 6631 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-03-31 01:33:55,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2023-03-31 01:33:56,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 520. [2023-03-31 01:33:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 404 states have (on average 1.4108910891089108) internal successors, (570), 417 states have internal predecessors, (570), 52 states have call successors, (52), 52 states have call predecessors, (52), 63 states have return successors, (91), 51 states have call predecessors, (91), 51 states have call successors, (91) [2023-03-31 01:33:56,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 713 transitions. [2023-03-31 01:33:56,017 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 713 transitions. Word has length 101 [2023-03-31 01:33:56,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:33:56,019 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 713 transitions. [2023-03-31 01:33:56,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.590909090909091) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 01:33:56,019 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 713 transitions. [2023-03-31 01:33:56,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-03-31 01:33:56,025 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:33:56,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:33:56,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:33:56,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:33:56,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:33:56,031 INFO L85 PathProgramCache]: Analyzing trace with hash -396271989, now seen corresponding path program 1 times [2023-03-31 01:33:56,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:33:56,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415225443] [2023-03-31 01:33:56,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:33:56,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:33:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:56,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:33:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:56,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:33:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:56,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 01:33:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:56,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 01:33:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:56,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:33:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:56,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:33:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:56,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:33:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:56,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:33:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:56,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:33:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:56,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:33:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:56,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:33:56,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:33:56,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415225443] [2023-03-31 01:33:56,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415225443] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:33:56,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:33:56,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:33:56,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894648990] [2023-03-31 01:33:56,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:33:56,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:33:56,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:33:56,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:33:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:33:56,309 INFO L87 Difference]: Start difference. First operand 520 states and 713 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-03-31 01:33:57,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:33:57,712 INFO L93 Difference]: Finished difference Result 1404 states and 1979 transitions. [2023-03-31 01:33:57,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-31 01:33:57,712 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 103 [2023-03-31 01:33:57,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:33:57,720 INFO L225 Difference]: With dead ends: 1404 [2023-03-31 01:33:57,720 INFO L226 Difference]: Without dead ends: 942 [2023-03-31 01:33:57,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2023-03-31 01:33:57,721 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 808 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:33:57,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 104 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-03-31 01:33:57,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2023-03-31 01:33:57,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 940. [2023-03-31 01:33:57,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 718 states have (on average 1.415041782729805) internal successors, (1016), 741 states have internal predecessors, (1016), 100 states have call successors, (100), 100 states have call predecessors, (100), 121 states have return successors, (189), 99 states have call predecessors, (189), 99 states have call successors, (189) [2023-03-31 01:33:57,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1305 transitions. [2023-03-31 01:33:57,822 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1305 transitions. Word has length 103 [2023-03-31 01:33:57,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:33:57,823 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1305 transitions. [2023-03-31 01:33:57,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-03-31 01:33:57,823 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1305 transitions. [2023-03-31 01:33:57,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-03-31 01:33:57,824 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:33:57,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:33:57,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:33:57,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:33:57,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:33:57,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1683974445, now seen corresponding path program 1 times [2023-03-31 01:33:57,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:33:57,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88551652] [2023-03-31 01:33:57,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:33:57,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:33:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:58,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:33:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:58,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:33:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:58,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 01:33:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:58,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 01:33:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:58,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:33:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:58,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:33:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:58,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:33:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:58,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:33:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:58,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:33:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:33:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:58,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:33:58,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:33:58,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88551652] [2023-03-31 01:33:58,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88551652] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:33:58,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:33:58,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-03-31 01:33:58,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345661113] [2023-03-31 01:33:58,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:33:58,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-03-31 01:33:58,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:33:58,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-03-31 01:33:58,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-03-31 01:33:58,590 INFO L87 Difference]: Start difference. First operand 940 states and 1305 transitions. Second operand has 22 states, 22 states have (on average 3.6818181818181817) internal successors, (81), 15 states have internal predecessors, (81), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 01:34:13,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:13,736 INFO L93 Difference]: Finished difference Result 4238 states and 6076 transitions. [2023-03-31 01:34:13,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2023-03-31 01:34:13,737 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.6818181818181817) internal successors, (81), 15 states have internal predecessors, (81), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 103 [2023-03-31 01:34:13,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:13,748 INFO L225 Difference]: With dead ends: 4238 [2023-03-31 01:34:13,748 INFO L226 Difference]: Without dead ends: 3356 [2023-03-31 01:34:13,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12262 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=4683, Invalid=27537, Unknown=0, NotChecked=0, Total=32220 [2023-03-31 01:34:13,757 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 4316 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 5510 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4331 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 6071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 5510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:13,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4331 Valid, 356 Invalid, 6071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 