/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-var-start-time.6.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:31:57,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:31:57,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:31:57,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:31:57,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:31:57,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:31:57,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:31:57,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:31:57,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:31:57,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:31:57,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:31:57,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:31:57,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:31:57,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:31:57,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:31:57,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:31:57,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:31:57,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:31:57,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:31:57,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:31:57,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:31:57,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:31:57,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:31:57,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:31:57,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:31:57,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:31:57,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:31:57,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:31:57,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:31:57,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:31:57,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:31:57,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:31:57,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:31:57,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:31:57,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:31:57,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:31:57,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:31:57,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:31:57,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:31:57,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:31:57,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:31:57,514 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 01:31:57,539 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:31:57,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:31:57,539 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:31:57,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:31:57,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:31:57,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:31:57,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:31:57,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:31:57,541 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:31:57,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:31:57,542 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:31:57,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:31:57,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:31:57,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:31:57,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:31:57,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:31:57,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:31:57,543 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:31:57,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:31:57,543 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:31:57,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:31:57,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:31:57,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:31:57,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:31:57,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:31:57,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:31:57,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:31:57,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:31:57,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:31:57,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:31:57,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:31:57,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:31:57,545 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:31:57,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:31:57,545 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:31:57,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:31:57,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:31:57,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:31:57,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:31:57,804 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:31:57,804 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:31:57,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c [2023-03-31 01:31:59,174 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:31:59,398 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:31:59,398 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c [2023-03-31 01:31:59,408 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/731317bfa/beaeef99644843febc325eba89cb6483/FLAGdcb54cb50 [2023-03-31 01:31:59,419 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/731317bfa/beaeef99644843febc325eba89cb6483 [2023-03-31 01:31:59,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:31:59,422 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:31:59,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:31:59,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:31:59,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:31:59,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:31:59" (1/1) ... [2023-03-31 01:31:59,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f966353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59, skipping insertion in model container [2023-03-31 01:31:59,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:31:59" (1/1) ... [2023-03-31 01:31:59,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:31:59,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:31:59,640 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-var-start-time.6.1.ufo.UNBOUNDED.pals.c[17005,17018] [2023-03-31 01:31:59,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:31:59,655 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:31:59,722 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-var-start-time.6.1.ufo.UNBOUNDED.pals.c[17005,17018] [2023-03-31 01:31:59,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:31:59,737 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:31:59,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59 WrapperNode [2023-03-31 01:31:59,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:31:59,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:31:59,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:31:59,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:31:59,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59" (1/1) ... [2023-03-31 01:31:59,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59" (1/1) ... [2023-03-31 01:31:59,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59" (1/1) ... [2023-03-31 01:31:59,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59" (1/1) ... [2023-03-31 01:31:59,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59" (1/1) ... [2023-03-31 01:31:59,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59" (1/1) ... [2023-03-31 01:31:59,794 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59" (1/1) ... [2023-03-31 01:31:59,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59" (1/1) ... [2023-03-31 01:31:59,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:31:59,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:31:59,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:31:59,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:31:59,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59" (1/1) ... [2023-03-31 01:31:59,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:31:59,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:31:59,843 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 01:31:59,845 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 01:31:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:31:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:31:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:31:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:31:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-03-31 01:31:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-03-31 01:31:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-03-31 01:31:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-03-31 