/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/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 07:13:48,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 07:13:48,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 07:13:48,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 07:13:48,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 07:13:48,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 07:13:48,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 07:13:48,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 07:13:48,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 07:13:48,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 07:13:48,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 07:13:48,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 07:13:48,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 07:13:48,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 07:13:48,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 07:13:48,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 07:13:48,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 07:13:48,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 07:13:48,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 07:13:48,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 07:13:48,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 07:13:48,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 07:13:48,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 07:13:48,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 07:13:48,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 07:13:48,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 07:13:48,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 07:13:48,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 07:13:48,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 07:13:48,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 07:13:48,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 07:13:48,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 07:13:48,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 07:13:48,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 07:13:48,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 07:13:48,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 07:13:48,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 07:13:48,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 07:13:48,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 07:13:48,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 07:13:48,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 07:13:48,943 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 07:13:48,981 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 07:13:48,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 07:13:48,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 07:13:48,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 07:13:48,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 07:13:48,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 07:13:48,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 07:13:48,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 07:13:48,984 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 07:13:48,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 07:13:48,985 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 07:13:48,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 07:13:48,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 07:13:48,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 07:13:48,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 07:13:48,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 07:13:48,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 07:13:48,986 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 07:13:48,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 07:13:48,986 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 07:13:48,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 07:13:48,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 07:13:48,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 07:13:48,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 07:13:48,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 07:13:48,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 07:13:48,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 07:13:48,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 07:13:48,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 07:13:48,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 07:13:48,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 07:13:48,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 07:13:48,988 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 07:13:48,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 07:13:48,988 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 07:13:48,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 07:13:49,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 07:13:49,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 07:13:49,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 07:13:49,231 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 07:13:49,231 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 07:13:49,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2023-04-02 07:13:50,321 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 07:13:50,782 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 07:13:50,782 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2023-04-02 07:13:50,815 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812c1badb/be324a89472a4fb2a806d0bffc2b8ebe/FLAG262ae178a [2023-04-02 07:13:50,826 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812c1badb/be324a89472a4fb2a806d0bffc2b8ebe [2023-04-02 07:13:50,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 07:13:50,829 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 07:13:50,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 07:13:50,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 07:13:50,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 07:13:50,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 07:13:50" (1/1) ... [2023-04-02 07:13:50,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a686224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:50, skipping insertion in model container [2023-04-02 07:13:50,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 07:13:50" (1/1) ... [2023-04-02 07:13:50,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 07:13:50,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 07:13:51,926 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/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i[153430,153443] [2023-04-02 07:13:51,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 07:13:52,031 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 07:13:52,269 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/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i[153430,153443] [2023-04-02 07:13:52,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 07:13:52,331 INFO L208 MainTranslator]: Completed translation [2023-04-02 07:13:52,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:52 WrapperNode [2023-04-02 07:13:52,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 07:13:52,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 07:13:52,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 07:13:52,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 07:13:52,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:52" (1/1) ... [2023-04-02 07:13:52,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:52" (1/1) ... [2023-04-02 07:13:52,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:52" (1/1) ... [2023-04-02 07:13:52,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:52" (1/1) ... [2023-04-02 07:13:52,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:52" (1/1) ... [2023-04-02 07:13:52,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:52" (1/1) ... [2023-04-02 07:13:52,507 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:52" (1/1) ... [2023-04-02 07:13:52,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:52" (1/1) ... [2023-04-02 07:13:52,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 07:13:52,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 07:13:52,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 07:13:52,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 