5510 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-03-31 01:34:13,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2023-03-31 01:34:14,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 3275. [2023-03-31 01:34:14,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 2500 states have (on average 1.4528) internal successors, (3632), 2552 states have internal predecessors, (3632), 362 states have call successors, (362), 362 states have call predecessors, (362), 412 states have return successors, (714), 361 states have call predecessors, (714), 361 states have call successors, (714) [2023-03-31 01:34:14,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 4708 transitions. [2023-03-31 01:34:14,224 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 4708 transitions. Word has length 103 [2023-03-31 01:34:14,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:14,224 INFO L495 AbstractCegarLoop]: Abstraction has 3275 states and 4708 transitions. [2023-03-31 01:34:14,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.6818181818181817) internal successors, (81), 15 states have internal predecessors, (81), 3 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 01:34:14,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 4708 transitions. [2023-03-31 01:34:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-03-31 01:34:14,226 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:14,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:14,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:34:14,226 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:14,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:14,227 INFO L85 PathProgramCache]: Analyzing trace with hash 489257348, now seen corresponding path program 1 times [2023-03-31 01:34:14,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:14,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734282903] [2023-03-31 01:34:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:14,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 01:34:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 01:34:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:34:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:34:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:34:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:34:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:34:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:34:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:34:14,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:14,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734282903] [2023-03-31 01:34:14,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734282903] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:14,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:14,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-03-31 01:34:14,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092908460] [2023-03-31 01:34:14,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:14,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 01:34:14,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:14,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 01:34:14,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-03-31 01:34:14,602 INFO L87 Difference]: Start difference. First operand 3275 states and 4708 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 01:34:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:17,009 INFO L93 Difference]: Finished difference Result 7688 states and 11089 transitions. [2023-03-31 01:34:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-03-31 01:34:17,010 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2023-03-31 01:34:17,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:17,024 INFO L225 Difference]: With dead ends: 7688 [2023-03-31 01:34:17,024 INFO L226 Difference]: Without dead ends: 4471 [2023-03-31 01:34:17,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=262, Invalid=794, Unknown=0, NotChecked=0, Total=1056 [2023-03-31 01:34:17,031 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 909 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:17,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 107 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:34:17,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4471 states. [2023-03-31 01:34:17,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4471 to 4467. [2023-03-31 01:34:17,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4467 states, 3391 states have (on average 1.4467708640519021) internal successors, (4906), 3476 states have internal predecessors, (4906), 496 states have call successors, (496), 496 states have call predecessors, (496), 579 states have return successors, (994), 495 states have call predecessors, (994), 495 states have call successors, (994) [2023-03-31 01:34:17,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4467 states to 4467 states and 6396 transitions. [2023-03-31 01:34:17,713 INFO L78 Accepts]: Start accepts. Automaton has 4467 states and 6396 transitions. Word has length 104 [2023-03-31 01:34:17,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:17,714 INFO L495 AbstractCegarLoop]: Abstraction has 4467 states and 6396 transitions. [2023-03-31 01:34:17,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 01:34:17,714 INFO L276 IsEmpty]: Start isEmpty. Operand 4467 states and 6396 transitions. [2023-03-31 01:34:17,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-03-31 01:34:17,717 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:17,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:17,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:34:17,717 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:17,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:17,718 INFO L85 PathProgramCache]: Analyzing trace with hash 2136682309, now seen corresponding path program 1 times [2023-03-31 01:34:17,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:17,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174003867] [2023-03-31 01:34:17,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:17,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 01:34:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 01:34:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:34:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:34:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:34:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:34:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:34:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:34:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:34:18,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:18,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174003867] [2023-03-31 01:34:18,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174003867] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:18,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:18,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-03-31 01:34:18,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045248340] [2023-03-31 01:34:18,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:18,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-03-31 01:34:18,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:18,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-03-31 01:34:18,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:34:18,247 INFO L87 Difference]: Start difference. First operand 4467 states and 6396 transitions. Second operand has 19 states, 17 states have (on average 4.823529411764706) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 01:34:20,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:20,624 INFO L93 Difference]: Finished difference Result 4819 states and 7190 transitions. [2023-03-31 01:34:20,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:34:20,625 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.823529411764706) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2023-03-31 01:34:20,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:20,649 INFO L225 Difference]: With dead ends: 4819 [2023-03-31 01:34:20,649 INFO L226 Difference]: Without dead ends: 4817 [2023-03-31 01:34:20,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2023-03-31 01:34:20,652 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 536 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:20,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 330 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1914 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-03-31 01:34:20,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4817 states. [2023-03-31 01:34:21,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4817 to 4521. [2023-03-31 01:34:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4521 states, 3427 states have (on average 1.4388678144149403) internal successors, (4931), 3518 states have internal predecessors, (4931), 502 states have call successors, (502), 502 states have call predecessors, (502), 591 states have return successors, (1012), 501 states have call predecessors, (1012), 501 states have call successors, (1012) [2023-03-31 01:34:21,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4521 states to 4521 states and 6445 transitions. [2023-03-31 01:34:21,366 INFO L78 Accepts]: Start accepts. Automaton has 4521 states and 6445 transitions. Word has length 104 [2023-03-31 01:34:21,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:21,367 INFO L495 AbstractCegarLoop]: Abstraction has 4521 states and 6445 transitions. [2023-03-31 01:34:21,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.823529411764706) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 01:34:21,367 INFO L276 IsEmpty]: Start isEmpty. Operand 4521 states and 6445 transitions. [2023-03-31 01:34:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-03-31 01:34:21,369 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:21,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:21,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:34:21,370 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:21,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:21,370 INFO L85 PathProgramCache]: Analyzing trace with hash 122614019, now seen corresponding path program 1 times [2023-03-31 01:34:21,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:21,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452472943] [2023-03-31 