01:31:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-03-31 01:31:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2023-03-31 01:31:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 01:31:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 01:31:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:31:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:31:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:31:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:31:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:31:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:31:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:31:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:31:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 01:31:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:31:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:31:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:31:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:31:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:31:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:31:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:31:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:31:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-31 01:31:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-03-31 01:31:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:31:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:31:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:31:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:31:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:31:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:31:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:31:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:31:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:32:00,021 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:32:00,023 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:32:00,525 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:32:00,535 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:32:00,536 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:32:00,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:32:00 BoogieIcfgContainer [2023-03-31 01:32:00,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:32:00,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:32:00,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:32:00,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:32:00,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:31:59" (1/3) ... [2023-03-31 01:32:00,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bec913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:32:00, skipping insertion in model container [2023-03-31 01:32:00,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:59" (2/3) ... [2023-03-31 01:32:00,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bec913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:32:00, skipping insertion in model container [2023-03-31 01:32:00,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:32:00" (3/3) ... [2023-03-31 01:32:00,546 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c [2023-03-31 01:32:00,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:32:00,558 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:32:00,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:32:00,609 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;@3f0dc1ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:32:00,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:32:00,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 136 states have (on average 1.6764705882352942) internal successors, (228), 138 states have internal predecessors, (228), 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 01:32:00,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-03-31 01:32:00,630 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:00,631 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] [2023-03-31 01:32:00,632 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:00,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:00,637 INFO L85 PathProgramCache]: Analyzing trace with hash -113969347, now seen corresponding path program 1 times [2023-03-31 01:32:00,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:00,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791007932] [2023-03-31 01:32:00,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:00,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:01,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:01,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:01,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:32:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:01,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-03-31 01:32:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-03-31 01:32:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:01,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 01:32:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:01,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:32:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:01,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-03-31 01:32:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:01,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:32:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:01,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-03-31 01:32:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:01,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:32:01,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:01,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791007932] [2023-03-31 01:32:01,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791007932] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:01,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:01,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:32:01,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035332334] [2023-03-31 01:32:01,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:01,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:32:01,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:01,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:32:01,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:32:01,472 INFO L87 Difference]: Start difference. First operand has 162 states, 136 states have (on average 1.6764705882352942) internal successors, (228), 138 states have internal predecessors, (228), 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 5.777777777777778) internal successors, (52), 2 states have internal predecessors, (52), 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 01:32:02,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:02,623 INFO L93 Difference]: Finished difference Result 270 states and 410 transitions. [2023-03-31 01:32:02,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 01:32:02,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 2 states have internal predecessors, (52), 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 74 [2023-03-31 01:32:02,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:02,637 INFO L225 Difference]: With dead ends: 270 [2023-03-31 01:32:02,637 INFO L226 Difference]: Without dead ends: 164 [2023-03-31 01:32:02,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:32:02,651 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 681 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:02,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 60 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:32:02,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-03-31 01:32:02,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 157. [2023-03-31 01:32:02,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 133 states have (on average 1.6616541353383458) internal successors, (221), 134 states have internal predecessors, (221), 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 01:32:02,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 244 transitions. [2023-03-31 01:32:02,728 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 244 transitions. Word has length 74 [2023-03-31 01:32:02,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:02,729 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 244 transitions. [2023-03-31 01:32:02,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 2 states have internal predecessors, (52), 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 01:32:02,730 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 244 transitions. [2023-03-31 01:32:02,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-03-31 01:32:02,738 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:02,739 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] [2023-03-31 01:32:02,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:32:02,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:02,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:02,746 