/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.8.1.ufo.BOUNDED-16.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:34:08,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:34:08,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:34:08,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:34:08,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:34:08,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:34:08,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:34:08,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:34:08,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:34:08,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:34:08,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:34:08,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:34:08,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:34:08,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:34:08,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:34:08,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:34:08,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:34:08,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:34:08,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:34:08,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:34:08,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:34:08,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:34:08,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:34:08,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:34:08,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:34:08,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:34:08,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:34:08,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:34:08,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:34:08,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:34:08,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:34:08,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:34:08,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:34:08,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:34:08,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:34:08,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:34:08,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:34:08,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:34:08,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:34:08,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:34:08,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:34:08,481 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 01:34:08,516 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:34:08,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:34:08,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:34:08,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:34:08,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:34:08,519 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:34:08,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:34:08,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:34:08,520 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:34:08,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:34:08,520 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:34:08,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:34:08,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:34:08,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:34:08,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:34:08,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:34:08,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:34:08,521 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:34:08,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:34:08,522 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:34:08,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:34:08,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:34:08,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:34:08,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:34:08,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:34:08,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:34:08,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:34:08,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:34:08,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:34:08,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:34:08,524 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:34:08,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:34:08,524 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:34:08,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:34:08,524 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:34:08,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:34:08,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:34:08,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:34:08,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:34:08,811 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:34:08,812 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:34:08,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2023-03-31 01:34:09,912 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:34:10,145 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:34:10,146 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2023-03-31 01:34:10,154 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6a9be8f4/90c5deeb48504c92867949eb9b2b4993/FLAG48e9fccb0 [2023-03-31 01:34:10,167 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6a9be8f4/90c5deeb48504c92867949eb9b2b4993 [2023-03-31 01:34:10,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:34:10,171 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:34:10,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:34:10,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:34:10,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:34:10,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:34:10" (1/1) ... [2023-03-31 01:34:10,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@578660ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10, skipping insertion in model container [2023-03-31 01:34:10,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:34:10" (1/1) ... [2023-03-31 01:34:10,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:34:10,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:34:10,496 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.8.1.ufo.BOUNDED-16.pals.c[26490,26503] [2023-03-31 01:34:10,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:34:10,520 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:34:10,593 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.8.1.ufo.BOUNDED-16.pals.c[26490,26503] [2023-03-31 01:34:10,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:34:10,611 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:34:10,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10 WrapperNode [2023-03-31 01:34:10,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:34:10,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:34:10,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:34:10,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:34:10,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10" (1/1) ... [2023-03-31 01:34:10,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10" (1/1) ... [2023-03-31 01:34:10,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10" (1/1) ... [2023-03-31 01:34:10,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10" (1/1) ... [2023-03-31 01:34:10,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10" (1/1) ... [2023-03-31 01:34:10,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10" (1/1) ... [2023-03-31 01:34:10,701 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10" (1/1) ... [2023-03-31 01:34:10,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10" (1/1) ... [2023-03-31 01:34:10,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:34:10,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:34:10,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:34:10,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:34:10,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10" (1/1) ... [2023-03-31 01:34:10,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:34:10,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:34:10,739 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 01:34:10,743 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 01:34:10,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:34:10,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:34:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:34:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:34:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-03-31 01:34:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-03-31 01:34:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-03-31 01:34:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-03-31 01:34:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-03-31 01:34:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2023-03-31 01:34:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2023-03-31 01:34:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure node8 [2023-03-31 01:34:10,777 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 01:34:10,777 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 01:34:10,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:34:10,777 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:34:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:34:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:34:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:34:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:34:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:34:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:34:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:34:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:34:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:34:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:34:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:34:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:34:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:34:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:34:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-31 01:34:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-03-31 01:34:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2023-03-31 01:34:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure node8 [2023-03-31 01:34:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:34:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:34:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:34:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:34:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:34:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:34:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:34:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:34:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:34:10,969 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:34:10,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:34:11,574 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:34:11,585 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:34:11,586 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:34:11,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:34:11 BoogieIcfgContainer [2023-03-31 