01:34:21,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:21,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:21,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:21,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 01:34:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 01:34:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:21,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-03-31 01:34:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:21,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:34:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:21,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-03-31 01:34:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:21,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-03-31 01:34:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:21,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-03-31 01:34:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:21,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-03-31 01:34:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:21,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:34:21,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:21,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452472943] [2023-03-31 01:34:21,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452472943] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:21,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:21,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-31 01:34:21,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647463669] [2023-03-31 01:34:21,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:21,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:34:21,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:21,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:34:21,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:34:21,754 INFO L87 Difference]: Start difference. First operand 4521 states and 6445 transitions. Second operand has 16 states, 16 states have (on average 5.1875) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-03-31 01:34:25,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:25,219 INFO L93 Difference]: Finished difference Result 9178 states and 13158 transitions. [2023-03-31 01:34:25,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-03-31 01:34:25,220 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.1875) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 105 [2023-03-31 01:34:25,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:25,238 INFO L225 Difference]: With dead ends: 9178 [2023-03-31 01:34:25,238 INFO L226 Difference]: Without dead ends: 5871 [2023-03-31 01:34:25,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-03-31 01:34:25,245 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1270 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:25,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 73 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:34:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5871 states. [2023-03-31 01:34:26,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5871 to 5184. [2023-03-31 01:34:26,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5184 states, 3934 states have (on average 1.4486527707168277) internal successors, (5699), 4049 states have internal predecessors, (5699), 568 states have call successors, (568), 568 states have call predecessors, (568), 681 states have return successors, (1147), 566 states have call predecessors, (1147), 567 states have call successors, (1147) [2023-03-31 01:34:26,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7414 transitions. [2023-03-31 01:34:26,067 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7414 transitions. Word has length 105 [2023-03-31 01:34:26,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:26,068 INFO L495 AbstractCegarLoop]: Abstraction has 5184 states and 7414 transitions. [2023-03-31 01:34:26,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.1875) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-03-31 01:34:26,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7414 transitions. [2023-03-31 01:34:26,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-03-31 01:34:26,070 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:26,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:26,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:34:26,070 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:26,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:26,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1917914253, now seen corresponding path program 1 times [2023-03-31 01:34:26,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:26,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956608223] [2023-03-31 01:34:26,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:26,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:26,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:26,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:26,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 01:34:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 01:34:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:26,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:34:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:26,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:34:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:26,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-03-31 01:34:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:26,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-03-31 01:34:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:26,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-03-31 01:34:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:26,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-03-31 01:34:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:26,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:34:26,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:26,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956608223] [2023-03-31 01:34:26,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956608223] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:26,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:26,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-31 01:34:26,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210461060] [2023-03-31 01:34:26,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:26,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:34:26,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:26,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:34:26,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:34:26,433 INFO L87 Difference]: Start difference. First operand 5184 states and 7414 transitions. Second operand has 16 states, 16 states have (on average 5.1875) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-03-31 01:34:29,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:29,992 INFO L93 Difference]: Finished difference Result 13402 states and 19160 transitions. [2023-03-31 01:34:29,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-03-31 01:34:29,993 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.1875) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 105 [2023-03-31 01:34:29,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:30,031 INFO L225 Difference]: With dead ends: 13402 [2023-03-31 01:34:30,031 INFO L226 Difference]: Without dead ends: 8282 [2023-03-31 01:34:30,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-03-31 01:34:30,042 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1670 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:30,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1670 Valid, 68 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-03-31 01:34:30,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8282 states. [2023-03-31 01:34:30,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8282 to 5153. [2023-03-31 01:34:30,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 3909 states have (on average 1.4474290099769762) internal successors, (5658), 4024 states have internal predecessors, (5658), 565 states have call successors, (565), 565 states have call predecessors, (565), 678 states have return successors, (1141), 563 states have call predecessors, (1141), 564 states have call successors, (1141) [2023-03-31 01:34:30,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 7364 transitions. [2023-03-31 01:34:30,899 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 7364 transitions. Word has length 105 [2023-03-31 01:34:30,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:30,899 INFO L495 AbstractCegarLoop]: Abstraction has 5153 states and 7364 transitions. [2023-03-31 01:34:30,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.1875) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-03-31 01:34:30,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 7364 transitions. [2023-03-31 01:34:30,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-03-31 01:34:30,903 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:30,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:30,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-03-31 01:34:30,903 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:30,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:30,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1279166589, now seen corresponding path program 1 times [2023-03-31 01:34:30,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:30,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139826037] [2023-03-31 01:34:30,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:30,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:31,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:31,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 01:34:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 01:34:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:31,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:34:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:31,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:34:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-03-31 01:34:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-03-31 01:34:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat