/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.5.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:31:38,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:31:38,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:31:38,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:31:38,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:31:38,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:31:38,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:31:38,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:31:38,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:31:38,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:31:38,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:31:38,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:31:38,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:31:38,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:31:38,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:31:38,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:31:38,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:31:38,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:31:38,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:31:38,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:31:38,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:31:38,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:31:38,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:31:38,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:31:38,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:31:38,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:31:38,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:31:38,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:31:38,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:31:38,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:31:38,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:31:38,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:31:38,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:31:38,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:31:38,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:31:38,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:31:38,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:31:38,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:31:38,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:31:38,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:31:38,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:31:38,545 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 01:31:38,574 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:31:38,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:31:38,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:31:38,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:31:38,576 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:31:38,576 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:31:38,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:31:38,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:31:38,577 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:31:38,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:31:38,578 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:31:38,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:31:38,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:31:38,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:31:38,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:31:38,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:31:38,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:31:38,579 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:31:38,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:31:38,579 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:31:38,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:31:38,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:31:38,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:31:38,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:31:38,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:31:38,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:31:38,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:31:38,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:31:38,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:31:38,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:31:38,581 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:31:38,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:31:38,581 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:31:38,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:31:38,581 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:31:38,581 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:31:38,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:31:38,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:31:38,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:31:38,845 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:31:38,845 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:31:38,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c [2023-03-31 01:31:40,037 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:31:40,262 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:31:40,262 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c [2023-03-31 01:31:40,270 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20fc409e7/85af92dbb843422c9f8933f67606bccd/FLAG7ba069375 [2023-03-31 01:31:40,290 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20fc409e7/85af92dbb843422c9f8933f67606bccd [2023-03-31 01:31:40,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:31:40,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:31:40,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:31:40,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:31:40,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:31:40,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:31:40" (1/1) ... [2023-03-31 01:31:40,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b873c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40, skipping insertion in model container [2023-03-31 01:31:40,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:31:40" (1/1) ... [2023-03-31 01:31:40,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:31:40,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:31:40,580 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.5.1.ufo.UNBOUNDED.pals.c[12820,12833] [2023-03-31 01:31:40,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:31:40,594 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:31:40,664 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.5.1.ufo.UNBOUNDED.pals.c[12820,12833] [2023-03-31 01:31:40,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:31:40,691 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:31:40,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40 WrapperNode [2023-03-31 01:31:40,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:31:40,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:31:40,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:31:40,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:31:40,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40" (1/1) ... [2023-03-31 01:31:40,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40" (1/1) ... [2023-03-31 01:31:40,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40" (1/1) ... [2023-03-31 01:31:40,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40" (1/1) ... [2023-03-31 01:31:40,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40" (1/1) ... [2023-03-31 01:31:40,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40" (1/1) ... [2023-03-31 01:31:40,758 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40" (1/1) ... [2023-03-31 01:31:40,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40" (1/1) ... [2023-03-31 01:31:40,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:31:40,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:31:40,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:31:40,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:31:40,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40" (1/1) ... [2023-03-31 01:31:40,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:31:40,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:31:40,802 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 01:31:40,830 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 01:31:40,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:31:40,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:31:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:31:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:31:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-03-31 01:31:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-03-31 01:31:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-03-31 01:31:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-03-31 01:31:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-03-31 01:31:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 01:31:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 01:31:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:31:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:31:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:31:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:31:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:31:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:31:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:31:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:31:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 