01:34:11,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:34:11,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:34:11,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:34:11,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:34:11,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:34:10" (1/3) ... [2023-03-31 01:34:11,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d67729c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:34:11, skipping insertion in model container [2023-03-31 01:34:11,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:34:10" (2/3) ... [2023-03-31 01:34:11,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d67729c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:34:11, skipping insertion in model container [2023-03-31 01:34:11,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:34:11" (3/3) ... [2023-03-31 01:34:11,597 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2023-03-31 01:34:11,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:34:11,614 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:34:11,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:34:11,676 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;@2d50bdb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:34:11,676 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:34:11,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-03-31 01:34:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-03-31 01:34:11,695 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:11,696 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] [2023-03-31 01:34:11,697 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:11,703 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:11,704 INFO L85 PathProgramCache]: Analyzing trace with hash 178680108, now seen corresponding path program 1 times [2023-03-31 01:34:11,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:11,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643937668] [2023-03-31 01:34:11,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:11,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:34:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-03-31 01:34:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-03-31 01:34:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 01:34:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-03-31 01:34:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:34:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-03-31 01:34:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-03-31 01:34:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:34:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-03-31 01:34:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:12,645 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 01:34:12,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:12,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643937668] [2023-03-31 01:34:12,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643937668] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:12,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:12,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:34:12,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337585028] [2023-03-31 01:34:12,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:12,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:34:12,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:12,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:34:12,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:34:12,695 INFO L87 Difference]: Start difference. First operand has 177 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 11 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-03-31 01:34:14,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:14,389 INFO L93 Difference]: Finished difference Result 278 states and 419 transitions. [2023-03-31 01:34:14,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-31 01:34:14,391 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 11 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 72 [2023-03-31 01:34:14,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:14,404 INFO L225 Difference]: With dead ends: 278 [2023-03-31 01:34:14,404 INFO L226 Difference]: Without dead ends: 172 [2023-03-31 01:34:14,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:34:14,415 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 868 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:14,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 127 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 01:34:14,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-03-31 01:34:14,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2023-03-31 01:34:14,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 144 states have (on average 1.6875) internal successors, (243), 144 states have internal predecessors, (243), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-03-31 01:34:14,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 270 transitions. [2023-03-31 01:34:14,481 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 270 transitions. Word has length 72 [2023-03-31 01:34:14,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:14,482 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 270 transitions. [2023-03-31 01:34:14,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 11 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-03-31 01:34:14,482 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 270 transitions. [2023-03-31 01:34:14,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-03-31 01:34:14,485 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:14,485 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] [2023-03-31 01:34:14,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:34:14,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:14,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:14,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1439597358, now seen corresponding path program 1 times [2023-03-31 01:34:14,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:14,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215034015] [2023-03-31 01:34:14,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:14,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:34:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:14,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-03-31 01:34:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:15,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-03-31 01:34:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:15,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 01:34:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:15,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-03-31 01:34:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:34:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-03-31 01:34:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:15,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-03-31 01:34:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:34:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:15,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-03-31 01:34:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:15,196 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 01:34:15,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:15,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215034015] [2023-03-31 01:34:15,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215034015] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:15,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:15,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-03-31 01:34:15,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756532612] [2023-03-31 01:34:15,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:15,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-03-31 01:34:15,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:15,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-03-31 01:34:15,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-03-31 01:34:15,200 INFO L87 Difference]: Start difference. First operand 172 states and 270 transitions. Second operand has 17 states, 16 states have (on average 2.875) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (14), 11 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-03-31 01:34:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:18,103 INFO L93 Difference]: Finished difference Result 285 states and 431 transitions. [2023-03-31 01:34:18,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-31 01:34:18,103 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (14), 11 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 72 [2023-03-31 01:34:18,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:18,111 INFO L225 Difference]: With dead ends: 285 [2023-03-31 01:34:18,111 INFO L226 Difference]: Without dead ends: 186 [2023-03-31 01:34:18,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2023-03-31 01:34:18,119 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 723 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 2103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:18,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 163 Invalid, 2103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-03-31 01:34:18,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-03-31 01:34:18,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 172. [2023-03-31 01:34:18,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 144 states have (on average 1.2638888888888888) internal successors, (182), 144 states have internal predecessors, (182), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-03-31 01:34:18,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 209 transitions. [2023-03-31 01:34:18,163 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 209 transitions. Word has length 72 [2023-03-31 01:34:18,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:18,164 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 209 transitions. [2023-03-31 01:34:18,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (14), 11 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-03-31 01:34:18,164 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 209 transitions. [2023-03-31 01:34:18,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-03-31 01:34:18,167 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:18,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:18,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:34:18,168 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:18,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:18,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1667603198, now seen corresponding path program 1 times [2023-03-31 01:34:18,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:18,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568365016] [2023-03-31 01:34:18,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:18,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:18,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:19,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:34:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:19,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-03-31 01:34:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:19,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-03-31 01:34:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:19,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:34:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:19,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-03-31 