07:13:52,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:52" (1/1) ... [2023-04-02 07:13:52,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 07:13:52,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:13:52,571 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 07:13:52,585 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 07:13:52,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 07:13:52,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 07:13:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 07:13:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-02 07:13:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-02 07:13:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-02 07:13:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-04-02 07:13:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-02 07:13:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-02 07:13:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-04-02 07:13:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-02 07:13:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-02 07:13:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_int_must_check_helper [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_init [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_free [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_write [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2023-04-02 07:13:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_from_lirc [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_callback [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_close [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_data [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_probe [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2023-04-02 07:13:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_suspend [2023-04-02 07:13:52,620 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2023-04-02 07:13:52,620 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_init [2023-04-02 07:13:52,620 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_exit [2023-04-02 07:13:52,620 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2023-04-02 07:13:52,620 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2023-04-02 07:13:52,620 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 07:13:52,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-04-02 07:13:52,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2023-04-02 07:13:52,621 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-04-02 07:13:52,621 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-04-02 07:13:52,621 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-02 07:13:52,621 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-02 07:13:52,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-02 07:13:52,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-02 07:13:52,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_alloc [2023-04-02 07:13:52,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2023-04-02 07:13:52,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in [2023-04-02 07:13:52,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in_r [2023-04-02 07:13:52,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-02 07:13:52,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-02 07:13:52,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-02 07:13:52,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-02 07:13:52,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-02 07:13:52,623 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-02 07:13:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-02 07:13:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-02 07:13:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-04-02 07:13:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2023-04-02 07:13:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-02 07:13:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-04-02 07:13:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-02 07:13:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-04-02 07:13:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-04-02 07:13:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-02 07:13:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2023-04-02 07:13:52,625 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_register_driver [2023-04-02 07:13:52,625 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_unregister_driver [2023-04-02 07:13:52,625 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2023-04-02 07:13:52,625 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-02 07:13:52,625 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-02 07:13:52,625 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-02 07:13:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-02 07:13:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-04-02 07:13:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2023-04-02 07:13:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-04-02 07:13:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-02 07:13:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_id [2023-04-02 07:13:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-04-02 07:13:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-02 07:13:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-02 07:13:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2023-04-02 07:13:52,627 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-04-02 07:13:52,627 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-02 07:13:52,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-02 07:13:52,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-04-02 07:13:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 07:13:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 07:13:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 07:13:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 07:13:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 07:13:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 07:13:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-02 07:13:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-02 07:13:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-02 07:13:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-02 07:13:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-02 07:13:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-02 07:13:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-02 07:13:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-02 07:13:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-02 07:13:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-02 07:13:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-04-02 07:13:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2023-04-02 07:13:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-04-02 07:13:52,630 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2023-04-02 07:13:52,633 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-02 07:13:52,633 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2023-04-02 07:13:52,633 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2023-04-02 07:13:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-02 07:13:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-02 07:13:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-02 07:13:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-02 07:13:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-02 07:13:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-02 07:13:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-04-02 07:13:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-04-02 07:13:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-02 07:13:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-04-02 07:13:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-04-02 07:13:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-04-02 07:13:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-04-02 07:13:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-02 07:13:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_id [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-02 07:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_int_must_check_helper [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_alloc [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in_r [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_init [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_free [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_write [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_register_driver [2023-04-02 07:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_unregister_driver [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure imon_probe [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_callback [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure imon_suspend [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure ir_close [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure imon_init [2023-04-02 07:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure imon_exit [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_from_lirc [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure submit_data [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-04-02 07:13:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 07:13:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 07:13:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 07:13:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 07:13:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-02 07:13:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-02 07:13:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-02 07:13:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-02 07:13:53,089 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 07:13:53,096 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 07:13:53,938 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2023-04-02 07:13:54,649 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 07:13:54,661 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2023-04-02 07:13:54,661 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2023-04-02 07:13:54,793 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 07:13:54,822 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume !false; [2023-04-02 07:13:54,822 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume false; [2023-04-02 07:13:55,079 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 07:13:55,091 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 07:13:55,092 INFO L302 CfgBuilder]: Removed 40 assume(true) statements. [2023-04-02 07:13:55,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 07:13:55 BoogieIcfgContainer [2023-04-02 07:13:55,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 07:13:55,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 07:13:55,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 07:13:55,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 07:13:55,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 07:13:50" (1/3) ... [2023-04-02 07:13:55,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293ece81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 07:13:55, skipping insertion in model container [2023-04-02 07:13:55,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:52" (2/3) ... [2023-04-02 07:13:55,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293ece81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 07:13:55, skipping insertion in model container [2023-04-02 07:13:55,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 07:13:55" (3/3) ... [2023-04-02 07:13:55,102 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2023-04-02 07:13:55,118 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 07:13:55,118 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 07:13:55,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 07:13:55,197 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;@3ea5fd96, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 07:13:55,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 07:13:55,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 836 states, 558 states have (on average 1.381720430107527) internal successors, (771), 581 states have internal predecessors, (771), 189 states have call successors, (189), 78 states have call predecessors, (189), 77 states have return successors, (188), 185 states have call predecessors, (188), 188 states have call successors, (188) [2023-04-02 07:13:55,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-04-02 07:13:55,212 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:13:55,213 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] [2023-04-02 07:13:55,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:13:55,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:13:55,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1020937090, now seen corresponding path program 1 times [2023-04-02 07:13:55,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:13:55,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794531603] [2023-04-02 07:13:55,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:13:55,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:13:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:13:56,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:13:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:13:56,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:13:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:13:56,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:13:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:13:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:13:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:13:56,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:13:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:13:56,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:13:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:13:56,511 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 07:13:56,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:13:56,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794531603] [2023-04-02 07:13:56,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794531603] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:13:56,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:13:56,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 07:13:56,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280049464] [2023-04-02 07:13:56,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:13:56,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 07:13:56,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:13:56,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 07:13:56,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 07:13:56,561 INFO L87 Difference]: Start difference. First operand has 836 states, 558 states have (on average 1.381720430107527) internal successors, (771), 581 states have internal predecessors, (771), 189 states have call successors, (189), 78 states have call predecessors, (189), 77 states have return successors, (188), 185 states have call predecessors, (188), 188 states have call successors, (188) Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-02 07:14:03,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:03,746 INFO L93 Difference]: Finished difference Result 1124 states and 1618 transitions. [2023-04-02 07:14:03,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 07:14:03,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 35 [2023-04-02 07:14:03,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:03,763 INFO L225 Difference]: With dead ends: 1124 [2023-04-02 07:14:03,763 INFO L226 Difference]: Without dead ends: 622 [2023-04-02 07:14:03,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 07:14:03,778 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 455 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 2755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:03,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 238 Invalid, 2755 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [121 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-04-02 07:14:03,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2023-04-02 07:14:04,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 512. [2023-04-02 07:14:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 339 states have (on average 1.2536873156342183) internal successors, (425), 355 states have internal predecessors, (425), 116 states have call successors, (116), 58 states have call predecessors, (116), 56 states have return successors, (112), 110 states have call predecessors, (112), 111 states have call successors, (112) [2023-04-02 07:14:04,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 653 transitions. [2023-04-02 07:14:04,061 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 653 transitions. Word has length 35 [2023-04-02 07:14:04,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:04,062 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 653 transitions. [2023-04-02 07:14:04,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-02 07:14:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 653 transitions. [2023-04-02 07:14:04,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-04-02 07:14:04,063 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:04,064 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:14:04,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 07:14:04,064 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:04,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:04,065 INFO L85 PathProgramCache]: Analyzing trace with hash -324844886, now seen corresponding path program 1 times [2023-04-02 07:14:04,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:04,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357437977] [2023-04-02 07:14:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:04,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:04,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:04,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:04,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:04,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:04,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:04,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:04,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 07:14:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:04,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 07:14:04,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:04,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357437977] [2023-04-02 07:14:04,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357437977] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:04,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:04,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 07:14:04,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080805632] [2023-04-02 07:14:04,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:04,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 07:14:04,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:04,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 07:14:04,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:14:04,961 INFO L87 Difference]: Start difference. First operand 512 states and 653 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 07:14:11,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:11,937 INFO L93 Difference]: Finished difference Result 1573 states and 2064 transitions. [2023-04-02 07:14:11,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 07:14:11,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2023-04-02 07:14:11,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:11,944 INFO L225 Difference]: With dead ends: 1573 [2023-04-02 07:14:11,945 INFO L226 Difference]: Without dead ends: 1095 [2023-04-02 07:14:11,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:14:11,949 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 1190 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:11,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 274 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-04-02 07:14:11,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2023-04-02 07:14:12,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1069. [2023-04-02 07:14:12,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 711 states have (on average 1.2672292545710266) internal successors, (901), 749 states have internal predecessors, (901), 248 states have call successors, (248), 109 states have call predecessors, (248), 109 states have return successors, (256), 240 states have call predecessors, (256), 242 states have call successors, (256) [2023-04-02 07:14:12,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1405 transitions. [2023-04-02 07:14:12,303 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1405 transitions. Word has length 40 [2023-04-02 07:14:12,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:12,304 INFO L495 AbstractCegarLoop]: Abstraction has 1069 states and 1405 transitions. [2023-04-02 07:14:12,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 07:14:12,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1405 transitions. [2023-04-02 07:14:12,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-04-02 07:14:12,305 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:12,306 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:14:12,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 07:14:12,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:12,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:12,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1480694164, now seen corresponding path program 1 times [2023-04-02 07:14:12,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:12,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251507820] [2023-04-02 07:14:12,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:12,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:12,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:12,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:12,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:12,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:12,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:12,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 07:14:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 07:14:12,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:12,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251507820] [2023-04-02 07:14:12,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251507820] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:12,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:12,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 07:14:12,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534328202] [2023-04-02 07:14:12,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:12,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 07:14:12,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:12,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 07:14:12,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:14:12,929 INFO L87 Difference]: Start difference. First operand 1069 states and 1405 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 07:14:17,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:17,373 INFO L93 Difference]: Finished difference Result 1094 states and 1439 transitions. [2023-04-02 07:14:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 07:14:17,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 41 [2023-04-02 07:14:17,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:17,380 INFO L225 Difference]: With dead ends: 1094 [2023-04-02 07:14:17,380 INFO L226 Difference]: Without dead ends: 1079 [2023-04-02 07:14:17,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:14:17,383 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 896 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:17,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 113 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 07:14:17,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2023-04-02 07:14:17,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1052. [2023-04-02 07:14:17,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 702 states have (on average 1.264957264957265) internal successors, (888), 738 states have internal predecessors, (888), 243 states have call successors, (243), 106 states have call predecessors, (243), 106 states have return successors, (252), 236 states have call predecessors, (252), 239 states have call successors, (252) [2023-04-02 07:14:17,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1383 transitions. [2023-04-02 07:14:17,736 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1383 transitions. Word has length 41 [2023-04-02 07:14:17,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:17,736 INFO L495 AbstractCegarLoop]: Abstraction has 1052 states and 1383 transitions. [2023-04-02 07:14:17,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 07:14:17,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1383 transitions. [2023-04-02 07:14:17,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-04-02 07:14:17,740 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:17,740 