01:31:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:31:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:31:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:31:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:31:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:31:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:31:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:31:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:31:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-31 01:31:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:31:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:31:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:31:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:31:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:31:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:31:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:31:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:31:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:31:40,985 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:31:40,987 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:31:41,572 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:31:41,580 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:31:41,580 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:31:41,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:31:41 BoogieIcfgContainer [2023-03-31 01:31:41,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:31:41,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:31:41,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:31:41,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:31:41,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:31:40" (1/3) ... [2023-03-31 01:31:41,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7e4e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:31:41, skipping insertion in model container [2023-03-31 01:31:41,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:31:40" (2/3) ... [2023-03-31 01:31:41,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7e4e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:31:41, skipping insertion in model container [2023-03-31 01:31:41,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:31:41" (3/3) ... [2023-03-31 01:31:41,589 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c [2023-03-31 01:31:41,605 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:31:41,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:31:41,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:31:41,657 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;@76643e55, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:31:41,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:31:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 116 states have (on average 1.6551724137931034) internal successors, (192), 118 states have internal predecessors, (192), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-03-31 01:31:41,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-03-31 01:31:41,671 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:31:41,672 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] [2023-03-31 01:31:41,672 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:31:41,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:31:41,677 INFO L85 PathProgramCache]: Analyzing trace with hash 522266175, now seen corresponding path program 1 times [2023-03-31 01:31:41,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:31:41,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398621944] [2023-03-31 01:31:41,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:31:41,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:31:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:42,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:31:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:31:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:31:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:42,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-03-31 01:31:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:42,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-03-31 01:31:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:42,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 01:31:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:42,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:31:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:42,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-03-31 01:31:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 01:31:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:42,682 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 01:31:42,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:31:42,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398621944] [2023-03-31 01:31:42,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398621944] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:31:42,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:31:42,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-03-31 01:31:42,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232887129] [2023-03-31 01:31:42,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:31:42,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 01:31:42,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:31:42,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 01:31:42,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-03-31 01:31:42,726 INFO L87 Difference]: Start difference. First operand has 140 states, 116 states have (on average 1.6551724137931034) internal successors, (192), 118 states have internal predecessors, (192), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 01:31:44,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:31:44,635 INFO L93 Difference]: Finished difference Result 239 states and 358 transitions. [2023-03-31 01:31:44,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-31 01:31:44,639 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 67 [2023-03-31 01:31:44,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:31:44,652 INFO L225 Difference]: With dead ends: 239 [2023-03-31 01:31:44,652 INFO L226 Difference]: Without dead ends: 141 [2023-03-31 01:31:44,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-03-31 01:31:44,666 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 511 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:31:44,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 144 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 01:31:44,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-03-31 01:31:44,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 135. [2023-03-31 01:31:44,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.3539823008849559) internal successors, (153), 114 states have internal predecessors, (153), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-03-31 01:31:44,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 174 transitions. [2023-03-31 01:31:44,726 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 174 transitions. Word has length 67 [2023-03-31 01:31:44,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:31:44,726 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 174 transitions. [2023-03-31 01:31:44,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 01:31:44,727 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 174 transitions. [2023-03-31 01:31:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-03-31 01:31:44,730 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:31:44,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:31:44,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:31:44,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:31:44,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:31:44,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1733385975, now seen corresponding path program 1 times [2023-03-31 01:31:44,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:31:44,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605693941] [2023-03-31 01:31:44,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:31:44,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:31:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:45,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:31:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:45,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:31:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:45,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:31:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:45,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:31:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:45,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-03-31 01:31:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:45,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-03-31 01:31:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:45,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-03-31 01:31:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:45,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:31:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:45,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-03-31 01:31:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:45,548 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 01:31:45,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:31:45,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605693941] [2023-03-31 01:31:45,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605693941] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:31:45,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:31:45,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-03-31 01:31:45,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290101235] [2023-03-31 01:31:45,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:31:45,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-03-31 