01:34:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:19,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 01:34:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:34:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:19,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-03-31 01:34:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:19,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-03-31 01:34:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:19,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-03-31 01:34:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:19,609 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 01:34:19,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:19,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568365016] [2023-03-31 01:34:19,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568365016] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:19,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:19,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2023-03-31 01:34:19,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427663973] [2023-03-31 01:34:19,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:19,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-03-31 01:34:19,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:19,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-03-31 01:34:19,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2023-03-31 01:34:19,614 INFO L87 Difference]: Start difference. First operand 172 states and 209 transitions. Second operand has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 19 states have internal predecessors, (106), 3 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-03-31 01:34:55,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:55,996 INFO L93 Difference]: Finished difference Result 2483 states and 3571 transitions. [2023-03-31 01:34:55,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 278 states. [2023-03-31 01:34:55,997 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 19 states have internal predecessors, (106), 3 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 132 [2023-03-31 01:34:55,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:56,012 INFO L225 Difference]: With dead ends: 2483 [2023-03-31 01:34:56,012 INFO L226 Difference]: Without dead ends: 2390 [2023-03-31 01:34:56,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 298 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35940 ImplicationChecksByTransitivity, 27.2s TimeCoverageRelationStatistics Valid=10864, Invalid=78836, Unknown=0, NotChecked=0, Total=89700 [2023-03-31 01:34:56,041 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 5353 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 13380 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5372 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 13982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 13380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:56,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5372 Valid, 864 Invalid, 13982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [602 Valid, 13380 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-03-31 01:34:56,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2023-03-31 01:34:56,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 667. [2023-03-31 01:34:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 523 states have (on average 1.4091778202676863) internal successors, (737), 539 states have internal predecessors, (737), 64 states have call successors, (64), 64 states have call predecessors, (64), 79 states have return successors, (115), 63 states have call predecessors, (115), 63 states have call successors, (115) [2023-03-31 01:34:56,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 916 transitions. [2023-03-31 01:34:56,237 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 916 transitions. Word has length 132 [2023-03-31 01:34:56,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:56,238 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 916 transitions. [2023-03-31 01:34:56,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 19 states have internal predecessors, (106), 3 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-03-31 01:34:56,238 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 916 transitions. [2023-03-31 01:34:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 01:34:56,242 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:56,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:56,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:34:56,242 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:56,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:56,243 INFO L85 PathProgramCache]: Analyzing trace with hash -497153362, now seen corresponding path program 1 times [2023-03-31 01:34:56,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:56,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91769883] [2023-03-31 01:34:56,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:56,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:34:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-03-31 01:34:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-03-31 01:34:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:34:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-03-31 01:34:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 01:34:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:34:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-03-31 01:34:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-03-31 01:34:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-03-31 01:34:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:56,651 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 01:34:56,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:56,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91769883] [2023-03-31 01:34:56,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91769883] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:56,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:56,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-03-31 01:34:56,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372437403] [2023-03-31 01:34:56,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:56,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 01:34:56,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:56,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 01:34:56,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-03-31 01:34:56,654 INFO L87 Difference]: Start difference. First operand 667 states and 916 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (14), 11 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-03-31 01:34:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:59,073 INFO L93 Difference]: Finished difference Result 1803 states and 2546 transitions. [2023-03-31 01:34:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-03-31 01:34:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (14), 11 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 134 [2023-03-31 01:34:59,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:59,084 INFO L225 Difference]: With dead ends: 1803 [2023-03-31 01:34:59,084 INFO L226 Difference]: Without dead ends: 1215 [2023-03-31 01:34:59,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=225, Invalid=587, Unknown=0, NotChecked=0, Total=812 [2023-03-31 01:34:59,098 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 1137 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:59,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1145 Valid, 144 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 01:34:59,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2023-03-31 01:34:59,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1213. [2023-03-31 01:34:59,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 935 states have (on average 1.4213903743315508) internal successors, (1329), 965 states have internal predecessors, (1329), 124 states have call successors, (124), 124 states have call predecessors, (124), 153 states have return successors, (237), 123 states have call predecessors, (237), 123 states have call successors, (237) [2023-03-31 01:34:59,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1690 transitions. [2023-03-31 01:34:59,332 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1690 transitions. Word has length 134 [2023-03-31 01:34:59,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:59,332 INFO L495 AbstractCegarLoop]: Abstraction has 1213 states and 1690 transitions. [2023-03-31 01:34:59,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (14), 11 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-03-31 01:34:59,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1690 transitions. [2023-03-31 01:34:59,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 01:34:59,335 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:59,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:59,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:34:59,336 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:59,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:59,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1784855818, now seen corresponding path program 1 times [2023-03-31 01:34:59,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:59,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808493990] [2023-03-31 01:34:59,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:59,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:35:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:35:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:35:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-03-31 01:35:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-03-31 01:35:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:35:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-03-31 01:35:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 01:35:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:35:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-03-31 01:35:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-03-31 01:35:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-03-31 01:35:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:00,910 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 01:35:00,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:35:00,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808493990] [2023-03-31 01:35:00,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808493990] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:35:00,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:35:00,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2023-03-31 01:35:00,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908255927] [2023-03-31 01:35:00,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:35:00,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-03-31 01:35:00,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:35:00,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-03-31 01:35:00,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2023-03-31 01:35:00,915 INFO L87 Difference]: Start difference. First operand 1213 states and 1690 transitions. Second operand has 28 states, 28 states have (on average 3.857142857142857) internal successors, (108), 19 states have internal predecessors, (108), 3 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12)