/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_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:57:26,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:57:26,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:57:26,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:57:26,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:57:26,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:57:26,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:57:26,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:57:26,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:57:26,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:57:26,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:57:26,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:57:26,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:57:26,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:57:26,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:57:26,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:57:26,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:57:26,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:57:26,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:57:26,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:57:26,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:57:26,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:57:26,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:57:26,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:57:26,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:57:26,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:57:26,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:57:26,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:57:26,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:57:26,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:57:26,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:57:26,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:57:26,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:57:26,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:57:26,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:57:26,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:57:26,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:57:26,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:57:26,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:57:26,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:57:26,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:57:26,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 04:57:26,648 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:57:26,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:57:26,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:57:26,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:57:26,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:57:26,650 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:57:26,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:57:26,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:57:26,651 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:57:26,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:57:26,652 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:57:26,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:57:26,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:57:26,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:57:26,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:57:26,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:57:26,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:57:26,653 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:57:26,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:57:26,653 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:57:26,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:57:26,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:57:26,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:57:26,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:57:26,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:57:26,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:57:26,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:57:26,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:57:26,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:57:26,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:57:26,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:57:26,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:57:26,655 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:57:26,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:57:26,655 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:57:26,655 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:57:26,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:57:26,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:57:26,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:57:26,916 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:57:26,916 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:57:26,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2023-04-02 04:57:28,065 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:57:28,274 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:57:28,274 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2023-04-02 04:57:28,287 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce715f9fa/2b1d88d98bcc43ec836bbb102ce7d0e6/FLAGaeeb96220 [2023-04-02 04:57:28,299 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce715f9fa/2b1d88d98bcc43ec836bbb102ce7d0e6 [2023-04-02 04:57:28,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:57:28,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:57:28,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:57:28,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:57:28,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:57:28,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:57:28" (1/1) ... [2023-04-02 04:57:28,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd1b3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28, skipping insertion in model container [2023-04-02 04:57:28,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:57:28" (1/1) ... [2023-04-02 04:57:28,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:57:28,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:57:28,529 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_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c[14702,14715] [2023-04-02 04:57:28,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:57:28,547 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:57:28,608 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_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c[14702,14715] [2023-04-02 04:57:28,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:57:28,625 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:57:28,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28 WrapperNode [2023-04-02 04:57:28,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:57:28,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:57:28,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:57:28,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:57:28,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28" (1/1) ... [2023-04-02 04:57:28,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28" (1/1) ... [2023-04-02 04:57:28,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28" (1/1) ... [2023-04-02 04:57:28,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28" (1/1) ... [2023-04-02 04:57:28,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28" (1/1) ... [2023-04-02 04:57:28,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28" (1/1) ... [2023-04-02 04:57:28,680 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28" (1/1) ... [2023-04-02 04:57:28,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28" (1/1) ... [2023-04-02 04:57:28,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:57:28,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:57:28,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:57:28,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:57:28,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28" (1/1) ... [2023-04-02 04:57:28,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:57:28,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:57:28,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 04:57:28,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:57:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:57:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:57:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:57:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 04:57:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2023-04-02 04:57:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2023-04-02 04:57:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2023-04-02 04:57:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2023-04-02 04:57:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2023-04-02 04:57:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2023-04-02 04:57:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2023-04-02 04:57:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2023-04-02 04:57:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 04:57:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2023-04-02 04:57:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2023-04-02 04:57:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2023-04-02 04:57:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2023-04-02 04:57:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2023-04-02 04:57:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 04:57:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:57:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 04:57:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:57:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:57:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:57:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:57:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 04:57:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 04:57:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 04:57:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 04:57:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 04:57:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 04:57:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2023-04-02 04:57:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2023-04-02 04:57:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2023-04-02 04:57:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2023-04-02 04:57:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2023-04-02 04:57:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2023-04-02 04:57:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2023-04-02 04:57:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2023-04-02 04:57:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 04:57:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2023-04-02 04:57:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2023-04-02 04:57:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2023-04-02 04:57:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2023-04-02 04:57:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2023-04-02 04:57:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 04:57:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:57:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:57:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:57:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:57:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:57:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:57:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:57:28,931 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:57:28,933 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:57:29,452 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:57:29,474 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:57:29,474 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 04:57:29,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:57:29 BoogieIcfgContainer [2023-04-02 04:57:29,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:57:29,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:57:29,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:57:29,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:57:29,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:57:28" (1/3) ... [2023-04-02 04:57:29,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f110fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:57:29, skipping insertion in model container [2023-04-02 04:57:29,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:57:28" (2/3) ... [2023-04-02 04:57:29,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f110fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:57:29, skipping insertion in model container [2023-04-02 04:57:29,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:57:29" (3/3) ... [2023-04-02 04:57:29,484 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2023-04-02 04:57:29,504 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:57:29,504 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:57:29,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:57:29,567 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;@4d2c1586, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:57:29,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:57:29,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 154 states have (on average 1.5064935064935066) internal successors, (232), 155 states have internal predecessors, (232), 43 states have call successors, (43), 19 states have call predecessors, (43), 19 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-04-02 04:57:29,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-04-02 04:57:29,583 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:29,584 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] [2023-04-02 04:57:29,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:29,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:29,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1915679699, now seen corresponding path program 1 times [2023-04-02 04:57:29,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:29,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213197698] [2023-04-02 04:57:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:29,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:30,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:30,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:30,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:57:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:30,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:57:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:30,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 04:57:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:30,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:30,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:57:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:30,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:57:30,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:30,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213197698] [2023-04-02 04:57:30,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213197698] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:30,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:30,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 04:57:30,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944408634] [2023-04-02 04:57:30,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:30,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 04:57:30,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:30,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 04:57:30,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:57:30,650 INFO L87 Difference]: Start difference. First operand has 218 states, 154 states have (on average 1.5064935064935066) internal successors, (232), 155 states have internal predecessors, (232), 43 states have call successors, (43), 19 states have call predecessors, (43), 19 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 9 states have call predecessors, (13), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:57:32,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:32,986 INFO L93 Difference]: Finished difference Result 427 states and 658 transitions. [2023-04-02 04:57:32,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 04:57:32,989 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 9 states have call predecessors, (13), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 56 [2023-04-02 04:57:32,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:32,998 INFO L225 Difference]: With dead ends: 427 [2023-04-02 04:57:32,998 INFO L226 Difference]: Without dead ends: 223 [2023-04-02 04:57:33,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2023-04-02 04:57:33,006 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 680 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 2117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:33,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 172 Invalid, 2117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 04:57:33,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-04-02 04:57:33,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 213. [2023-04-02 04:57:33,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 151 states have (on average 1.4105960264900663) internal successors, (213), 151 states have internal predecessors, (213), 43 states have call successors, (43), 19 states have call predecessors, (43), 18 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-04-02 04:57:33,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 298 transitions. [2023-04-02 04:57:33,130 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 298 transitions. Word has length 56 [2023-04-02 04:57:33,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:33,130 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 298 transitions. [2023-04-02 04:57:33,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 9 states have call predecessors, (13), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:57:33,131 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 298 transitions. [2023-04-02 04:57:33,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:57:33,133 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:33,133 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] [2023-04-02 04:57:33,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:57:33,134 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:33,134 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:33,134 INFO L85 PathProgramCache]: Analyzing trace with hash -726871496, now seen corresponding path program 1 times [2023-04-02 04:57:33,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:33,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222631550] [2023-04-02 04:57:33,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:33,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:33,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:33,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:33,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:57:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:33,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:33,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:57:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:33,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:33,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:57:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:33,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:57:33,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:33,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222631550] [2023-04-02 04:57:33,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222631550] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:33,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:33,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 04:57:33,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487750353] [2023-04-02 04:57:33,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:33,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 04:57:33,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:33,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 04:57:33,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:57:33,509 INFO L87 Difference]: Start difference. First operand 213 states and 298 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 10 states have call predecessors, (13), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-04-02 04:57:35,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:35,020 INFO L93 Difference]: Finished difference Result 406 states and 581 transitions. [2023-04-02 04:57:35,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:57:35,021 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 10 states have call predecessors, (13), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 67 [2023-04-02 04:57:35,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:35,023 INFO L225 Difference]: With dead ends: 406 [2023-04-02 04:57:35,023 INFO L226 Difference]: Without dead ends: 217 [2023-04-02 04:57:35,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:57:35,026 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 706 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:35,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 95 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 04:57:35,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-04-02 04:57:35,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2023-04-02 04:57:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 154 states have (on average 1.4025974025974026) internal successors, (216), 154 states have internal predecessors, (216), 43 states have call successors, (43), 20 states have call predecessors, (43), 19 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-04-02 04:57:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 301 transitions. [2023-04-02 04:57:35,080 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 301 transitions. Word has length 67 [2023-04-02 04:57:35,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:35,081 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 301 transitions. [2023-04-02 