01:31:45,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:31:45,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-03-31 01:31:45,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:31:45,552 INFO L87 Difference]: Start difference. First operand 135 states and 174 transitions. Second operand has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-03-31 01:31:53,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:31:53,246 INFO L93 Difference]: Finished difference Result 1174 states and 1682 transitions. [2023-03-31 01:31:53,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-03-31 01:31:53,247 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2023-03-31 01:31:53,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:31:53,265 INFO L225 Difference]: With dead ends: 1174 [2023-03-31 01:31:53,266 INFO L226 Difference]: Without dead ends: 1089 [2023-03-31 01:31:53,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3942 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2140, Invalid=9416, Unknown=0, NotChecked=0, Total=11556 [2023-03-31 01:31:53,273 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 4985 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2695 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4997 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 2695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:31:53,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4997 Valid, 179 Invalid, 3148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 2695 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-03-31 01:31:53,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2023-03-31 01:31:53,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1003. [2023-03-31 01:31:53,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 825 states have (on average 1.5127272727272727) internal successors, (1248), 842 states have internal predecessors, (1248), 81 states have call successors, (81), 81 states have call predecessors, (81), 96 states have return successors, (140), 80 states have call predecessors, (140), 80 states have call successors, (140) [2023-03-31 01:31:53,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1469 transitions. [2023-03-31 01:31:53,437 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1469 transitions. Word has length 98 [2023-03-31 01:31:53,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:31:53,438 INFO L495 AbstractCegarLoop]: Abstraction has 1003 states and 1469 transitions. [2023-03-31 01:31:53,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-03-31 01:31:53,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1469 transitions. [2023-03-31 01:31:53,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-03-31 01:31:53,442 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:31:53,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:31:53,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:31:53,449 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:31:53,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:31:53,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1481829726, now seen corresponding path program 1 times [2023-03-31 01:31:53,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:31:53,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467007131] [2023-03-31 01:31:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:31:53,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:31:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:53,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:31:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:53,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:31:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:53,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:31:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:53,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:31:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:54,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-03-31 01:31:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:54,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-03-31 01:31:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:54,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-03-31 01:31:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:54,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:31:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:54,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-03-31 01:31:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:54,124 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 01:31:54,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:31:54,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467007131] [2023-03-31 01:31:54,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467007131] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:31:54,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:31:54,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-03-31 01:31:54,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144973409] [2023-03-31 01:31:54,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:31:54,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-03-31 01:31:54,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:31:54,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-03-31 01:31:54,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2023-03-31 01:31:54,127 INFO L87 Difference]: Start difference. First operand 1003 states and 1469 transitions. Second operand has 18 states, 16 states have (on average 4.9375) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-03-31 01:31:56,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:31:56,077 INFO L93 Difference]: Finished difference Result 1190 states and 1738 transitions. [2023-03-31 01:31:56,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-03-31 01:31:56,077 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.9375) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2023-03-31 01:31:56,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:31:56,084 INFO L225 Difference]: With dead ends: 1190 [2023-03-31 01:31:56,084 INFO L226 Difference]: Without dead ends: 1188 [2023-03-31 01:31:56,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=167, Invalid=703, Unknown=0, NotChecked=0, Total=870 [2023-03-31 01:31:56,086 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 536 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 2133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:31:56,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 301 Invalid, 2133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 01:31:56,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2023-03-31 01:31:56,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1057. [2023-03-31 01:31:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 861 states have (on average 1.4912891986062717) internal successors, (1284), 884 states have internal predecessors, (1284), 87 states have call successors, (87), 87 states have call predecessors, (87), 108 states have return successors, (152), 86 states have call predecessors, (152), 86 states have call successors, (152) [2023-03-31 01:31:56,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1523 transitions. [2023-03-31 01:31:56,209 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1523 transitions. Word has length 99 [2023-03-31 01:31:56,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:31:56,209 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1523 transitions. [2023-03-31 01:31:56,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.9375) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-03-31 01:31:56,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1523 transitions. [2023-03-31 01:31:56,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-03-31 01:31:56,212 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:31:56,212 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] [2023-03-31 01:31:56,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:31:56,213 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:31:56,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:31:56,213 INFO L85 PathProgramCache]: Analyzing trace with hash -789283281, now seen corresponding path program 1 times [2023-03-31 01:31:56,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:31:56,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208184743] [2023-03-31 01:31:56,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:31:56,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:31:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:31:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:56,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:31:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:56,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:31:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:56,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:31:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:56,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-03-31 01:31:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:56,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-03-31 01:31:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:56,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-03-31 01:31:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:56,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:31:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:56,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-03-31 01:31:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:56,662 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 01:31:56,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:31:56,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208184743] [2023-03-31 