INFO L85 PathProgramCache]: Analyzing trace with hash 446730431, now seen corresponding path program 1 times [2023-03-31 01:32:02,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:02,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338560040] [2023-03-31 01:32:02,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:02,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:32:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-03-31 01:32:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-03-31 01:32:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 01:32:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:32:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-03-31 01:32:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:32:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-03-31 01:32:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,248 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 01:32:03,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:03,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338560040] [2023-03-31 01:32:03,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338560040] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:03,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:03,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-03-31 01:32:03,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180937121] [2023-03-31 01:32:03,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:03,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-31 01:32:03,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:03,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-31 01:32:03,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:32:03,251 INFO L87 Difference]: Start difference. First operand 157 states and 244 transitions. Second operand has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 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 01:32:05,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:05,329 INFO L93 Difference]: Finished difference Result 268 states and 402 transitions. [2023-03-31 01:32:05,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-03-31 01:32:05,330 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 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 74 [2023-03-31 01:32:05,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:05,332 INFO L225 Difference]: With dead ends: 268 [2023-03-31 01:32:05,332 INFO L226 Difference]: Without dead ends: 164 [2023-03-31 01:32:05,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:32:05,334 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1212 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:05,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 156 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 01:32:05,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-03-31 01:32:05,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 157. [2023-03-31 01:32:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 133 states have (on average 1.3533834586466165) internal successors, (180), 134 states have internal predecessors, (180), 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 01:32:05,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 203 transitions. [2023-03-31 01:32:05,355 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 203 transitions. Word has length 74 [2023-03-31 01:32:05,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:05,356 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 203 transitions. [2023-03-31 01:32:05,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 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 01:32:05,356 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 203 transitions. [2023-03-31 01:32:05,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-03-31 01:32:05,357 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:05,357 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] [2023-03-31 01:32:05,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:32:05,358 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:05,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:05,358 INFO L85 PathProgramCache]: Analyzing trace with hash -360204619, now seen corresponding path program 1 times [2023-03-31 01:32:05,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:05,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587216146] [2023-03-31 01:32:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:05,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-03-31 01:32:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 01:32:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-03-31 01:32:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:32:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-03-31 01:32:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-03-31 01:32:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-03-31 01:32:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-03-31 01:32:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,397 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 01:32:06,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:06,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587216146] [2023-03-31 01:32:06,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587216146] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:06,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:06,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-03-31 01:32:06,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952069913] [2023-03-31 01:32:06,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:06,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-03-31 01:32:06,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:06,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-03-31 01:32:06,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-03-31 01:32:06,403 INFO L87 Difference]: Start difference. First operand 157 states and 203 transitions. Second operand has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 15 states have internal predecessors, (92), 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 01:32:18,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:18,567 INFO L93 Difference]: Finished difference Result 1576 states and 2277 transitions. [2023-03-31 01:32:18,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-03-31 01:32:18,567 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 15 states have internal predecessors, (92), 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 114 [2023-03-31 01:32:18,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:18,580 INFO L225 Difference]: With dead ends: 1576 [2023-03-31 01:32:18,581 INFO L226 Difference]: Without dead ends: 1478 [2023-03-31 01:32:18,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7430 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=3498, Invalid=17094, Unknown=0, NotChecked=0, Total=20592 [2023-03-31 01:32:18,590 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 7320 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 4094 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7334 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 4595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 4094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:18,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7334 Valid, 231 Invalid, 4595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 4094 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-03-31 01:32:18,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2023-03-31 01:32:18,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1363. [2023-03-31 01:32:18,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1125 states have (on average 1.5253333333333334) internal successors, (1716), 1148 states have internal predecessors, (1716), 108 states have call successors, (108), 108 states have call predecessors, (108), 129 states have return successors, (191), 107 states have call predecessors, (191), 107 states have call successors, (191) [2023-03-31 01:32:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 2015 transitions. [2023-03-31 01:32:18,785 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 2015 transitions. Word has length 114 [2023-03-31 01:32:18,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:18,786 INFO L495 AbstractCegarLoop]: Abstraction has 1363 states and 2015 transitions. [2023-03-31 01:32:18,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 15 states have internal predecessors, (92), 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 01:32:18,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 2015 transitions. [2023-03-31 01:32:18,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-03-31 01:32:18,793 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:18,794 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] [2023-03-31 01:32:18,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:32:18,797 