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:14:17,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 07:14:17,740 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:17,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:17,741 INFO L85 PathProgramCache]: Analyzing trace with hash 137508234, now seen corresponding path program 1 times [2023-04-02 07:14:17,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:17,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277426198] [2023-04-02 07:14:17,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:17,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 07:14:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 07:14:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 07:14:18,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:18,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277426198] [2023-04-02 07:14:18,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277426198] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:18,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:18,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 07:14:18,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627475386] [2023-04-02 07:14:18,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:18,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 07:14:18,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:18,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 07:14:18,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-04-02 07:14:18,860 INFO L87 Difference]: Start difference. First operand 1052 states and 1383 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 07:14:31,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:31,678 INFO L93 Difference]: Finished difference Result 2678 states and 3708 transitions. [2023-04-02 07:14:31,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 07:14:31,679 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 76 [2023-04-02 07:14:31,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:31,687 INFO L225 Difference]: With dead ends: 2678 [2023-04-02 07:14:31,688 INFO L226 Difference]: Without dead ends: 1642 [2023-04-02 07:14:31,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-04-02 07:14:31,692 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 900 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 5205 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 5657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 5205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:31,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 649 Invalid, 5657 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [452 Valid, 5205 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-04-02 07:14:31,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2023-04-02 07:14:32,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1052. [2023-04-02 07:14:32,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 702 states have (on average 1.2621082621082622) internal successors, (886), 738 states have internal predecessors, (886), 243 states have call successors, (243), 106 states have call predecessors, (243), 106 states have return successors, (252), 236 states have call predecessors, (252), 239 states have call successors, (252) [2023-04-02 07:14:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1381 transitions. [2023-04-02 07:14:32,077 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1381 transitions. Word has length 76 [2023-04-02 07:14:32,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:32,078 INFO L495 AbstractCegarLoop]: Abstraction has 1052 states and 1381 transitions. [2023-04-02 07:14:32,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 07:14:32,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1381 transitions. [2023-04-02 07:14:32,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-02 07:14:32,080 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:32,080 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:14:32,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 07:14:32,081 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:32,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:32,081 INFO L85 PathProgramCache]: Analyzing trace with hash -135089556, now seen corresponding path program 1 times [2023-04-02 07:14:32,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:32,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85923341] [2023-04-02 07:14:32,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:32,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:32,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:32,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:32,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:32,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 07:14:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:33,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:14:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:33,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 07:14:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:33,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 07:14:33,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:33,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85923341] [2023-04-02 07:14:33,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85923341] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:33,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:33,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 07:14:33,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779984354] [2023-04-02 07:14:33,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:33,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 07:14:33,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:33,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 07:14:33,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-04-02 07:14:33,146 INFO L87 Difference]: Start difference. First operand 1052 states and 1381 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (11), 6 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 07:14:56,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:56,469 INFO L93 Difference]: Finished difference Result 3062 states and 4330 transitions. [2023-04-02 07:14:56,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 07:14:56,469 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (11), 6 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2023-04-02 07:14:56,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:56,480 INFO L225 Difference]: With dead ends: 3062 [2023-04-02 07:14:56,481 INFO L226 Difference]: Without dead ends: 2040 [2023-04-02 07:14:56,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2023-04-02 07:14:56,485 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 1289 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 10844 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 11458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 10844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:56,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 1343 Invalid, 11458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [614 Valid, 10844 Invalid, 0 Unknown, 0 Unchecked, 20.6s Time] [2023-04-02 07:14:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2023-04-02 07:14:56,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 1078. [2023-04-02 07:14:56,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 720 states have (on average 1.2555555555555555) internal successors, (904), 756 states have internal predecessors, (904), 243 states have call successors, (243), 106 states have call predecessors, (243), 114 states have return successors, (272), 244 states have call predecessors, (272), 239 states have call successors, (272) [2023-04-02 07:14:56,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1419 transitions. [2023-04-02 07:14:56,907 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1419 transitions. Word has length 77 [2023-04-02 07:14:56,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:56,907 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1419 transitions. [2023-04-02 07:14:56,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (11), 6 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 07:14:56,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1419 transitions. [2023-04-02 07:14:56,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-02 07:14:56,909 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:56,910 