01:31:56,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208184743] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:31:56,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:31:56,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:31:56,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755641471] [2023-03-31 01:31:56,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:31:56,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:31:56,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:31:56,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:31:56,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:31:56,665 INFO L87 Difference]: Start difference. First operand 1057 states and 1523 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-03-31 01:31:58,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:31:58,712 INFO L93 Difference]: Finished difference Result 3850 states and 5598 transitions. [2023-03-31 01:31:58,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-03-31 01:31:58,713 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2023-03-31 01:31:58,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:31:58,728 INFO L225 Difference]: With dead ends: 3850 [2023-03-31 01:31:58,729 INFO L226 Difference]: Without dead ends: 2843 [2023-03-31 01:31:58,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2023-03-31 01:31:58,743 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 1287 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:31:58,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 91 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 01:31:58,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2023-03-31 01:31:59,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2642. [2023-03-31 01:31:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 2134 states have (on average 1.4971883786316775) internal successors, (3195), 2191 states have internal predecessors, (3195), 226 states have call successors, (226), 226 states have call predecessors, (226), 281 states have return successors, (441), 225 states have call predecessors, (441), 225 states have call successors, (441) [2023-03-31 01:31:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 3862 transitions. [2023-03-31 01:31:59,032 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 3862 transitions. Word has length 100 [2023-03-31 01:31:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:31:59,033 INFO L495 AbstractCegarLoop]: Abstraction has 2642 states and 3862 transitions. [2023-03-31 01:31:59,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-03-31 01:31:59,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 3862 transitions. [2023-03-31 01:31:59,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-03-31 01:31:59,036 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:31:59,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:31:59,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:31:59,037 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:31:59,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:31:59,037 INFO L85 PathProgramCache]: Analyzing trace with hash 723028559, now seen corresponding path program 1 times [2023-03-31 01:31:59,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:31:59,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59277055] [2023-03-31 01:31:59,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:31:59,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:31:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:31:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:59,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:31:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:59,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:31:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:59,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:31:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:59,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-03-31 01:31:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:59,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-03-31 01:31:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-03-31 01:31:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:59,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:31:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:59,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:31:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:31:59,483 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 01:31:59,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:31:59,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59277055] [2023-03-31 01:31:59,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59277055] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:31:59,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:31:59,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-03-31 01:31:59,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329226594] [2023-03-31 01:31:59,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:31:59,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-31 01:31:59,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:31:59,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-31 01:31:59,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:31:59,486 INFO L87 Difference]: Start difference. First operand 2642 states and 3862 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-03-31 01:32:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:02,302 INFO L93 Difference]: Finished difference Result 6647 states and 9616 transitions. [2023-03-31 01:32:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-03-31 01:32:02,302 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-03-31 01:32:02,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:02,322 INFO L225 Difference]: With dead ends: 6647 [2023-03-31 01:32:02,322 INFO L226 Difference]: Without dead ends: 4055 [2023-03-31 01:32:02,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-03-31 01:32:02,331 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1886 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:02,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 66 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:32:02,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4055 states. [2023-03-31 01:32:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4055 to 2763. [2023-03-31 01:32:02,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2228 states have (on average 1.4955116696588868) internal successors, (3332), 2294 states have internal predecessors, (3332), 235 states have call successors, (235), 235 states have call predecessors, (235), 299 states have return successors, (464), 233 states have call predecessors, (464), 234 states have call successors, (464) [2023-03-31 01:32:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4031 transitions. [2023-03-31 01:32:02,682 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4031 transitions. Word has length 101 [2023-03-31 01:32:02,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:02,683 INFO L495 AbstractCegarLoop]: Abstraction has 2763 states and 4031 transitions. [2023-03-31 01:32:02,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-03-31 01:32:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4031 transitions. [2023-03-31 01:32:02,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-03-31 01:32:02,687 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:02,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:32:02,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:32:02,688 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:02,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:02,688 INFO L85 PathProgramCache]: Analyzing trace with hash -358014430, now seen corresponding path program 1 times [2023-03-31 01:32:02,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:02,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154255575] [2023-03-31 01:32:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:02,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:02,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:02,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:02,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:32:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:02,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:32:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:02,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-03-31 01:32:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-03-31 01:32:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-03-31 01:32:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:32:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:32:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:03,092 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 01:32:03,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:03,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154255575] [2023-03-31 01:32:03,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154255575] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:03,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:03,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-03-31 01:32:03,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783720121] [2023-03-31 01:32:03,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:03,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-31 01:32:03,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:03,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-31 01:32:03,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:32:03,095 INFO L87 Difference]: Start difference. First operand 2763 states and 4031 