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:18,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:18,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1355550261, now seen corresponding path program 1 times [2023-03-31 01:32:18,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:18,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000361740] [2023-03-31 01:32:18,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:18,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:19,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:19,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-03-31 01:32:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:19,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 01:32:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-03-31 01:32:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:19,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:32:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:19,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-03-31 01:32:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:19,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-03-31 01:32:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:19,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-03-31 01:32:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:19,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-03-31 01:32:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:19,555 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 01:32:19,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:19,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000361740] [2023-03-31 01:32:19,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000361740] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:19,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:19,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-03-31 01:32:19,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991608843] [2023-03-31 01:32:19,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:19,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-03-31 01:32:19,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:19,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-03-31 01:32:19,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:32:19,558 INFO L87 Difference]: Start difference. First operand 1363 states and 2015 transitions. Second operand has 19 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 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 01:32:22,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:22,197 INFO L93 Difference]: Finished difference Result 1602 states and 2364 transitions. [2023-03-31 01:32:22,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:32:22,197 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 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 115 [2023-03-31 01:32:22,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:22,206 INFO L225 Difference]: With dead ends: 1602 [2023-03-31 01:32:22,206 INFO L226 Difference]: Without dead ends: 1600 [2023-03-31 01:32:22,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2023-03-31 01:32:22,208 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 804 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 2538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:22,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 330 Invalid, 2538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-03-31 01:32:22,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2023-03-31 01:32:22,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1426. [2023-03-31 01:32:22,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1167 states have (on average 1.506426735218509) internal successors, (1758), 1197 states have internal predecessors, (1758), 115 states have call successors, (115), 115 states have call predecessors, (115), 143 states have return successors, (205), 114 states have call predecessors, (205), 114 states have call successors, (205) [2023-03-31 01:32:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2078 transitions. [2023-03-31 01:32:22,395 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2078 transitions. Word has length 115 [2023-03-31 01:32:22,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:22,396 INFO L495 AbstractCegarLoop]: Abstraction has 1426 states and 2078 transitions. [2023-03-31 01:32:22,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 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 01:32:22,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2078 transitions. [2023-03-31 01:32:22,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-03-31 01:32:22,398 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:22,398 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] [2023-03-31 01:32:22,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:32:22,399 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:22,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:22,399 INFO L85 PathProgramCache]: Analyzing trace with hash -566508723, now seen corresponding path program 1 times [2023-03-31 01:32:22,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:22,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514808713] [2023-03-31 01:32:22,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:22,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:22,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:22,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:22,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-03-31 01:32:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:22,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 01:32:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-03-31 01:32:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:32:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:22,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-03-31 01:32:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:22,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-03-31 01:32:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-03-31 01:32:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:22,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-03-31 01:32:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:22,907 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 01:32:22,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:22,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514808713] [2023-03-31 01:32:22,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514808713] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:22,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:22,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-03-31 01:32:22,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460576957] [2023-03-31 01:32:22,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:22,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 01:32:22,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:22,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 01:32:22,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-03-31 01:32:22,909 INFO L87 Difference]: Start difference. First operand 1426 states and 2078 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 5 states have internal predecessors, (94), 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 01:32:25,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:25,915 INFO L93 Difference]: Finished difference Result 5303 states and 7773 transitions. [2023-03-31 01:32:25,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-03-31 01:32:25,915 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 5 states have internal predecessors, (94), 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 116 [2023-03-31 01:32:25,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:25,933 INFO L225 Difference]: With dead ends: 5303 [2023-03-31 01:32:25,933 INFO L226 Difference]: Without dead ends: 3936 [2023-03-31 01:32:25,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=262, Invalid=794, Unknown=0, NotChecked=0, Total=1056 [2023-03-31 01:32:25,939 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1553 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:25,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 107 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-03-31 01:32:25,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2023-03-31 01:32:26,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3660. [2023-03-31 01:32:26,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3660 states, 2972 states have (on average 1.5131224764468372) internal successors, (4497), 3049 states have internal predecessors, (4497), 306 states have call successors, (306), 306 states have call predecessors, (306), 381 states have return successors, (600), 305 states have call predecessors, (600), 305 states have call successors, (600) [2023-03-31 01:32:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 