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:14:56,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 07:14:56,910 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:56,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:56,910 INFO L85 PathProgramCache]: Analyzing trace with hash 119646989, now seen corresponding path program 1 times [2023-04-02 07:14:56,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:56,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67729855] [2023-04-02 07:14:56,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:56,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 07:14:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:14:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 07:14:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 07:14:57,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:57,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67729855] [2023-04-02 07:14:57,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67729855] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:57,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:57,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 07:14:57,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602228671] [2023-04-02 07:14:57,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:57,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:14:57,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:57,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:14:57,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:14:57,464 INFO L87 Difference]: Start difference. First operand 1078 states and 1419 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-04-02 07:15:06,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:15:06,354 INFO L93 Difference]: Finished difference Result 2727 states and 3773 transitions. [2023-04-02 07:15:06,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 07:15:06,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 77 [2023-04-02 07:15:06,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:15:06,363 INFO L225 Difference]: With dead ends: 2727 [2023-04-02 07:15:06,363 INFO L226 Difference]: Without dead ends: 1679 [2023-04-02 07:15:06,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 07:15:06,369 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 897 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 2964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-04-02 07:15:06,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 328 Invalid, 2964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-04-02 07:15:06,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2023-04-02 07:15:06,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1092. [2023-04-02 07:15:06,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 734 states have (on average 1.2506811989100817) internal successors, (918), 770 states have internal predecessors, (918), 243 states have call successors, (243), 106 states have call predecessors, (243), 114 states have return successors, (272), 244 states have call predecessors, (272), 239 states have call successors, (272) [2023-04-02 07:15:06,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1433 transitions. [2023-04-02 07:15:06,843 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1433 transitions. Word has length 77 [2023-04-02 07:15:06,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:06,843 INFO L495 AbstractCegarLoop]: Abstraction has 1092 states and 1433 transitions. [2023-04-02 07:15:06,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-04-02 07:15:06,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1433 transitions. [2023-04-02 07:15:06,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-04-02 07:15:06,846 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:06,846 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:15:06,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 07:15:06,847 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:06,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:06,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1061091573, now seen corresponding path program 1 times [2023-04-02 07:15:06,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:06,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282697438] [2023-04-02 07:15:06,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:06,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:15:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 07:15:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 07:15:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 07:15:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 07:15:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 07:15:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 07:15:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 07:15:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 07:15:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 07:15:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 07:15:07,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:07,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282697438] [2023-04-02 07:15:07,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282697438] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:07,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:15:07,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 07:15:07,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514008140] [2023-04-02 07:15:07,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:07,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:15:07,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:07,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:15:07,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:15:07,404 INFO L87 Difference]: Start difference. First operand 1092 states and 1433 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 07:15:15,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:15:15,824 INFO L93 Difference]: Finished difference Result 2740 states and 3777 transitions. [2023-04-02 07:15:15,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 07:15:15,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 122 [2023-04-02 07:15:15,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:15:15,832 INFO L225 Difference]: With dead ends: 2740 [2023-04-02 07:15:15,832 INFO L226 Difference]: Without dead ends: 1677 [2023-04-02 07:15:15,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 07:15:15,836 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 869 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 2977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-04-02 07:15:15,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 306 Invalid, 2977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-04-02 07:15:15,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2023-04-02 07:15:16,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1117. [2023-04-02 07:15:16,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 759 states have (on average 1.2542819499341238) internal successors, (952), 795 states have internal predecessors, (952), 243 states have call successors, (243), 106 states have call predecessors, (243), 114 states have return successors, (272), 244 states have call predecessors, (272), 239 states have call successors, (272) [2023-04-02 07:15:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1467 transitions. [2023-04-02 07:15:16,304 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1467 transitions. Word has length 122 [2023-04-02 07:15:16,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:16,304 INFO L495 AbstractCegarLoop]: Abstraction has 1117 states and 1467 transitions. [2023-04-02 07:15:16,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 07:15:16,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1467 transitions. [2023-04-02 07:15:16,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-04-02 07:15:16,306 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:16,306 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-04-02 07:15:16,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 07:15:16,306 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:16,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:16,307 INFO L85 PathProgramCache]: Analyzing trace with hash -770133386, now seen corresponding path program 1 times [2023-04-02 07:15:16,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:16,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819069031] [2023-04-02 