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-03-31 01:32:05,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:05,706 INFO L93 Difference]: Finished difference Result 5944 states and 8514 transitions. [2023-03-31 01:32:05,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-03-31 01:32:05,706 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-03-31 01:32:05,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:05,722 INFO L225 Difference]: With dead ends: 5944 [2023-03-31 01:32:05,723 INFO L226 Difference]: Without dead ends: 3307 [2023-03-31 01:32:05,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-03-31 01:32:05,730 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1512 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:05,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 63 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-03-31 01:32:05,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2023-03-31 01:32:06,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 2921. [2023-03-31 01:32:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2358 states have (on average 1.4961832061068703) internal successors, (3528), 2428 states have internal predecessors, (3528), 247 states have call successors, (247), 247 states have call predecessors, (247), 315 states have return successors, (482), 245 states have call predecessors, (482), 246 states have call successors, (482) [2023-03-31 01:32:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4257 transitions. [2023-03-31 01:32:06,088 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4257 transitions. Word has length 101 [2023-03-31 01:32:06,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:06,089 INFO L495 AbstractCegarLoop]: Abstraction has 2921 states and 4257 transitions. [2023-03-31 01:32:06,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-03-31 01:32:06,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4257 transitions. [2023-03-31 01:32:06,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-03-31 01:32:06,091 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:06,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:32:06,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:32:06,092 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:06,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:06,093 INFO L85 PathProgramCache]: Analyzing trace with hash -568174806, now seen corresponding path program 1 times [2023-03-31 01:32:06,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:06,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75553131] [2023-03-31 01:32:06,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:06,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:32:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:32:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-03-31 01:32:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-03-31 01:32:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-03-31 01:32:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:32:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:32:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:06,583 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 01:32:06,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:06,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75553131] [2023-03-31 01:32:06,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75553131] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:06,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:06,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-03-31 01:32:06,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795730856] [2023-03-31 01:32:06,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:06,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-31 01:32:06,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:06,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-31 01:32:06,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:32:06,586 INFO L87 Difference]: Start difference. First operand 2921 states and 4257 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-03-31 01:32:09,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:09,143 INFO L93 Difference]: Finished difference Result 6467 states and 9277 transitions. [2023-03-31 01:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-03-31 01:32:09,144 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-03-31 01:32:09,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:09,160 INFO L225 Difference]: With dead ends: 6467 [2023-03-31 01:32:09,161 INFO L226 Difference]: Without dead ends: 3777 [2023-03-31 01:32:09,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-03-31 01:32:09,168 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1976 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1976 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:09,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1976 Valid, 62 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:32:09,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3777 states. [2023-03-31 01:32:09,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3088. [2023-03-31 01:32:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 2492 states have (on average 1.4967897271268058) internal successors, (3730), 2575 states have internal predecessors, (3730), 257 states have call successors, (257), 257 states have call predecessors, (257), 338 states have return successors, (510), 255 states have call predecessors, (510), 256 states have call successors, (510) [2023-03-31 01:32:09,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 4497 transitions. [2023-03-31 01:32:09,534 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 4497 transitions. Word has length 101 [2023-03-31 01:32:09,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:09,535 INFO L495 AbstractCegarLoop]: Abstraction has 3088 states and 4497 transitions. [2023-03-31 01:32:09,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-03-31 01:32:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 4497 transitions. [2023-03-31 01:32:09,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-03-31 01:32:09,537 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:09,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:32:09,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:32:09,537 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:09,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:09,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1315341204, now seen corresponding path program 1 times [2023-03-31 01:32:09,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:09,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406096941] [2023-03-31 01:32:09,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:09,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:09,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:09,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:09,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:32:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:09,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:32:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:09,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-03-31 01:32:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:09,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-03-31 01:32:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:09,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-03-31 01:32:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:09,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:32:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:09,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 01:32:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:09,971 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 01:32:09,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:09,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406096941] [2023-03-31 01:32:09,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406096941] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:09,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:09,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-03-31 01:32:09,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810894337] [2023-03-31 01:32:09,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:09,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-31 01:32:09,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:09,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-31 01:32:09,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:32:09,973 INFO L87 Difference]: Start difference. First operand 3088 states and 4497 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-03-31 01:32:12,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:12,461 INFO L93 Difference]: Finished difference Result 8007 states and 11571 transitions. [2023-03-31 01:32:12,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-03-31 01:32:12,462 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-03-31 01:32:12,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:12,487 INFO L225 Difference]: With dead ends: 8007 [2023-03-31 01:32:12,487 INFO L226 Difference]: Without dead ends: 5020 [2023-03-31 01:32:12,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-03-31 01:32:12,496 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1574 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:12,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 66 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:32:12,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5020 states. [2023-03-31 01:32:12,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5020 to 3356. [2023-03-31 01:32:12,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 2712 states have (on average 