5403 transitions. [2023-03-31 01:32:26,383 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 5403 transitions. Word has length 116 [2023-03-31 01:32:26,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:26,384 INFO L495 AbstractCegarLoop]: Abstraction has 3660 states and 5403 transitions. [2023-03-31 01:32:26,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 5 states have internal predecessors, (94), 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 01:32:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 5403 transitions. [2023-03-31 01:32:26,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-03-31 01:32:26,387 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:26,387 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] [2023-03-31 01:32:26,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:32:26,388 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:26,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:26,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1347912048, now seen corresponding path program 1 times [2023-03-31 01:32:26,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:26,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108723365] [2023-03-31 01:32:26,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:26,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:26,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:26,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-03-31 01:32:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:26,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 01:32:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:26,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-03-31 01:32:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:26,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:32:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:26,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-03-31 01:32:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:26,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:32:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:26,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-03-31 01:32:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:26,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 01:32:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:26,905 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 01:32:26,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:26,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108723365] [2023-03-31 01:32:26,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108723365] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:26,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:26,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-31 01:32:26,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931874377] [2023-03-31 01:32:26,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:26,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:32:26,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:26,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:32:26,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:32:26,910 INFO L87 Difference]: Start difference. First operand 3660 states and 5403 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 01:32:30,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:30,490 INFO L93 Difference]: Finished difference Result 9068 states and 13220 transitions. [2023-03-31 01:32:30,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-03-31 01:32:30,491 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 117 [2023-03-31 01:32:30,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:30,514 INFO L225 Difference]: With dead ends: 9068 [2023-03-31 01:32:30,514 INFO L226 Difference]: Without dead ends: 5467 [2023-03-31 01:32:30,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-03-31 01:32:30,523 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1837 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:30,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1837 Valid, 73 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 01:32:30,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5467 states. [2023-03-31 01:32:30,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5467 to 3874. [2023-03-31 01:32:30,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 3141 states have (on average 1.5122572429162686) internal successors, (4750), 3231 states have internal predecessors, (4750), 322 states have call successors, (322), 322 states have call predecessors, (322), 410 states have return successors, (636), 320 states have call predecessors, (636), 321 states have call successors, (636) [2023-03-31 01:32:31,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 5708 transitions. [2023-03-31 01:32:31,014 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 5708 transitions. Word has length 117 [2023-03-31 01:32:31,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:31,015 INFO L495 AbstractCegarLoop]: Abstraction has 3874 states and 5708 transitions. [2023-03-31 01:32:31,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 01:32:31,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 5708 transitions. [2023-03-31 01:32:31,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-03-31 01:32:31,020 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:31,020 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] [2023-03-31 01:32:31,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:32:31,020 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:31,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:31,020 INFO L85 PathProgramCache]: Analyzing trace with hash 2127357240, now seen corresponding path program 1 times [2023-03-31 01:32:31,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:31,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787177687] [2023-03-31 01:32:31,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:31,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:31,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:31,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:31,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-03-31 01:32:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:31,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 01:32:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:31,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-03-31 01:32:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:32:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:31,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-03-31 01:32:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:31,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-03-31 01:32:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:31,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-03-31 01:32:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:31,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 01:32:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:31,516 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 01:32:31,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:31,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787177687] [2023-03-31 01:32:31,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787177687] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:31,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:31,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-31 01:32:31,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009046169] [2023-03-31 01:32:31,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:31,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:32:31,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:31,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:32:31,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:32:31,519 INFO L87 Difference]: Start difference. First operand 3874 states and 5708 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 01:32:34,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:34,827 INFO L93 Difference]: Finished difference Result 8692 states and 12597 transitions. [2023-03-31 01:32:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-03-31 01:32:34,828 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 117 [2023-03-31 01:32:34,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:34,849 INFO L225 Difference]: With dead ends: 8692 [2023-03-31 01:32:34,849 INFO L226 Difference]: Without dead ends: 5028 [2023-03-31 01:32:34,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-03-31 01:32:34,858 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2285 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:34,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2285 Valid, 72 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 01:32:34,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5028 states. [2023-03-31 01:32:35,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5028 to 