04:57:35,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 10 states have call predecessors, (13), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-04-02 04:57:35,081 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 301 transitions. [2023-04-02 04:57:35,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-02 04:57:35,082 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:35,083 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:35,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:57:35,083 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:35,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:35,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1355226864, now seen corresponding path program 1 times [2023-04-02 04:57:35,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:35,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710405200] [2023-04-02 04:57:35,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:35,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:57:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:57:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:57:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:57:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:57:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:57:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 04:57:35,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:35,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710405200] [2023-04-02 04:57:35,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710405200] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:35,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:35,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 04:57:35,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502690198] [2023-04-02 04:57:35,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:35,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 04:57:35,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:35,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 04:57:35,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-04-02 04:57:35,549 INFO L87 Difference]: Start difference. First operand 217 states and 301 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 7 states have internal predecessors, (56), 6 states have call successors, (17), 12 states have call predecessors, (17), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-04-02 04:57:38,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:38,310 INFO L93 Difference]: Finished difference Result 476 states and 661 transitions. [2023-04-02 04:57:38,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 04:57:38,310 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 7 states have internal predecessors, (56), 6 states have call successors, (17), 12 states have call predecessors, (17), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 89 [2023-04-02 04:57:38,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:38,318 INFO L225 Difference]: With dead ends: 476 [2023-04-02 04:57:38,319 INFO L226 Difference]: Without dead ends: 283 [2023-04-02 04:57:38,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2023-04-02 04:57:38,328 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1981 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 2027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 737 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:38,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1988 Valid, 82 Invalid, 2027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [737 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 04:57:38,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-04-02 04:57:38,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 282. [2023-04-02 04:57:38,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.3888888888888888) internal successors, (275), 200 states have internal predecessors, (275), 54 states have call successors, (54), 30 states have call predecessors, (54), 29 states have return successors, (54), 51 states have call predecessors, (54), 53 states have call successors, (54) [2023-04-02 04:57:38,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 383 transitions. [2023-04-02 04:57:38,405 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 383 transitions. Word has length 89 [2023-04-02 04:57:38,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:38,405 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 383 transitions. [2023-04-02 04:57:38,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 7 states have internal predecessors, (56), 6 states have call successors, (17), 12 states have call predecessors, (17), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-04-02 04:57:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 383 transitions. [2023-04-02 04:57:38,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 04:57:38,411 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:38,411 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:38,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:57:38,412 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:38,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:38,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2052023162, now seen corresponding path program 1 times [2023-04-02 04:57:38,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:38,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203585432] [2023-04-02 04:57:38,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:38,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:57:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:57:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:57:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:57:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:57:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 04:57:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 04:57:38,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:38,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203585432] [2023-04-02 04:57:38,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203585432] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:38,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:38,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 04:57:38,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919790787] [2023-04-02 04:57:38,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:38,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 04:57:38,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:38,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 04:57:38,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-04-02 04:57:38,895 INFO L87 Difference]: Start difference. First operand 282 states and 383 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 7 states have internal predecessors, (57), 6 states have call successors, (17), 12 states have call predecessors, (17), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-04-02 04:57:41,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:41,437 INFO L93 Difference]: Finished difference Result 482 states and 669 transitions. [2023-04-02 04:57:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 04:57:41,438 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 7 states have internal predecessors, (57), 6 states have call successors, (17), 12 states have call predecessors, (17), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 90 [2023-04-02 04:57:41,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:41,440 INFO L225 Difference]: With dead ends: 482 [2023-04-02 04:57:41,440 INFO L226 Difference]: Without dead ends: 286 [2023-04-02 04:57:41,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2023-04-02 04:57:41,442 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1243 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:41,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 77 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 04:57:41,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-04-02 04:57:41,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 282. [2023-04-02 04:57:41,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.3888888888888888) internal successors, (275), 200 states have internal predecessors, (275), 54 states have call successors, (54), 30 states have call predecessors, (54), 29 states have return successors, (54), 51 states have call predecessors, (54), 53 states have call successors, (54) [2023-04-02 04:57:41,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 383 transitions. [2023-04-02 04:57:41,509 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 383 transitions. Word has length 90 [2023-04-02 04:57:41,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:41,512 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 383 transitions. [2023-04-02 04:57:41,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 7 states have internal predecessors, (57), 6 states have call successors, (17), 12 states have call predecessors, (17), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-04-02 04:57:41,512 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 383 transitions. [2023-04-02 04:57:41,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-02 04:57:41,514 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:41,514 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:41,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:57:41,514 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:41,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:41,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1833624268, now seen corresponding path program 1 times [2023-04-02 04:57:41,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:41,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037067229] [2023-04-02 04:57:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:41,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:57:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:57:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:57:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:57:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:57:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 04:57:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:41,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 04:57:41,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:41,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037067229] [2023-04-02 04:57:41,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037067229] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:41,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:41,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:57:41,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381144566] [2023-04-02 04:57:41,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:41,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:57:41,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:41,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:57:41,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:57:41,840 INFO L87 Difference]: Start difference. First operand 282 states and 383 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:57:44,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:44,315 INFO L93 Difference]: Finished difference Result 691 states and 964 transitions. [2023-04-02 04:57:44,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 04:57:44,316 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 92 [2023-04-02 04:57:44,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:44,321 INFO L225 Difference]: With dead ends: 691 [2023-04-02 04:57:44,321 INFO L226 Difference]: Without dead ends: 495 [2023-04-02 04:57:44,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-04-02 04:57:44,325 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 2129 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2159 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:44,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2159 Valid, 81 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [707 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 04:57:44,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-04-02 04:57:44,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 480. [2023-04-02 04:57:44,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 336 states have (on average 1.4107142857142858) internal successors, (474), 341 states have internal predecessors, (474), 94 states have call successors, (94), 48 states have call predecessors, (94), 49 states have return successors, (98), 90 states have call predecessors, (98), 93 states have call successors, (98) [2023-04-02 04:57:44,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 666 transitions. [2023-04-02 04:57:44,442 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 666 transitions. Word has length 92 [2023-04-02 04:57:44,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:44,443 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 666 transitions. [2023-04-02 04:57:44,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:57:44,443 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 666 transitions. [2023-04-02 04:57:44,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 04:57:44,444 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:44,445 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:44,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:57:44,445 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:44,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:44,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1407518226, now seen corresponding path program 1 times [2023-04-02 04:57:44,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:44,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501691435] [2023-04-02 04:57:44,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:44,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:57:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:57:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:57:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:57:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:57:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:57:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:44,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 04:57:44,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:44,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501691435] [2023-04-02 04:57:44,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501691435] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:44,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:44,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:57:44,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073724235] [2023-04-02 04:57:44,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:44,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:57:44,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:44,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:57:44,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:57:44,824 INFO L87 Difference]: Start difference. First operand 480 states and 666 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:57:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:47,300 INFO L93 Difference]: Finished difference Result 1189 states and 1689 transitions. [2023-04-02 04:57:47,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 04:57:47,300 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 93 [2023-04-02 04:57:47,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:47,308 INFO L225 Difference]: With dead ends: 1189 [2023-04-02 04:57:47,308 INFO L226 Difference]: Without dead ends: 827 [2023-04-02 04:57:47,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-04-02 04:57:47,310 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 900 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:47,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 92 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 04:57:47,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2023-04-02 04:57:47,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 821. [2023-04-02 04:57:47,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 570 states have (on average 1.4157894736842105) internal successors, (807), 582 states have internal predecessors, (807), 167 states have call successors, (167), 77 states have call predecessors, (167), 83 states have return successors, (181), 161 states have call predecessors, (181), 166 states have call successors, (181) [2023-04-02 04:57:47,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1155 transitions. [2023-04-02 04:57:47,511 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1155 transitions. Word has length 93 [2023-04-02 04:57:47,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:47,511 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1155 transitions. [2023-04-02 04:57:47,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:57:47,511 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1155 transitions. [2023-04-02 04:57:47,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 04:57:47,513 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:47,513 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:47,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:57:47,513 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:47,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:47,514 INFO L85 PathProgramCache]: Analyzing trace with hash 853549932, now seen corresponding path program 1 times [2023-04-02 04:57:47,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:47,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672783233] [2023-04-02 04:57:47,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:47,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:57:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:57:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:57:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 04:57:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:57:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 04:57:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:47,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 04:57:47,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:47,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672783233] [2023-04-02 04:57:47,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672783233] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:47,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:47,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:57:47,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321873677] [2023-04-02 04:57:47,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:47,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:57:47,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:47,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:57:47,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:57:47,843 INFO L87 Difference]: Start difference. First operand 821 states and 1155 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:57:50,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:50,333 INFO L93 Difference]: Finished difference Result 1517 states and 2160 transitions. [2023-04-02 04:57:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 04:57:50,334 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 95 [2023-04-02 04:57:50,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:50,340 INFO L225 Difference]: With dead ends: 1517 [2023-04-02 04:57:50,341 INFO L226 Difference]: Without dead ends: 832 [2023-04-02 04:57:50,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-04-02 04:57:50,349 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 680 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:50,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 113 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 04:57:50,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2023-04-02 04:57:50,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 826. [2023-04-02 04:57:50,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 574 states have (on average 1.4128919860627178) internal successors, (811), 586 states have internal predecessors, (811), 167 states have call successors, (167), 78 states have call predecessors, (167), 84 states have return successors, (179), 161 states have call predecessors, (179), 166 states have call successors, (179) [2023-04-02 04:57:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1157 transitions. [2023-04-02 04:57:50,545 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1157 transitions. Word has length 95 [2023-04-02 04:57:50,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:50,547 INFO L495 AbstractCegarLoop]: Abstraction has 826 states and 1157 transitions. [2023-04-02 04:57:50,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:57:50,547 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1157 transitions. [2023-04-02 04:57:50,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 04:57:50,548 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:50,548 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:50,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:57:50,549 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:50,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:50,549 INFO L85 PathProgramCache]: Analyzing trace with hash -115961068, now seen corresponding path program 1 times [2023-04-02 04:57:50,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:50,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116552069] [2023-04-02 04:57:50,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:50,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:57:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:57:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:57:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 04:57:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:57:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 04:57:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:50,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 04:57:50,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:50,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116552069] [2023-04-02 04:57:50,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116552069] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:50,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:50,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:57:50,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218713707] [2023-04-02 04:57:50,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:50,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:57:50,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:50,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:57:50,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:57:50,856 INFO L87 Difference]: Start difference. First operand 826 states and 1157 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:57:53,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:53,446 INFO L93 Difference]: Finished difference Result 1539 states and 2176 transitions. [2023-04-02 04:57:53,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 04:57:53,449 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 95 [2023-04-02 04:57:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:53,454 INFO L225 Difference]: With dead ends: 1539 [2023-04-02 04:57:53,454 INFO L226 Difference]: Without dead ends: 854 [2023-04-02 04:57:53,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-04-02 04:57:53,457 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 1200 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:53,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 129 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 04:57:53,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2023-04-02 04:57:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 826. [2023-04-02 04:57:53,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 574 states have (on average 1.4094076655052266) internal successors, (809), 586 states have internal predecessors, (809), 167 states have call successors, (167), 78 states have call predecessors, (167), 84 states have return successors, (177), 161 states have call predecessors, (177), 166 states have call successors, (177) [2023-04-02 04:57:53,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1153 transitions. [2023-04-02 04:57:53,657 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1153 transitions. Word has length 95 [2023-04-02 04:57:53,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:53,657 INFO L495 AbstractCegarLoop]: Abstraction has 826 states and 1153 transitions. [2023-04-02 04:57:53,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (17), 12 states have call predecessors, (17), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:57:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1153 transitions. [2023-04-02 04:57:53,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 04:57:53,659 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:53,659 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:53,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:57:53,659 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:53,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:53,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1607585392, now seen corresponding path program 1 times [2023-04-02 04:57:53,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:53,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037507876] [2023-04-02 04:57:53,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:53,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:53,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:53,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:53,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:57:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:53,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:53,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:57:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:53,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:54,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:57:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:54,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:57:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:54,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:54,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:57:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:57:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 04:57:54,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:54,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037507876] [2023-04-02 04:57:54,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037507876] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:54,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:54,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:57:54,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851220344] [2023-04-02 04:57:54,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:54,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:57:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:54,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:57:54,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:57:54,082 INFO L87 Difference]: Start difference. First operand 826 states and 1153 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (17), 12 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-04-02 04:57:55,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:55,770 INFO L93 Difference]: Finished difference Result 1531 states and 2169 transitions. [2023-04-02 04:57:55,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:57:55,771 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (17), 12 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 93 [2023-04-02 04:57:55,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:55,776 INFO L225 Difference]: With dead ends: 1531 [2023-04-02 04:57:55,776 INFO L226 Difference]: Without dead ends: 846 [2023-04-02 04:57:55,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2023-04-02 04:57:55,781 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 703 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:55,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 97 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 04:57:55,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2023-04-02 04:57:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 846. [2023-04-02 04:57:55,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 590 states have (on average 1.3983050847457628) internal successors, (825), 602 states have internal predecessors, (825), 167 states have call successors, (167), 82 states have call predecessors, (167), 88 states have return successors, (177), 161 states have call predecessors, (177), 166 states have call successors, (177) [2023-04-02 04:57:55,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1169 transitions. [2023-04-02 04:57:55,967 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1169 transitions. Word has length 93 [2023-04-02 04:57:55,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:55,968 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1169 transitions. [2023-04-02 04:57:55,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (17), 12 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-04-02 04:57:55,968 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1169 transitions. [2023-04-02 04:57:55,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 04:57:55,970 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:55,971 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:55,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 04:57:55,971 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:55,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:55,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1947572812, now seen corresponding path program 1 times [2023-04-02 04:57:55,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:55,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279111041] [2023-04-02 04:57:55,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:55,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:57:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:57:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:57:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:57:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:57:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:57:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 04:57:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 04:57:56,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:56,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279111041] [2023-04-02 04:57:56,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279111041] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:56,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:56,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:57:56,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136938295] [2023-04-02 04:57:56,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:56,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:57:56,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:56,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:57:56,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:57:56,406 INFO L87 Difference]: Start difference. First operand 846 states and 1169 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 12 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-04-02 04:57:58,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:58,030 INFO L93 Difference]: Finished difference Result 1571 states and 2213 transitions. [2023-04-02 04:57:58,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:57:58,030 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 12 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 101 [2023-04-02 04:57:58,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:58,035 INFO L225 Difference]: With dead ends: 1571 [2023-04-02 04:57:58,035 INFO L226 Difference]: Without dead ends: 866 [2023-04-02 04:57:58,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2023-04-02 04:57:58,038 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 859 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:58,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 115 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 04:57:58,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2023-04-02 04:57:58,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2023-04-02 04:57:58,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 606 states have (on average 1.3877887788778878) internal successors, (841), 618 states have internal predecessors, (841), 167 states have call successors, (167), 86 states have call predecessors, (167), 92 states have return successors, (177), 161 states have call predecessors, (177), 166 states have call successors, (177) [2023-04-02 04:57:58,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1185 transitions. [2023-04-02 04:57:58,198 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1185 transitions. Word has length 101 [2023-04-02 04:57:58,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:58,198 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1185 transitions. [2023-04-02 04:57:58,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 12 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-04-02 04:57:58,199 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1185 transitions. [2023-04-02 04:57:58,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-04-02 04:57:58,200 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:58,201 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:58,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 04:57:58,201 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:58,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:58,201 INFO L85 PathProgramCache]: Analyzing trace with hash -773831850, now seen corresponding path program 1 times [2023-04-02 04:57:58,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:58,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470032534] [2023-04-02 04:57:58,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:58,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:57:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:57:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:57:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:57:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:57:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:57:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 04:57:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 04:57:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:58,579 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 04:57:58,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:58,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470032534] [2023-04-02 04:57:58,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470032534] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:58,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:58,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:57:58,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309684267] [2023-04-02 04:57:58,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:58,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:57:58,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:58,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:57:58,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:57:58,581 INFO L87 Difference]: Start difference. First operand 866 states and 1185 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 12 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-04-02 04:58:00,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:00,296 INFO L93 Difference]: Finished difference Result 1607 states and 2229 transitions. [2023-04-02 04:58:00,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:58:00,296 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 12 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 109 [2023-04-02 04:58:00,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:00,301 INFO L225 Difference]: With dead ends: 1607 [2023-04-02 04:58:00,301 INFO L226 Difference]: Without dead ends: 882 [2023-04-02 04:58:00,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2023-04-02 04:58:00,305 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1381 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:00,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 103 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 04:58:00,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-04-02 04:58:00,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2023-04-02 04:58:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 618 states have (on average 1.3802588996763754) internal successors, (853), 630 states have internal predecessors, (853), 167 states have call successors, (167), 90 states have call predecessors, (167), 96 states have return successors, (177), 161 states have call predecessors, (177), 166 states have call successors, (177) [2023-04-02 04:58:00,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1197 transitions. [2023-04-02 04:58:00,500 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1197 transitions. Word has length 109 [2023-04-02 04:58:00,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:00,500 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1197 transitions. [2023-04-02 04:58:00,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 12 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-04-02 04:58:00,500 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1197 transitions. [2023-04-02 04:58:00,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-04-02 04:58:00,502 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:00,502 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:00,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 04:58:00,502 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:00,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:00,503 INFO L85 PathProgramCache]: Analyzing trace with hash -627314956, now seen corresponding path program 1 times [2023-04-02 04:58:00,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:00,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261760449] [2023-04-02 04:58:00,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:00,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:58:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:58:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:58:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 04:58:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 04:58:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:00,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 04:58:00,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:00,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261760449] [2023-04-02 04:58:00,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261760449] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:00,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:00,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:58:00,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058469003] [2023-04-02 04:58:00,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:00,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:58:00,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:00,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:58:00,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:58:00,922 INFO L87 Difference]: Start difference. First operand 882 states and 1197 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 12 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-04-02 04:58:02,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:02,524 INFO L93 Difference]: Finished difference Result 1643 states and 2269 transitions. [2023-04-02 04:58:02,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:58:02,525 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 12 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 109 [2023-04-02 04:58:02,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:02,530 INFO L225 Difference]: With dead ends: 1643 [2023-04-02 04:58:02,530 INFO L226 Difference]: Without dead ends: 902 [2023-04-02 04:58:02,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2023-04-02 04:58:02,533 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1347 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:02,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 109 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 04:58:02,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-04-02 04:58:02,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2023-04-02 04:58:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 634 states have (on average 1.3706624605678233) internal successors, (869), 646 states have internal predecessors, (869), 167 states have call successors, (167), 94 states have call predecessors, (167), 100 states have return successors, (177), 161 states have call predecessors, (177), 166 states have call successors, (177) [2023-04-02 04:58:02,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1213 transitions. [2023-04-02 04:58:02,744 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1213 transitions. Word has length 109 [2023-04-02 04:58:02,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:02,744 INFO L495 AbstractCegarLoop]: Abstraction has 902 states and 1213 transitions. [2023-04-02 04:58:02,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 12 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-04-02 04:58:02,744 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1213 transitions. [2023-04-02 04:58:02,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 04:58:02,747 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:02,747 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:02,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 04:58:02,747 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:02,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:02,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1597220470, now seen corresponding path program 1 times [2023-04-02 04:58:02,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:02,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097648522] [2023-04-02 04:58:02,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:02,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:58:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:58:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:58:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 04:58:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 04:58:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:58:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:03,185 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 04:58:03,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:03,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097648522] [2023-04-02 04:58:03,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097648522] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:03,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:03,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:58:03,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622958080] [2023-04-02 04:58:03,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:03,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:58:03,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:03,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:58:03,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:58:03,187 INFO L87 Difference]: Start difference. First operand 902 states and 1213 transitions. Second operand has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 12 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-04-02 04:58:04,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:04,697 INFO L93 Difference]: Finished difference Result 1687 states and 2297 transitions. [2023-04-02 04:58:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:58:04,697 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 12 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 117 [2023-04-02 04:58:04,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:04,702 INFO L225 Difference]: With dead ends: 1687 [2023-04-02 04:58:04,702 INFO L226 Difference]: Without dead ends: 926 [2023-04-02 04:58:04,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2023-04-02 04:58:04,705 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 963 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:04,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 121 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 04:58:04,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2023-04-02 04:58:04,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 926. [2023-04-02 04:58:04,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 654 states have (on average 