1.5066371681415929) internal successors, (4086), 2807 states have internal predecessors, (4086), 275 states have call successors, (275), 275 states have call predecessors, (275), 368 states have return successors, (558), 273 states have call predecessors, (558), 274 states have call successors, (558) [2023-03-31 01:32:12,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 4919 transitions. [2023-03-31 01:32:12,907 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 4919 transitions. Word has length 101 [2023-03-31 01:32:12,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:12,908 INFO L495 AbstractCegarLoop]: Abstraction has 3356 states and 4919 transitions. [2023-03-31 01:32:12,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-03-31 01:32:12,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 4919 transitions. [2023-03-31 01:32:12,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-03-31 01:32:12,909 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:12,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:32:12,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:32:12,910 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:12,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:12,911 INFO L85 PathProgramCache]: Analyzing trace with hash -443147479, now seen corresponding path program 1 times [2023-03-31 01:32:12,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:12,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126288869] [2023-03-31 01:32:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:12,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:13,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:13,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:13,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:32:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:13,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:32:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 01:32:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:13,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-03-31 01:32:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:13,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:32:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-03-31 01:32:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:13,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-03-31 01:32:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:13,300 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 01:32:13,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:13,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126288869] [2023-03-31 01:32:13,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126288869] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:13,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:13,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:32:13,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911122396] [2023-03-31 01:32:13,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:13,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:32:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:13,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:32:13,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:32:13,302 INFO L87 Difference]: Start difference. First operand 3356 states and 4919 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 01:32:15,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:15,137 INFO L93 Difference]: Finished difference Result 7098 states and 10307 transitions. [2023-03-31 01:32:15,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-03-31 01:32:15,138 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 102 [2023-03-31 01:32:15,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:15,168 INFO L225 Difference]: With dead ends: 7098 [2023-03-31 01:32:15,168 INFO L226 Difference]: Without dead ends: 4785 [2023-03-31 01:32:15,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:32:15,177 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 867 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:15,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 90 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:32:15,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2023-03-31 01:32:15,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 3861. [2023-03-31 01:32:15,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3861 states, 3103 states have (on average 1.4901708024492426) internal successors, (4624), 3182 states have internal predecessors, (4624), 340 states have call successors, (340), 340 states have call predecessors, (340), 417 states have return successors, (642), 338 states have call predecessors, (642), 339 states have call successors, (642) [2023-03-31 01:32:15,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 5606 transitions. [2023-03-31 01:32:15,734 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 5606 transitions. Word has length 102 [2023-03-31 01:32:15,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:32:15,735 INFO L495 AbstractCegarLoop]: Abstraction has 3861 states and 5606 transitions. [2023-03-31 01:32:15,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 01:32:15,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 5606 transitions. [2023-03-31 01:32:15,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-03-31 01:32:15,742 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:32:15,742 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:15,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-03-31 01:32:15,742 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:32:15,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:32:15,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1136101563, now seen corresponding path program 1 times [2023-03-31 01:32:15,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:32:15,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644330139] [2023-03-31 01:32:15,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:32:15,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:32:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:32:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:32:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:32:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:32:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-03-31 01:32:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-03-31 01:32:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-03-31 01:32:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:32:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-03-31 01:32:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-03-31 01:32:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-03-31 01:32:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-03-31 01:32:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-03-31 01:32:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-03-31 01:32:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-03-31 01:32:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-03-31 01:32:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:32:16,596 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-03-31 01:32:16,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:32:16,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644330139] [2023-03-31 01:32:16,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644330139] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:32:16,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:32:16,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-03-31 01:32:16,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935122580] [2023-03-31 01:32:16,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:32:16,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-03-31 01:32:16,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:32:16,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-03-31 01:32:16,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:32:16,598 INFO L87 Difference]: Start difference. First operand 3861 states and 5606 transitions. Second operand has 19 states, 19 states have (on average 4.894736842105263) internal successors, (93), 13 states have internal predecessors, (93), 4 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:32:28,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:32:28,883 INFO L93 Difference]: Finished difference Result 9228 states and 13301 transitions. [2023-03-31 01:32:28,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2023-03-31 01:32:28,884 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.894736842105263) internal successors, (93), 13 states have internal predecessors, (93), 4 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2023-03-31 01:32:28,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:32:28,910 INFO L225 Difference]: With dead ends: 9228 [2023-03-31 01:32:28,910 INFO L226 Difference]: Without dead ends: 7301 [2023-03-31 01:32:28,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12062 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=4059, Invalid=26391, Unknown=0, NotChecked=0, Total=30450 [2023-03-31 01:32:28,924 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 5808 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 3968 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5828 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 4541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 573 IncrementalHoareTripleChecker+Valid, 3968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:32:28,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5828 Valid, 243 Invalid, 4541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [573 Valid, 3968 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-03-31 01:32:28,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states.