3965. [2023-03-31 01:32:35,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3218 states have (on average 1.5108763206960845) internal successors, (4862), 3308 states have internal predecessors, (4862), 329 states have call successors, (329), 329 states have call predecessors, (329), 417 states have return successors, (643), 327 states have call predecessors, (643), 328 states have call successors, (643) [2023-03-31 01:32:35,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5834 transitions. [2023-03-31 01:32:35,351 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5834 transitions. Word has length 117 [2023-03-31 01:32:35,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:35,351 INFO L495 AbstractCegarLoop]: Abstraction has 3965 states and 5834 transitions. [2023-03-31 01:32:35,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 01:32:35,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5834 transitions. [2023-03-31 01:32:35,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-03-31 01:32:35,354 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:35,355 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] [2023-03-31 01:32:35,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:32:35,355 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:35,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:35,356 INFO L85 PathProgramCache]: Analyzing trace with hash -756366647, now seen corresponding path program 1 times [2023-03-31 01:32:35,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:35,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513125966] [2023-03-31 01:32:35,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:35,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:35,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:35,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-03-31 01:32:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:35,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 01:32:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:35,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-03-31 01:32:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:35,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:32:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:35,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-03-31 01:32:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:35,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-03-31 01:32:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-03-31 01:32:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:35,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 01:32:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:35,789 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 01:32:35,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:35,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513125966] [2023-03-31 01:32:35,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513125966] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:35,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:35,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-31 01:32:35,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964463815] [2023-03-31 01:32:35,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:35,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:32:35,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:35,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:32:35,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:32:35,791 INFO L87 Difference]: Start difference. First operand 3965 states and 5834 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 01:32:39,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:39,013 INFO L93 Difference]: Finished difference Result 8221 states and 11882 transitions. [2023-03-31 01:32:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-03-31 01:32:39,015 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 117 [2023-03-31 01:32:39,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:39,036 INFO L225 Difference]: With dead ends: 8221 [2023-03-31 01:32:39,037 INFO L226 Difference]: Without dead ends: 4557 [2023-03-31 01:32:39,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-03-31 01:32:39,047 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2514 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2514 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:39,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2514 Valid, 68 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-03-31 01:32:39,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4557 states. [2023-03-31 01:32:39,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4557 to 4056. [2023-03-31 01:32:39,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4056 states, 3295 states have (on average 1.5095599393019727) internal successors, (4974), 3385 states have internal predecessors, (4974), 336 states have call successors, (336), 336 states have call predecessors, (336), 424 states have return successors, (650), 334 states have call predecessors, (650), 335 states have call successors, (650) [2023-03-31 01:32:39,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 5960 transitions. [2023-03-31 01:32:39,550 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 5960 transitions. Word has length 117 [2023-03-31 01:32:39,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:39,550 INFO L495 AbstractCegarLoop]: Abstraction has 4056 states and 5960 transitions. [2023-03-31 01:32:39,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 01:32:39,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 5960 transitions. [2023-03-31 01:32:39,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-03-31 01:32:39,553 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:39,553 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] [2023-03-31 01:32:39,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:32:39,553 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:39,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:39,554 INFO L85 PathProgramCache]: Analyzing trace with hash 974284009, now seen corresponding path program 1 times [2023-03-31 01:32:39,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:39,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443189616] [2023-03-31 01:32:39,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:39,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:39,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:39,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-03-31 01:32:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:39,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 01:32:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-03-31 01:32:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:32:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:39,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:32:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:39,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:32:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:40,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-03-31 01:32:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:40,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 01:32:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:40,028 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 01:32:40,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:40,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443189616] [2023-03-31 01:32:40,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443189616] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:40,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:40,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-31 01:32:40,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216757162] [2023-03-31 01:32:40,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:40,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:32:40,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:40,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:32:40,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:32:40,031 INFO L87 Difference]: Start difference. First operand 4056 states and 5960 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 01:32:43,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:43,649 INFO L93 Difference]: Finished difference Result 10055 states and 14618 transitions. [2023-03-31 01:32:43,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-03-31 01:32:43,649 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 117 [2023-03-31 01:32:43,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:43,684 INFO L225 Difference]: With dead ends: 10055 [2023-03-31 01:32:43,684 INFO L226 Difference]: Without dead ends: 6174 [2023-03-31 01:32:43,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-03-31 01:32:43,698 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1809 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:43,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 