1.3593272171253823) internal successors, (889), 666 states have internal predecessors, (889), 167 states have call successors, (167), 98 states have call predecessors, (167), 104 states have return successors, (177), 161 states have call predecessors, (177), 166 states have call successors, (177) [2023-04-02 04:58:04,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1233 transitions. [2023-04-02 04:58:04,878 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1233 transitions. Word has length 117 [2023-04-02 04:58:04,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:04,879 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1233 transitions. [2023-04-02 04:58:04,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 12 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-04-02 04:58:04,879 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1233 transitions. [2023-04-02 04:58:04,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-04-02 04:58:04,887 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:04,887 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:04,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 04:58:04,888 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:04,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:04,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1944849540, now seen corresponding path program 1 times [2023-04-02 04:58:04,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:04,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383905544] [2023-04-02 04:58:04,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:04,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:58:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:58:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:58:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:58:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:58:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:58:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:58:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:58:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:05,645 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-02 04:58:05,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:05,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383905544] [2023-04-02 04:58:05,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383905544] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:05,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:05,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 04:58:05,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029218676] [2023-04-02 04:58:05,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:05,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 04:58:05,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:05,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 04:58:05,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:58:05,647 INFO L87 Difference]: Start difference. First operand 926 states and 1233 transitions. Second operand has 19 states, 18 states have (on average 4.333333333333333) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (20), 11 states have call predecessors, (20), 5 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2023-04-02 04:58:10,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:10,108 INFO L93 Difference]: Finished difference Result 2549 states and 3361 transitions. [2023-04-02 04:58:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-04-02 04:58:10,108 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.333333333333333) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (20), 11 states have call predecessors, (20), 5 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) Word has length 122 [2023-04-02 04:58:10,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:10,117 INFO L225 Difference]: With dead ends: 2549 [2023-04-02 04:58:10,118 INFO L226 Difference]: Without dead ends: 1752 [2023-04-02 04:58:10,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=549, Invalid=1901, Unknown=0, NotChecked=0, Total=2450 [2023-04-02 04:58:10,121 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1321 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 3214 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 3559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 3214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:10,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 181 Invalid, 3559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 3214 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-02 04:58:10,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2023-04-02 04:58:10,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1660. [2023-04-02 04:58:10,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1660 states, 1192 states have (on average 1.3380872483221478) internal successors, (1595), 1208 states have internal predecessors, (1595), 275 states have call successors, (275), 178 states have call predecessors, (275), 192 states have return successors, (293), 273 states have call predecessors, (293), 274 states have call successors, (293) [2023-04-02 04:58:10,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2163 transitions. [2023-04-02 04:58:10,489 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2163 transitions. Word has length 122 [2023-04-02 04:58:10,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:10,490 INFO L495 AbstractCegarLoop]: Abstraction has 1660 states and 2163 transitions. [2023-04-02 04:58:10,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.333333333333333) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (20), 11 states have call predecessors, (20), 5 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2023-04-02 04:58:10,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2163 transitions. [2023-04-02 04:58:10,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-04-02 04:58:10,492 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:10,492 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:10,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 04:58:10,492 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:10,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:10,492 INFO L85 PathProgramCache]: Analyzing trace with hash -598942713, now seen corresponding path program 1 times [2023-04-02 04:58:10,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:10,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138012228] [2023-04-02 04:58:10,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:10,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:58:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:58:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:58:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 04:58:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 04:58:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:58:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 04:58:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:10,899 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-02 04:58:10,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:10,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138012228] [2023-04-02 04:58:10,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138012228] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:10,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:10,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:58:10,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021566785] [2023-04-02 04:58:10,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:10,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:58:10,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:10,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:58:10,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:58:10,901 INFO L87 Difference]: Start difference. First operand 1660 states and 2163 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 12 states have call predecessors, (21), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-04-02 04:58:12,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:12,501 INFO L93 Difference]: Finished difference Result 3033 states and 3979 transitions. [2023-04-02 04:58:12,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:58:12,502 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 12 states have call predecessors, (21), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 124 [2023-04-02 04:58:12,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:12,509 INFO L225 Difference]: With dead ends: 3033 [2023-04-02 04:58:12,509 INFO L226 Difference]: Without dead ends: 1676 [2023-04-02 04:58:12,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2023-04-02 04:58:12,513 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 507 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:12,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 105 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 04:58:12,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2023-04-02 04:58:12,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1664. [2023-04-02 04:58:12,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 1196 states have (on average 1.3252508361204014) internal successors, (1585), 1212 states have internal predecessors, (1585), 269 states have call successors, (269), 184 states have call predecessors, (269), 198 states have return successors, (287), 267 states have call predecessors, (287), 268 states have call successors, (287) [2023-04-02 04:58:12,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2141 transitions. [2023-04-02 04:58:12,890 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2141 transitions. Word has length 124 [2023-04-02 04:58:12,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:12,891 INFO L495 AbstractCegarLoop]: Abstraction has 1664 states and 2141 transitions. [2023-04-02 04:58:12,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 12 states have call predecessors, (21), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-04-02 04:58:12,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2141 transitions. [2023-04-02 04:58:12,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-04-02 04:58:12,893 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:12,893 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:12,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 04:58:12,893 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:12,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:12,893 INFO L85 PathProgramCache]: Analyzing trace with hash -996099967, now seen corresponding path program 1 times [2023-04-02 04:58:12,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:12,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706311641] [2023-04-02 04:58:12,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:12,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:58:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:58:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:58:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:58:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:58:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:58:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:58:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:58:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:13,491 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-02 04:58:13,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:13,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706311641] [2023-04-02 04:58:13,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706311641] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:13,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:13,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 04:58:13,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630903972] [2023-04-02 04:58:13,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:13,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 04:58:13,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:13,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 04:58:13,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:58:13,493 INFO L87 Difference]: Start difference. First operand 1664 states and 2141 transitions. Second operand has 19 states, 17 states have (on average 4.588235294117647) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (20), 11 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 04:58:16,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:16,129 INFO L93 Difference]: Finished difference Result 1770 states and 2292 transitions. [2023-04-02 04:58:16,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 04:58:16,129 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.588235294117647) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (20), 11 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 125 [2023-04-02 04:58:16,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:16,136 INFO L225 Difference]: With dead ends: 1770 [2023-04-02 04:58:16,136 INFO L226 Difference]: Without dead ends: 1768 [2023-04-02 04:58:16,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=732, Unknown=0, NotChecked=0, Total=930 [2023-04-02 04:58:16,137 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1233 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 2829 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 3214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 2829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:16,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 289 Invalid, 3214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 2829 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 04:58:16,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2023-04-02 04:58:16,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1692. [2023-04-02 04:58:16,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1212 states have (on average 1.3209570957095709) internal successors, (1601), 1236 states have internal predecessors, (1601), 271 states have call successors, (271), 186 states have call predecessors, (271), 208 states have return successors, (301), 269 states have call predecessors, (301), 270 states have call successors, (301) [2023-04-02 04:58:16,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2173 transitions. [2023-04-02 04:58:16,422 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2173 transitions. Word has length 125 [2023-04-02 04:58:16,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:16,423 INFO L495 AbstractCegarLoop]: Abstraction has 1692 states and 2173 transitions. [2023-04-02 04:58:16,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.588235294117647) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (20), 11 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 04:58:16,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2173 transitions. [2023-04-02 04:58:16,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-04-02 04:58:16,424 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:16,425 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:16,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 04:58:16,425 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:16,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:16,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1273536350, now seen corresponding path program 1 times [2023-04-02 04:58:16,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:16,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24090680] [2023-04-02 04:58:16,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:16,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:58:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:58:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:58:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 04:58:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 04:58:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:58:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 04:58:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-04-02 04:58:16,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:16,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24090680] [2023-04-02 04:58:16,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24090680] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:16,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:16,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-04-02 04:58:16,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105949134] [2023-04-02 04:58:16,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:16,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 04:58:16,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:16,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 04:58:16,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-04-02 04:58:16,913 INFO L87 Difference]: Start difference. First operand 1692 states and 2173 transitions. Second operand has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (21), 12 states have call predecessors, (21), 4 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2023-04-02 04:58:20,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:20,790 INFO L93 Difference]: Finished difference Result 3452 states and 4397 transitions. [2023-04-02 04:58:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-04-02 04:58:20,793 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (21), 12 states have call predecessors, (21), 4 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) Word has length 126 [2023-04-02 04:58:20,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:20,804 INFO L225 Difference]: With dead ends: 3452 [2023-04-02 04:58:20,805 INFO L226 Difference]: Without dead ends: 2131 [2023-04-02 04:58:20,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=503, Invalid=1659, Unknown=0, NotChecked=0, Total=2162 [2023-04-02 04:58:20,810 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1406 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 2447 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 2447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:20,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 162 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 2447 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-02 04:58:20,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2023-04-02 04:58:21,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 1852. [2023-04-02 04:58:21,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1852 states, 1332 states have (on average 1.307057057057057) internal successors, (1741), 1356 states have internal predecessors, (1741), 291 states have call successors, (291), 206 states have call predecessors, (291), 228 states have return successors, (313), 289 states have call predecessors, (313), 290 states have call successors, (313) [2023-04-02 04:58:21,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1852 states to 1852 states and 2345 transitions. [2023-04-02 04:58:21,221 INFO L78 Accepts]: Start accepts. Automaton has 1852 states and 2345 transitions. Word has length 126 [2023-04-02 04:58:21,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:21,222 INFO L495 AbstractCegarLoop]: Abstraction has 1852 states and 2345 transitions. [2023-04-02 04:58:21,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (21), 12 states have call predecessors, (21), 4 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2023-04-02 04:58:21,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1852 states and 2345 transitions. [2023-04-02 04:58:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-02 04:58:21,225 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:21,225 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:21,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 04:58:21,226 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:21,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:21,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1967630880, now seen corresponding path program 1 times [2023-04-02 04:58:21,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:21,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313671033] [2023-04-02 04:58:21,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:21,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:58:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:58:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:58:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:58:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:58:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:58:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:58:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:58:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:58:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-02 04:58:21,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:21,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313671033] [2023-04-02 04:58:21,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313671033] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:21,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:21,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 04:58:21,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061963059] [2023-04-02 04:58:21,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:21,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 04:58:21,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:21,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 04:58:21,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:58:21,854 INFO L87 Difference]: Start difference. First operand 1852 states and 2345 transitions. Second operand has 19 states, 18 states have (on average 4.444444444444445) internal successors, (80), 9 states have internal predecessors, (80), 6 states have call successors, (21), 11 states have call predecessors, (21), 5 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) [2023-04-02 04:58:27,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:27,353 INFO L93 Difference]: Finished difference Result 4825 states and 6087 transitions. [2023-04-02 04:58:27,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-04-02 04:58:27,354 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.444444444444445) internal successors, (80), 9 states have internal predecessors, (80), 6 states have call successors, (21), 11 states have call predecessors, (21), 5 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) Word has length 130 [2023-04-02 04:58:27,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:27,366 INFO L225 Difference]: With dead ends: 4825 [2023-04-02 04:58:27,366 INFO L226 Difference]: Without dead ends: 3400 [2023-04-02 04:58:27,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=614, Invalid=2248, Unknown=0, NotChecked=0, Total=2862 [2023-04-02 04:58:27,371 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 2093 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 3696 mSolverCounterSat, 684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2125 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 4380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 3696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:27,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2125 Valid, 188 Invalid, 4380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 3696 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-02 04:58:27,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2023-04-02 04:58:27,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 2312. [2023-04-02 04:58:27,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2312 states, 1657 states have (on average 1.304767652383826) internal successors, (2162), 1693 states have internal predecessors, (2162), 365 states have call successors, (365), 259 states have call predecessors, (365), 289 states have return successors, (395), 359 states have call predecessors, (395), 364 states have call successors, (395) [2023-04-02 04:58:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 2922 transitions. [2023-04-02 04:58:27,796 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 2922 transitions. Word has length 130 [2023-04-02 04:58:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:27,797 INFO L495 AbstractCegarLoop]: Abstraction has 2312 states and 2922 transitions. [2023-04-02 04:58:27,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.444444444444445) internal successors, (80), 9 states have internal predecessors, (80), 6 states have call successors, (21), 11 states have call predecessors, (21), 5 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) [2023-04-02 04:58:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 2922 transitions. [2023-04-02 04:58:27,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-04-02 04:58:27,798 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:27,799 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:27,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 04:58:27,799 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:27,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:27,799 INFO L85 PathProgramCache]: Analyzing trace with hash 948082887, now seen corresponding path program 1 times [2023-04-02 04:58:27,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:27,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089444587] [2023-04-02 04:58:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:27,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:58:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:58:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:58:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:58:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:58:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:58:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:58:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 04:58:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:58:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:28,448 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-02 04:58:28,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:28,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089444587] [2023-04-02 04:58:28,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089444587] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:28,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:28,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 04:58:28,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44129411] [2023-04-02 04:58:28,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:28,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 04:58:28,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:28,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 04:58:28,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:58:28,450 INFO L87 Difference]: Start difference. First operand 2312 states and 2922 transitions. Second operand has 19 states, 19 states have (on average 4.473684210526316) internal successors, (85), 8 states have internal predecessors, (85), 5 states have call successors, (21), 11 states have call predecessors, (21), 5 states have return successors, (19), 7 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 04:58:32,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:32,589 INFO L93 Difference]: Finished difference Result 4594 states and 5901 transitions. [2023-04-02 04:58:32,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 04:58:32,589 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.473684210526316) internal successors, (85), 8 states have internal predecessors, (85), 5 states have call successors, (21), 11 states have call predecessors, (21), 5 states have return successors, (19), 7 states have call predecessors, (19), 4 states have call successors, (19) Word has length 131 [2023-04-02 04:58:32,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:32,599 INFO L225 Difference]: With dead ends: 4594 [2023-04-02 04:58:32,599 INFO L226 Difference]: Without dead ends: 2585 [2023-04-02 04:58:32,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 04:58:32,603 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 1358 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 2951 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 3385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 2951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:32,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 190 Invalid, 3385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 2951 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 04:58:32,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2023-04-02 04:58:33,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2230. [2023-04-02 04:58:33,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 1593 states have (on average 1.2944130571249215) internal successors, (2062), 1625 states have internal predecessors, (2062), 357 states have call successors, (357), 253 states have call predecessors, (357), 279 states have return successors, (383), 351 states have call predecessors, (383), 356 states have call successors, (383) [2023-04-02 04:58:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 2802 transitions. [2023-04-02 04:58:33,043 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 2802 transitions. Word has length 131 [2023-04-02 04:58:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:33,044 INFO L495 AbstractCegarLoop]: Abstraction has 2230 states and 2802 transitions. [2023-04-02 04:58:33,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.473684210526316) internal successors, (85), 8 states have internal predecessors, (85), 5 states have call successors, (21), 11 states have call predecessors, (21), 5 states have return successors, (19), 7 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 04:58:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 2802 transitions. [2023-04-02 04:58:33,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-04-02 04:58:33,046 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:33,046 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:33,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 04:58:33,046 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:33,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:33,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1823816089, now seen corresponding path program 1 times [2023-04-02 04:58:33,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:33,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007199286] [2023-04-02 04:58:33,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:33,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:58:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 04:58:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 04:58:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:58:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:58:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:58:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 04:58:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:58:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 04:58:33,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:33,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007199286] [2023-04-02 04:58:33,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007199286] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:33,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:33,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 04:58:33,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256204733] [2023-04-02 04:58:33,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:33,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 04:58:33,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:33,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 04:58:33,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:58:33,442 INFO L87 Difference]: Start difference. First operand 2230 states and 2802 transitions. Second operand has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (21), 11 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:58:37,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:37,193 INFO L93 Difference]: Finished difference Result 6285 states and 7996 transitions. [2023-04-02 04:58:37,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 04:58:37,193 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (21), 11 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 132 [2023-04-02 04:58:37,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:37,207 INFO L225 Difference]: With dead ends: 6285 [2023-04-02 04:58:37,208 INFO L226 Difference]: Without dead ends: 4382 [2023-04-02 04:58:37,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 04:58:37,215 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 1064 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 2610 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 2610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:37,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 160 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 2610 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-02 04:58:37,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4382 states. [2023-04-02 04:58:37,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4382 to 3926. [2023-04-02 04:58:37,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3926 states, 2801 states have (on average 1.29382363441628) internal successors, (3624), 2863 states have internal predecessors, (3624), 635 states have call successors, (635), 440 states have call predecessors, (635), 489 states have return successors, (705), 622 states have call predecessors, (705), 634 states have call successors, (705) [2023-04-02 04:58:37,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3926 states to 3926 states and 4964 transitions. [2023-04-02 04:58:37,954 INFO L78 Accepts]: Start accepts. Automaton has 3926 states and 4964 transitions. Word has length 132 [2023-04-02 04:58:37,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:37,954 INFO L495 AbstractCegarLoop]: Abstraction has 3926 states and 4964 transitions. [2023-04-02 04:58:37,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (21), 11 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:58:37,954 INFO L276 IsEmpty]: Start isEmpty. Operand 3926 states and 4964 transitions. [2023-04-02 04:58:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-04-02 04:58:37,955 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:37,955 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:37,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 04:58:37,956 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:37,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:37,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1230300573, now seen corresponding path program 1 times [2023-04-02 04:58:37,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:37,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97834736] [2023-04-02 04:58:37,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:37,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:58:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 04:58:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 04:58:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:58:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:58:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:58:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 04:58:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:58:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-02 04:58:38,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:38,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97834736] [2023-04-02 04:58:38,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97834736] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:38,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:38,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-04-02 04:58:38,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808891380] [2023-04-02 04:58:38,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:38,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 04:58:38,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:38,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 04:58:38,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-04-02 04:58:38,552 INFO L87 Difference]: Start difference. First operand 3926 states and 4964 transitions. Second operand has 18 states, 18 states have (on average 4.888888888888889) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (21), 11 states have call predecessors, (21), 5 states have return successors, (19), 5 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:58:44,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:44,633 INFO L93 Difference]: Finished difference Result 7912 states and 10166 transitions. [2023-04-02 04:58:44,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-04-02 04:58:44,633 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.888888888888889) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (21), 11 states have call predecessors, (21), 5 states have return successors, (19), 5 states have call predecessors, (19), 2 states have call successors, (19) Word has length 134 [2023-04-02 04:58:44,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:44,648 INFO L225 Difference]: With dead ends: 7912 [2023-04-02 04:58:44,649 INFO L226 Difference]: Without dead ends: 4395 [2023-04-02 04:58:44,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=503, Invalid=1849, Unknown=0, NotChecked=0, Total=2352 [2023-04-02 04:58:44,657 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 2883 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 4622 mSolverCounterSat, 1201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2886 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 5823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1201 IncrementalHoareTripleChecker+Valid, 4622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:44,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2886 Valid, 187 Invalid, 5823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1201 Valid, 4622 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 04:58:44,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2023-04-02 04:58:45,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 3831. [2023-04-02 04:58:45,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3831 states, 2721 states have (on average 1.2870268283719222) internal successors, (3502), 2786 states have internal predecessors, (3502), 636 states have call successors, (636), 421 states have call predecessors, (636), 473 states have return successors, (705), 623 states have call predecessors, (705), 635 states have call successors, (705) [2023-04-02 04:58:45,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 4843 transitions. [2023-04-02 04:58:45,458 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 4843 transitions. Word has length 134 [2023-04-02 04:58:45,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:45,459 INFO L495 AbstractCegarLoop]: Abstraction has 3831 states and 4843 transitions. [2023-04-02 04:58:45,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.888888888888889) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (21), 11 states have call predecessors, (21), 5 states have return successors, (19), 5 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:58:45,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 4843 transitions. [2023-04-02 04:58:45,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-04-02 04:58:45,461 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:45,461 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:45,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 04:58:45,461 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:45,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:45,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1242438111, now seen corresponding path program 1 times [2023-04-02 04:58:45,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:45,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157459727] [2023-04-02 04:58:45,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:45,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:58:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 04:58:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 04:58:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:58:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:58:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:58:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 04:58:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:58:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 04:58:45,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:45,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157459727] [2023-04-02 04:58:45,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157459727] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:45,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:45,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 04:58:45,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738671477] [2023-04-02 04:58:45,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:45,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 04:58:45,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:45,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 04:58:45,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:58:45,835 INFO L87 Difference]: Start difference. First operand 3831 states and 4843 transitions. Second operand has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 11 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:58:50,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:50,731 INFO L93 Difference]: Finished difference Result 11355 states and 14488 transitions. [2023-04-02 04:58:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 04:58:50,733 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 11 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 136 [2023-04-02 04:58:50,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:50,758 INFO L225 Difference]: With dead ends: 11355 [2023-04-02 04:58:50,758 INFO L226 Difference]: Without dead ends: 8098 [2023-04-02 04:58:50,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2023-04-02 04:58:50,767 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 1292 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 2901 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:50,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 191 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 2901 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-02 04:58:50,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8098 states. [2023-04-02 04:58:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8098 to 5643. [2023-04-02 04:58:52,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5643 states, 4016 states have (on average 1.284113545816733) internal successors, (5157), 4113 states have internal predecessors, (5157), 930 states have call successors, (930), 617 states have call predecessors, (930), 696 states have return successors, (1042), 912 states have call predecessors, (1042), 929 states have call successors, (1042) [2023-04-02 04:58:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5643 states to 5643 states and 7129 transitions. [2023-04-02 04:58:52,036 INFO L78 Accepts]: Start accepts. Automaton has 5643 states and 7129 transitions. Word has length 136 [2023-04-02 04:58:52,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:52,037 INFO L495 AbstractCegarLoop]: Abstraction has 5643 states and 7129 transitions. [2023-04-02 04:58:52,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 11 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:58:52,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5643 states and 7129 transitions. [2023-04-02 04:58:52,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-04-02 04:58:52,040 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:52,040 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:52,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 04:58:52,040 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:52,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:52,041 INFO L85 PathProgramCache]: Analyzing trace with hash -929264496, now seen corresponding path program 1 times [2023-04-02 04:58:52,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:52,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071440789] [2023-04-02 04:58:52,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:52,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:58:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 04:58:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 04:58:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:58:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:58:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:58:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 04:58:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:58:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:52,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 