73 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 01:32:43,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6174 states. [2023-03-31 01:32:44,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6174 to 4685. [2023-03-31 01:32:44,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4685 states, 3809 states have (on average 1.519558939354161) internal successors, (5788), 3930 states have internal predecessors, (5788), 378 states have call successors, (378), 378 states have call predecessors, (378), 497 states have return successors, (754), 376 states have call predecessors, (754), 377 states have call successors, (754) [2023-03-31 01:32:44,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4685 states to 4685 states and 6920 transitions. [2023-03-31 01:32:44,309 INFO L78 Accepts]: Start accepts. Automaton has 4685 states and 6920 transitions. Word has length 117 [2023-03-31 01:32:44,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:44,309 INFO L495 AbstractCegarLoop]: Abstraction has 4685 states and 6920 transitions. [2023-03-31 01:32:44,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 01:32:44,310 INFO L276 IsEmpty]: Start isEmpty. Operand 4685 states and 6920 transitions. [2023-03-31 01:32:44,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-03-31 01:32:44,312 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:44,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:32:44,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-03-31 01:32:44,312 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:44,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:44,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1052167907, now seen corresponding path program 1 times [2023-03-31 01:32:44,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:44,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631130323] [2023-03-31 01:32:44,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:44,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:44,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:44,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:44,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-03-31 01:32:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:44,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 01:32:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:44,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-03-31 01:32:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:44,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-03-31 01:32:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:44,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:32:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:44,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:32:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:44,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-03-31 01:32:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:44,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 01:32:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:44,773 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 01:32:44,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:44,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631130323] [2023-03-31 01:32:44,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631130323] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:44,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:44,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-31 01:32:44,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154119990] [2023-03-31 01:32:44,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:44,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:32:44,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:44,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:32:44,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:32:44,775 INFO L87 Difference]: Start difference. First operand 4685 states and 6920 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 01:32:48,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:48,298 INFO L93 Difference]: Finished difference Result 12681 states and 18588 transitions. [2023-03-31 01:32:48,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-03-31 01:32:48,298 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 117 [2023-03-31 01:32:48,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:48,327 INFO L225 Difference]: With dead ends: 12681 [2023-03-31 01:32:48,327 INFO L226 Difference]: Without dead ends: 8106 [2023-03-31 01:32:48,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2023-03-31 01:32:48,338 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1797 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1797 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:48,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1797 Valid, 73 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 01:32:48,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8106 states. [2023-03-31 01:32:48,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8106 to 4706. [2023-03-31 01:32:48,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4706 states, 3821 states have (on average 1.5215912064904475) internal successors, (5814), 3951 states have internal predecessors, (5814), 378 states have call successors, (378), 378 states have call predecessors, (378), 506 states have return successors, (772), 376 states have call predecessors, (772), 377 states have call successors, (772) [2023-03-31 01:32:48,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4706 states to 4706 states and 6964 transitions. [2023-03-31 01:32:48,991 INFO L78 Accepts]: Start accepts. Automaton has 4706 states and 6964 transitions. Word has length 117 [2023-03-31 01:32:48,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:48,991 INFO L495 AbstractCegarLoop]: Abstraction has 4706 states and 6964 transitions. [2023-03-31 01:32:48,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 9 states have internal predecessors, (95), 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 01:32:48,992 INFO L276 IsEmpty]: Start isEmpty. Operand 4706 states and 6964 transitions. [2023-03-31 01:32:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-03-31 01:32:48,993 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:48,993 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] [2023-03-31 01:32:48,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-03-31 01:32:48,993 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:48,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:48,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1549245043, now seen corresponding path program 1 times [2023-03-31 01:32:48,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:48,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4430181] [2023-03-31 01:32:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:48,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:49,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:49,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:49,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-03-31 01:32:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:49,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 01:32:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:32:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:49,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-03-31 01:32:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:49,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-03-31 01:32:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:49,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:32:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:49,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:32:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:32:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:49,483 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 01:32:49,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:49,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4430181] [2023-03-31 01:32:49,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4430181] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:49,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:49,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-03-31 01:32:49,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128470123] [2023-03-31 01:32:49,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:49,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 01:32:49,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:49,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 01:32:49,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-03-31 01:32:49,486 INFO L87 Difference]: Start difference. First operand 4706 states and 6964 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 5 states have internal predecessors, (96), 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)