04:58:52,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:52,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071440789] [2023-04-02 04:58:52,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071440789] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:52,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:52,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 04:58:52,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025743796] [2023-04-02 04:58:52,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:52,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 04:58:52,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:52,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 04:58:52,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:58:52,456 INFO L87 Difference]: Start difference. First operand 5643 states and 7129 transitions. Second operand has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 11 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:58:57,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:57,497 INFO L93 Difference]: Finished difference Result 12861 states and 16315 transitions. [2023-04-02 04:58:57,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 04:58:57,498 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 11 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 136 [2023-04-02 04:58:57,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:57,523 INFO L225 Difference]: With dead ends: 12861 [2023-04-02 04:58:57,523 INFO L226 Difference]: Without dead ends: 7929 [2023-04-02 04:58:57,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 04:58:57,538 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 891 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 3070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:57,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 190 Invalid, 3070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-02 04:58:57,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7929 states. [2023-04-02 04:58:59,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7929 to 7387. [2023-04-02 04:58:59,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7387 states, 5267 states have (on average 1.2815644579456997) internal successors, (6750), 5396 states have internal predecessors, (6750), 1189 states have call successors, (1189), 821 states have call predecessors, (1189), 930 states have return successors, (1348), 1169 states have call predecessors, (1348), 1188 states have call successors, (1348) [2023-04-02 04:58:59,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 9287 transitions. [2023-04-02 04:58:59,199 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 9287 transitions. Word has length 136 [2023-04-02 04:58:59,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:59,199 INFO L495 AbstractCegarLoop]: Abstraction has 7387 states and 9287 transitions. [2023-04-02 04:58:59,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 11 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:58:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 9287 transitions. [2023-04-02 04:58:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-02 04:58:59,203 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:59,203 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:59,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 04:58:59,203 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:59,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:59,204 INFO L85 PathProgramCache]: Analyzing trace with hash -110598214, now seen corresponding path program 1 times [2023-04-02 04:58:59,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:59,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760905126] [2023-04-02 04:58:59,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:59,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:58:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 04:58:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 04:58:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:58:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:58:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:58:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:58:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:58:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 04:58:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:58:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:58:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 04:58:59,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:59,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760905126] [2023-04-02 04:58:59,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760905126] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:59,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:59,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:58:59,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524755903] [2023-04-02 04:58:59,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:59,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:58:59,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:59,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:58:59,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:58:59,564 INFO L87 Difference]: Start difference. First operand 7387 states and 9287 transitions. Second operand has 12 states, 12 states have (on average 7.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:59:02,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:59:02,512 INFO L93 Difference]: Finished difference Result 14172 states and 17899 transitions. [2023-04-02 04:59:02,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:59:02,513 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 137 [2023-04-02 04:59:02,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:59:02,543 INFO L225 Difference]: With dead ends: 14172 [2023-04-02 04:59:02,543 INFO L226 Difference]: Without dead ends: 7426 [2023-04-02 04:59:02,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:59:02,559 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 817 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:59:02,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 100 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 04:59:02,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7426 states. [2023-04-02 04:59:04,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7426 to 7393. [2023-04-02 04:59:04,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7393 states, 5273 states have (on average 1.2812440735824009) internal successors, (6756), 5402 states have internal predecessors, (6756), 1189 states have call successors, (1189), 821 states have call predecessors, (1189), 930 states have return successors, (1348), 1169 states have call predecessors, (1348), 1188 states have call successors, (1348) [2023-04-02 04:59:04,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7393 states to 7393 states and 9293 transitions. [2023-04-02 04:59:04,290 INFO L78 Accepts]: Start accepts. Automaton has 7393 states and 9293 transitions. Word has length 137 [2023-04-02 04:59:04,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:04,291 INFO L495 AbstractCegarLoop]: Abstraction has 7393 states and 9293 transitions. [2023-04-02 04:59:04,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:59:04,291 INFO L276 IsEmpty]: Start isEmpty. Operand 7393 states and 9293 transitions. [2023-04-02 04:59:04,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-04-02 04:59:04,294 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:04,294 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:59:04,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-02 04:59:04,295 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:04,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:04,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1628925532, now seen corresponding path program 1 times [2023-04-02 04:59:04,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:04,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200708670] [2023-04-02 04:59:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:04,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:59:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:59:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:59:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:59:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:59:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:59:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 04:59:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:59:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:59:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:59:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 04:59:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:59:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:04,839 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 04:59:04,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:04,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200708670] [2023-04-02 04:59:04,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200708670] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:04,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:59:04,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 04:59:04,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109517431] [2023-04-02 04:59:04,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:04,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 04:59:04,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:04,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 04:59:04,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-04-02 04:59:04,842 INFO L87 Difference]: Start difference. First operand 7393 states and 9293 transitions. Second operand has 16 states, 15 states have (on average 6.066666666666666) internal successors, (91), 6 states have internal predecessors, (91), 5 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-04-02 04:59:08,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:59:08,526 INFO L93 Difference]: Finished difference Result 14377 states and 18126 transitions. [2023-04-02 04:59:08,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 04:59:08,527 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.066666666666666) internal successors, (91), 6 states have internal predecessors, (91), 5 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) Word has length 138 [2023-04-02 04:59:08,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:59:08,555 INFO L225 Difference]: With dead ends: 14377 [2023-04-02 04:59:08,555 INFO L226 Difference]: Without dead ends: 7415 [2023-04-02 04:59:08,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=267, Invalid=789, Unknown=0, NotChecked=0, Total=1056 [2023-04-02 04:59:08,570 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 968 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:59:08,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 102 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 04:59:08,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7415 states. [2023-04-02 04:59:10,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7415 to 7391. [2023-04-02 04:59:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7391 states, 5271 states have (on average 1.2807816353633086) internal successors, (6751), 5400 states have internal predecessors, (6751), 1189 states have call successors, (1189), 821 states have call predecessors, (1189), 930 states have return successors, (1348), 1169 states have call predecessors, (1348), 1188 states have call successors, (1348) [2023-04-02 04:59:10,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 9288 transitions. [2023-04-02 04:59:10,276 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 9288 transitions. Word has length 138 [2023-04-02 04:59:10,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:10,277 INFO L495 AbstractCegarLoop]: Abstraction has 7391 states and 9288 transitions. [2023-04-02 04:59:10,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.066666666666666) internal successors, (91), 6 states have internal predecessors, (91), 5 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-04-02 04:59:10,277 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 9288 transitions. [2023-04-02 04:59:10,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-04-02 04:59:10,280 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:10,280 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:59:10,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 04:59:10,281 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:10,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:10,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1492635444, now seen corresponding path program 1 times [2023-04-02 04:59:10,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:10,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409214611] [2023-04-02 04:59:10,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:10,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:59:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:59:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:59:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:59:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 04:59:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:59:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 04:59:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:59:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:59:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:59:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 04:59:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:59:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:10,799 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 04:59:10,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:10,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409214611] [2023-04-02 04:59:10,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409214611] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:10,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:59:10,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 04:59:10,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754419163] [2023-04-02 04:59:10,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:10,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 04:59:10,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:10,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 04:59:10,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-04-02 04:59:10,802 INFO L87 Difference]: Start difference. First operand 7391 states and 9288 transitions. Second operand has 17 states, 16 states have (on average 5.6875) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-04-02 04:59:14,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:59:14,538 INFO L93 Difference]: Finished difference Result 13880 states and 17539 transitions. [2023-04-02 04:59:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 04:59:14,539 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.6875) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) Word has length 138 [2023-04-02 04:59:14,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:59:14,558 INFO L225 Difference]: With dead ends: 13880 [2023-04-02 04:59:14,558 INFO L226 Difference]: Without dead ends: 6929 [2023-04-02 04:59:14,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=346, Invalid=1136, Unknown=0, NotChecked=0, Total=1482 [2023-04-02 04:59:14,569 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 1893 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:59:14,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1924 Valid, 92 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 04:59:14,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2023-04-02 04:59:16,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6920. [2023-04-02 04:59:16,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6920 states, 4929 states have (on average 1.2856563197403124) internal successors, (6337), 5047 states have internal predecessors, (6337), 1123 states have call successors, (1123), 768 states have call predecessors, (1123), 867 states have return successors, (1266), 1104 states have call predecessors, (1266), 1122 states have call successors, (1266) [2023-04-02 04:59:16,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6920 states to 6920 states and 8726 transitions. [2023-04-02 04:59:16,079 INFO L78 Accepts]: Start accepts. Automaton has 6920 states and 8726 transitions. Word has length 138 [2023-04-02 04:59:16,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:16,080 INFO L495 AbstractCegarLoop]: Abstraction has 6920 states and 8726 transitions. [2023-04-02 04:59:16,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.6875) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-04-02 04:59:16,080 INFO L276 IsEmpty]: Start isEmpty. Operand 6920 states and 8726 transitions. [2023-04-02 04:59:16,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-04-02 04:59:16,081 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:16,081 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:59:16,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 04:59:16,082 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:16,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:16,082 INFO L85 PathProgramCache]: Analyzing trace with hash -17559447, now seen corresponding path program 1 times [2023-04-02 04:59:16,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:16,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885596023] [2023-04-02 04:59:16,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:16,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:59:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:59:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:59:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:59:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 04:59:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:59:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:59:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:59:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:59:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:59:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 04:59:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:59:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:16,364 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 04:59:16,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:16,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885596023] [2023-04-02 04:59:16,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885596023] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:16,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:59:16,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:59:16,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433552619] [2023-04-02 04:59:16,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:16,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:59:16,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:16,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:59:16,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:59:16,367 INFO L87 Difference]: Start difference. First operand 6920 states and 8726 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:59:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:59:18,909 INFO L93 Difference]: Finished difference Result 13541 states and 17128 transitions. [2023-04-02 04:59:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:59:18,910 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2023-04-02 04:59:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:59:18,934 INFO L225 Difference]: With dead ends: 13541 [2023-04-02 04:59:18,935 INFO L226 Difference]: Without dead ends: 6962 [2023-04-02 04:59:18,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:59:18,950 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 952 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:59:18,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 100 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 04:59:18,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6962 states. [2023-04-02 04:59:20,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6962 to 6926. [2023-04-02 04:59:20,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6926 states, 4935 states have (on average 1.2853090172239108) internal successors, (6343), 5053 states have internal predecessors, (6343), 1123 states have call successors, (1123), 768 states have call predecessors, (1123), 867 states have return successors, (1266), 1104 states have call predecessors, (1266), 1122 states have call successors, (1266) [2023-04-02 04:59:20,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6926 states to 6926 states and 8732 transitions. [2023-04-02 04:59:20,619 INFO L78 Accepts]: Start accepts. Automaton has 6926 states and 8732 transitions. Word has length 139 [2023-04-02 04:59:20,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:20,620 INFO L495 AbstractCegarLoop]: Abstraction has 6926 states and 8732 transitions. [2023-04-02 04:59:20,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:59:20,620 INFO L276 IsEmpty]: Start isEmpty. Operand 6926 states and 8732 transitions. [2023-04-02 04:59:20,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-04-02 04:59:20,622 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:20,622 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:59:20,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 04:59:20,622 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:20,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1244842994, now seen corresponding path program 1 times [2023-04-02 04:59:20,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:20,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796086088] [2023-04-02 04:59:20,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:20,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:20,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:20,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:59:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:20,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:59:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:20,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:59:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:20,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:20,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:20,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:59:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 04:59:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:59:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:59:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:59:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:59:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:59:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 04:59:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:59:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 04:59:21,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:21,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796086088] [2023-04-02 04:59:21,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796086088] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:21,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:59:21,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 04:59:21,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350932845] [2023-04-02 04:59:21,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:21,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 04:59:21,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:21,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 04:59:21,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-04-02 04:59:21,096 INFO L87 Difference]: Start difference. First operand 6926 states and 8732 transitions. Second operand has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 6 states have internal predecessors, (92), 5 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-04-02 04:59:24,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:59:24,794 INFO L93 Difference]: Finished difference Result 13560 states and 17137 transitions. [2023-04-02 04:59:24,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 04:59:24,794 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 6 states have internal predecessors, (92), 5 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) Word has length 139 [2023-04-02 04:59:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:59:24,813 INFO L225 Difference]: With dead ends: 13560 [2023-04-02 04:59:24,813 INFO L226 Difference]: Without dead ends: 6973 [2023-04-02 04:59:24,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=313, Invalid=947, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 04:59:24,824 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1387 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:59:24,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 105 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 04:59:24,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6973 states. [2023-04-02 04:59:26,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6973 to 6747. [2023-04-02 04:59:26,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 4814 states have (on average 1.2858329871208973) internal successors, (6190), 4918 states have internal predecessors, (6190), 1098 states have call successors, (1098), 746 states have call predecessors, (1098), 834 states have return successors, (1214), 1082 states have call predecessors, (1214), 1097 states have call successors, (1214) [2023-04-02 04:59:26,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 8502 transitions. [2023-04-02 04:59:26,408 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 8502 transitions. Word has length 139 [2023-04-02 04:59:26,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:26,408 INFO L495 AbstractCegarLoop]: Abstraction has 6747 states and 8502 transitions. [2023-04-02 04:59:26,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 6 states have internal predecessors, (92), 5 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-04-02 04:59:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 8502 transitions. [2023-04-02 04:59:26,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 04:59:26,410 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:26,410 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:59:26,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 04:59:26,410 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:26,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:26,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1590224754, now seen corresponding path program 1 times [2023-04-02 04:59:26,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:26,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355004346] [2023-04-02 04:59:26,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:26,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:59:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:59:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:59:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:59:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:59:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:59:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 04:59:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:59:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:59:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:59:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 04:59:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:59:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:26,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 04:59:26,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:26,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355004346] [2023-04-02 04:59:26,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355004346] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:26,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:59:26,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:59:26,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028038225] [2023-04-02 04:59:26,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:26,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:59:26,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:26,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:59:26,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:59:26,723 INFO L87 Difference]: Start difference. First operand 6747 states and 8502 transitions. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:59:29,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:59:29,234 INFO L93 Difference]: Finished difference Result 13068 states and 16523 transitions. [2023-04-02 04:59:29,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:59:29,234 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 140 [2023-04-02 04:59:29,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:59:29,253 INFO L225 Difference]: With dead ends: 13068 [2023-04-02 04:59:29,253 INFO L226 Difference]: Without dead ends: 6658 [2023-04-02 04:59:29,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2023-04-02 04:59:29,263 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1026 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:59:29,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 107 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 04:59:29,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6658 states. [2023-04-02 04:59:30,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6658 to 6614. [2023-04-02 04:59:30,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6614 states, 4715 states have (on average 1.287592788971368) internal successors, (6071), 4817 states have internal predecessors, (6071), 1081 states have call successors, (1081), 732 states have call predecessors, (1081), 817 states have return successors, (1193), 1064 states have call predecessors, (1193), 1080 states have call successors, (1193) [2023-04-02 04:59:30,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6614 states to 6614 states and 8345 transitions. [2023-04-02 04:59:30,840 INFO L78 Accepts]: Start accepts. Automaton has 6614 states and 8345 transitions. Word has length 140 [2023-04-02 04:59:30,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:30,840 INFO L495 AbstractCegarLoop]: Abstraction has 6614 states and 8345 transitions. [2023-04-02 04:59:30,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (21), 11 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 04:59:30,840 INFO L276 IsEmpty]: Start isEmpty. Operand 6614 states and 8345 transitions. [2023-04-02 04:59:30,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-04-02 04:59:30,846 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:30,846 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-04-02 04:59:30,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-04-02 04:59:30,846 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:30,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:30,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1253265070, now seen corresponding path program 1 times [2023-04-02 04:59:30,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:30,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143892571] [2023-04-02 04:59:30,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:30,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:59:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:59:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:59:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:59:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:59:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:59:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:59:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:59:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:59:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:59:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:59:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 04:59:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 04:59:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 04:59:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 04:59:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 04:59:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-04-02 04:59:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:59:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:59:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:59:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:59:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,599 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-04-02 04:59:31,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:31,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143892571] [2023-04-02 04:59:31,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143892571] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:59:31,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197295126] [2023-04-02 04:59:31,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:31,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:59:31,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:59:31,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:59:31,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 04:59:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:31,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 04:59:31,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:59:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-04-02 04:59:32,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:59:32,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197295126] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:32,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:59:32,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [20] total 22 [2023-04-02 04:59:32,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639448190] [2023-04-02 04:59:32,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:32,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:59:32,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:32,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:59:32,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2023-04-02 04:59:32,053 INFO L87 Difference]: Start difference. First operand 6614 states and 8345 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 5 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) [2023-04-02 04:59:34,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:59:34,224 INFO L93 Difference]: Finished difference Result 13163 states and 16628 transitions. [2023-04-02 04:59:34,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 04:59:34,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 5 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) Word has length 218 [2023-04-02 04:59:34,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:59:34,240 INFO L225 Difference]: With dead ends: 13163 [2023-04-02 04:59:34,240 INFO L226 Difference]: Without dead ends: 6686 [2023-04-02 04:59:34,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2023-04-02 04:59:34,250 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 307 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:59:34,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 80 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:59:34,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6686 states. [2023-04-02 04:59:35,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6686 to 6614. [2023-04-02 04:59:35,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6614 states, 4715 states have (on average 1.286744432661718) internal successors, (6067), 4817 states have internal predecessors, (6067), 1081 states have call successors, (1081), 732 states have call predecessors, (1081), 817 states have return successors, (1193), 1064 states have call predecessors, (1193), 1080 states have call successors, (1193) [2023-04-02 04:59:35,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6614 states to 6614 states and 8341 transitions. [2023-04-02 04:59:35,770 INFO L78 Accepts]: Start accepts. Automaton has 6614 states and 8341 transitions. Word has length 218 [2023-04-02 04:59:35,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:35,771 INFO L495 AbstractCegarLoop]: Abstraction has 6614 states and 8341 transitions. [2023-04-02 04:59:35,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 5 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) [2023-04-02 04:59:35,771 INFO L276 IsEmpty]: Start isEmpty. Operand 6614 states and 8341 transitions. [2023-04-02 04:59:35,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-04-02 04:59:35,776 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:35,777 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-04-02 04:59:35,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 04:59:35,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:59:35,987 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:35,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash 348298505, now seen corresponding path program 1 times [2023-04-02 04:59:35,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:35,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690396546] [2023-04-02 04:59:35,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:35,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:59:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:59:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:59:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:59:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:59:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 04:59:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:59:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:59:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:59:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:59:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:59:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 04:59:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 04:59:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 04:59:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 04:59:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 04:59:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-04-02 04:59:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:59:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:59:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:59:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:59:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-04-02 04:59:36,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:36,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690396546] [2023-04-02 04:59:36,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690396546] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:59:36,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004770547] [2023-04-02 04:59:36,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:36,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:59:36,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:59:36,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:59:36,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 04:59:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:36,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 04:59:36,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:59:36,860 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-04-02 04:59:36,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:59:36,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004770547] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:36,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:59:36,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 20 [2023-04-02 04:59:36,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442212147] [2023-04-02 04:59:36,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:36,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:59:36,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:36,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:59:36,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:59:36,862 INFO L87 Difference]: Start difference. First operand 6614 states and 8341 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 6 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2023-04-02 04:59:39,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:59:39,188 INFO L93 Difference]: Finished difference Result 13147 states and 16628 transitions. [2023-04-02 04:59:39,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:59:39,189 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 6 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) Word has length 218 [2023-04-02 04:59:39,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:59:39,207 INFO L225 Difference]: With dead ends: 13147 [2023-04-02 04:59:39,207 INFO L226 Difference]: Without dead ends: 6670 [2023-04-02 04:59:39,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:59:39,215 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 493 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:59:39,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 82 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:59:39,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6670 states. [2023-04-02 04:59:40,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6670 to 6610. [2023-04-02 04:59:40,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6610 states, 4711 states have (on average 1.285289747399703) internal successors, (6055), 4813 states have internal predecessors, (6055), 1081 states have call successors, (1081), 732 states have call predecessors, (1081), 817 states have return successors, (1193), 1064 states have call predecessors, (1193), 1080 states have call successors, (1193) [2023-04-02 04:59:40,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6610 states to 6610 states and 8329 transitions. [2023-04-02 04:59:40,635 INFO L78 Accepts]: Start accepts. Automaton has 6610 states and 8329 transitions. Word has length 218 [2023-04-02 04:59:40,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:40,635 INFO L495 AbstractCegarLoop]: Abstraction has 6610 states and 8329 transitions. [2023-04-02 04:59:40,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 6 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2023-04-02 04:59:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand 6610 states and 8329 transitions. [2023-04-02 04:59:40,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-04-02 04:59:40,639 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:40,639 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-04-02 04:59:40,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 04:59:40,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-04-02 04:59:40,840 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:40,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:40,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1382625502, now seen corresponding path program 1 times [2023-04-02 04:59:40,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:40,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026371954] [2023-04-02 04:59:40,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:40,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:59:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:59:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:59:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:59:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:59:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:59:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 04:59:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:59:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:59:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:59:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:59:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 04:59:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 04:59:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 04:59:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 04:59:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:59:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 04:59:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:59:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:59:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:59:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:59:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,270 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-04-02 04:59:41,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:41,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026371954] [2023-04-02 04:59:41,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026371954] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:59:41,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28771305] [2023-04-02 04:59:41,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:41,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:59:41,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:59:41,272 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:59:41,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 04:59:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:41,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 1417 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 04:59:41,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:59:41,604 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-04-02 04:59:41,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:59:41,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28771305] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:41,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:59:41,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 20 [2023-04-02 04:59:41,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702862442] [2023-04-02 04:59:41,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:41,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:59:41,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:41,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:59:41,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:59:41,606 INFO L87 Difference]: Start difference. First operand 6610 states and 8329 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 6 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2023-04-02 04:59:43,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:59:43,640 INFO L93 Difference]: Finished difference Result 13111 states and 16556 transitions. [2023-04-02 04:59:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:59:43,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 6 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) Word has length 219 [2023-04-02 04:59:43,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:59:43,653 INFO L225 Difference]: With dead ends: 13111 [2023-04-02 04:59:43,654 INFO L226 Difference]: Without dead ends: 6646 [2023-04-02 04:59:43,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:59:43,662 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 480 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:59:43,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 80 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:59:43,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6646 states. [2023-04-02 04:59:45,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6646 to 6610. [2023-04-02 04:59:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6610 states, 4711 states have (on average 1.2844406707705371) internal successors, (6051), 4813 states have internal predecessors, (6051), 1081 states have call successors, (1081), 732 states have call predecessors, (1081), 817 states have return successors, (1193), 1064 states have call predecessors, (1193), 1080 states have call successors, (1193) [2023-04-02 04:59:45,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6610 states to 6610 states and 8325 transitions. [2023-04-02 04:59:45,202 INFO L78 Accepts]: Start accepts. Automaton has 6610 states and 8325 transitions. Word has length 219 [2023-04-02 04:59:45,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:45,202 INFO L495 AbstractCegarLoop]: Abstraction has 6610 states and 8325 transitions. [2023-04-02 04:59:45,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 6 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2023-04-02 04:59:45,203 INFO L276 IsEmpty]: Start isEmpty. Operand 6610 states and 8325 transitions. [2023-04-02 04:59:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-04-02 04:59:45,206 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:45,206 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-04-02 04:59:45,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 04:59:45,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:59:45,407 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:45,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:45,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1465760928, now seen corresponding path program 1 times [2023-04-02 04:59:45,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:45,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006874538] [2023-04-02 04:59:45,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:45,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:45,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:45,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:59:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:45,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:59:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:59:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:45,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:45,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:45,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:59:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:45,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:59:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:59:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 04:59:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:59:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:59:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:59:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:59:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 04:59:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 04:59:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 04:59:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 04:59:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:59:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 04:59:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:59:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:59:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:59:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:59:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,113 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-04-02 04:59:46,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:46,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006874538] [2023-04-02 04:59:46,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006874538] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:59:46,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650720988] [2023-04-02 04:59:46,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:46,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:59:46,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:59:46,117 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:59:46,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 04:59:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:46,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 20 conjunts are in the unsatisfiable core [2023-04-02 04:59:46,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:59:46,577 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 04:59:46,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:59:46,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650720988] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:46,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:59:46,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [20] total 29 [2023-04-02 04:59:46,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420129754] [2023-04-02 04:59:46,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:46,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 04:59:46,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:46,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 04:59:46,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2023-04-02 04:59:46,579 INFO L87 Difference]: Start difference. First operand 6610 states and 8325 transitions. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 8 states have internal predecessors, (138), 3 states have call successors, (35), 4 states have call predecessors, (35), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-04-02 04:59:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:59:49,574 INFO L93 Difference]: Finished difference Result 15340 states and 19347 transitions. [2023-04-02 04:59:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 04:59:49,574 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 8 states have internal predecessors, (138), 3 states have call successors, (35), 4 states have call predecessors, (35), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 219 [2023-04-02 04:59:49,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:59:49,592 INFO L225 Difference]: With dead ends: 15340 [2023-04-02 04:59:49,592 INFO L226 Difference]: Without dead ends: 9114 [2023-04-02 04:59:49,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=1201, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 04:59:49,601 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 494 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:59:49,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 240 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 04:59:49,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9114 states. [2023-04-02 04:59:51,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9114 to 6315. [2023-04-02 04:59:51,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6315 states, 4507 states have (on average 1.2709119147992012) internal successors, (5728), 4611 states have internal predecessors, (5728), 1017 states have call successors, (1017), 711 states have call predecessors, (1017), 790 states have return successors, (1119), 992 states have call predecessors, (1119), 1016 states have call successors, (1119) [2023-04-02 04:59:51,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6315 states to 6315 states and 7864 transitions. [2023-04-02 04:59:51,162 INFO L78 Accepts]: Start accepts. Automaton has 6315 states and 7864 transitions. Word has length 219 [2023-04-02 04:59:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:51,163 INFO L495 AbstractCegarLoop]: Abstraction has 6315 states and 7864 transitions. [2023-04-02 04:59:51,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 8 states have internal predecessors, (138), 3 states have call successors, (35), 4 states have call predecessors, (35), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-04-02 04:59:51,163 INFO L276 IsEmpty]: Start isEmpty. Operand 6315 states and 7864 transitions. [2023-04-02 04:59:51,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-04-02 04:59:51,166 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:51,166 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-04-02 04:59:51,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-02 04:59:51,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:59:51,367 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:51,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:51,367 INFO L85 PathProgramCache]: Analyzing trace with hash 403552400, now seen corresponding path program 1 times [2023-04-02 04:59:51,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:51,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260214490] [2023-04-02 04:59:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:51,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:59:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:59:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:59:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:59:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:59:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:59:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:59:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 04:59:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:59:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:59:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:59:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:59:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:59:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 04:59:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 04:59:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 04:59:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 04:59:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 04:59:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-04-02 04:59:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 04:59:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:59:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:59:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 04:59:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:59:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-04-02 04:59:51,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:51,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260214490] [2023-04-02 04:59:51,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260214490] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:59:51,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040192129] [2023-04-02 04:59:51,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:51,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:59:51,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:59:52,001 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:59:52,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-02 04:59:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:52,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 24 conjunts are in the unsatisfiable core [2023-04-02 04:59:52,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:59:52,573 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 49 proven. 60 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 04:59:52,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:59:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-04-02 04:59:53,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040192129] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:59:53,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:59:53,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 12] total 37 [2023-04-02 04:59:53,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998620676] [2023-04-02 04:59:53,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:59:53,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-04-02 04:59:53,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:53,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-04-02 04:59:53,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1213, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 04:59:53,124 INFO L87 Difference]: Start difference. First operand 6315 states and 7864 transitions. Second operand has 37 states, 37 states have (on average 6.621621621621622) internal successors, (245), 23 states have internal predecessors, (245), 14 states have call successors, (79), 16 states have call predecessors, (79), 14 states have return successors, (75), 18 states have call predecessors, (75), 14 states have call successors, (75) [2023-04-02 05:00:30,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:30,422 INFO L93 Difference]: Finished difference Result 24126 states and 30956 transitions. [2023-04-02 05:00:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 253 states. [2023-04-02 05:00:30,422 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 6.621621621621622) internal successors, (245), 23 states have internal predecessors, (245), 14 states have call successors, (79), 16 states have call predecessors, (79), 14 states have return successors, (75), 18 states have call predecessors, (75), 14 states have call successors, (75) Word has length 227 [2023-04-02 05:00:30,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:30,460 INFO L225 Difference]: With dead ends: 24126 [2023-04-02 05:00:30,460 INFO L226 Difference]: Without dead ends: 18262 [2023-04-02 05:00:30,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 873 GetRequests, 587 SyntacticMatches, 1 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31975 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=9410, Invalid=72672, Unknown=0, NotChecked=0, Total=82082 [2023-04-02 05:00:30,480 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 16977 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 11536 mSolverCounterSat, 7640 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16977 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 19176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7640 IncrementalHoareTripleChecker+Valid, 11536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:30,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16977 Valid, 374 Invalid, 19176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7640 Valid, 11536 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-04-02 05:00:30,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18262 states. [2023-04-02 05:00:34,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18262 to 12545. [2023-04-02 05:00:34,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12545 states, 8906 states have (on average 1.277902537615091) internal successors, (11381), 9157 states have internal predecessors, (11381), 2048 states have call successors, (2048), 1398 states have call predecessors, (2048), 1590 states have return successors, (2290), 1989 states have call predecessors, (2290), 2047 states have call successors, (2290) [2023-04-02 05:00:34,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12545 states to 12545 states and 15719 transitions. [2023-04-02 05:00:34,164 INFO L78 Accepts]: Start accepts. Automaton has 12545 states and 15719 transitions. Word has length 227 [2023-04-02 05:00:34,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:34,165 INFO L495 AbstractCegarLoop]: Abstraction has 12545 states and 15719 transitions. [2023-04-02 05:00:34,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 6.621621621621622) internal successors, (245), 23 states have internal predecessors, (245), 14 states have call successors, (79), 16 states have call predecessors, (79), 14 states have return successors, (75), 18 states have call predecessors, (75), 14 states have call successors, (75) [2023-04-02 05:00:34,165 INFO L276 IsEmpty]: Start isEmpty. Operand 12545 states and 15719 transitions. [2023-04-02 05:00:34,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-04-02 05:00:34,172 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:34,172 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:34,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:34,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-04-02 05:00:34,374 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:34,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:34,374 INFO L85 PathProgramCache]: Analyzing trace with hash 94840272, now seen corresponding path program 1 times [2023-04-02 05:00:34,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:34,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567403432] [2023-04-02 05:00:34,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:34,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:00:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 05:00:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 05:00:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:00:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 05:00:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:00:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:00:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:00:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:00:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 05:00:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 05:00:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 05:00:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:00:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:00:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:00:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 05:00:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 05:00:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 05:00:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-04-02 05:00:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:00:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 05:00:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 05:00:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,046 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-04-02 05:00:35,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:35,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567403432] [2023-04-02 05:00:35,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567403432] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:35,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954201218] [2023-04-02 05:00:35,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:35,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:35,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:35,048 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:00:35,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-02 05:00:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 1469 conjuncts, 24 conjunts are in the unsatisfiable core [2023-04-02 05:00:35,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 45 proven. 63 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 05:00:35,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:00:36,350 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-04-02 05:00:36,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954201218] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:00:36,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:00:36,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 11, 12] total 33 [2023-04-02 05:00:36,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843483567] [2023-04-02 05:00:36,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:00:36,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-04-02 05:00:36,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:36,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-04-02 05:00:36,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2023-04-02 05:00:36,354 INFO L87 Difference]: Start difference. First operand 12545 states and 15719 transitions. Second operand has 33 states, 33 states have (on average 7.909090909090909) internal successors, (261), 19 states have internal predecessors, (261), 9 states have call successors, (80), 15 states have call predecessors, (80), 14 states have return successors, (72), 14 states have call predecessors, (72), 9 states have call successors, (72)