07:15:16,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:16,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:15:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 07:15:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:15:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 07:15:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 07:15:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 07:15:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 07:15:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 07:15:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 07:15:16,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:16,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819069031] [2023-04-02 07:15:16,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819069031] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:16,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:15:16,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 07:15:16,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307270169] [2023-04-02 07:15:16,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:16,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:15:16,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:16,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:15:16,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:15:16,907 INFO L87 Difference]: Start difference. First operand 1117 states and 1467 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 4 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 07:15:25,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:15:25,190 INFO L93 Difference]: Finished difference Result 2809 states and 3882 transitions. [2023-04-02 07:15:25,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 07:15:25,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 4 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 119 [2023-04-02 07:15:25,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:15:25,199 INFO L225 Difference]: With dead ends: 2809 [2023-04-02 07:15:25,199 INFO L226 Difference]: Without dead ends: 1722 [2023-04-02 07:15:25,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 07:15:25,202 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 889 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 2996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 07:15:25,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 334 Invalid, 2996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 07:15:25,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2023-04-02 07:15:25,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1129. [2023-04-02 07:15:25,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 771 states have (on average 1.2503242542153048) internal successors, (964), 807 states have internal predecessors, (964), 243 states have call successors, (243), 106 states have call predecessors, (243), 114 states have return successors, (272), 244 states have call predecessors, (272), 239 states have call successors, (272) [2023-04-02 07:15:25,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1479 transitions. [2023-04-02 07:15:25,739 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1479 transitions. Word has length 119 [2023-04-02 07:15:25,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:25,741 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1479 transitions. [2023-04-02 07:15:25,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 4 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 07:15:25,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1479 transitions. [2023-04-02 07:15:25,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-04-02 07:15:25,745 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:25,745 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-02 07:15:25,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 07:15:25,746 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:25,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:25,746 INFO L85 PathProgramCache]: Analyzing trace with hash -948516295, now seen corresponding path program 1 times [2023-04-02 07:15:25,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:25,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949197226] [2023-04-02 07:15:25,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:25,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:15:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 07:15:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:15:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 07:15:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 07:15:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 07:15:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 07:15:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 07:15:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:15:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 07:15:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 07:15:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:26,386 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-04-02 07:15:26,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:26,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949197226] [2023-04-02 07:15:26,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949197226] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:26,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:15:26,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 07:15:26,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85476288] [2023-04-02 07:15:26,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:26,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:15:26,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:26,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:15:26,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:15:26,389 INFO L87 Difference]: Start difference. First operand 1129 states and 1479 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 07:15:35,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:15:35,856 INFO L93 Difference]: Finished difference Result 2958 states and 4066 transitions. [2023-04-02 07:15:35,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 07:15:35,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 161 [2023-04-02 07:15:35,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:15:35,868 INFO L225 Difference]: With dead ends: 2958 [2023-04-02 07:15:35,869 INFO L226 Difference]: Without dead ends: 1859 [2023-04-02 07:15:35,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 07:15:35,873 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 1008 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 2510 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 2950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 2510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-04-02 07:15:35,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 338 Invalid, 2950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 2510 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-04-02 07:15:35,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1859 states. [2023-04-02 07:15:36,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1859 to 1183. [2023-04-02 07:15:36,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 821 states have (on average 1.2570036540803897) internal successors, (1032), 857 states have internal predecessors, (1032), 247 states have call successors, (247), 106 states have call predecessors, (247), 114 states have return successors, (276), 248 states have call predecessors, (276), 243 states have call successors, (276) [2023-04-02 07:15:36,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1555 transitions. [2023-04-02 07:15:36,550 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1555 transitions. Word has length 161 [2023-04-02 07:15:36,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:36,550 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1555 transitions. [2023-04-02 07:15:36,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 07:15:36,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1555 transitions. [2023-04-02 07:15:36,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 07:15:36,555 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:36,555 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 07:15:36,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 07:15:36,555 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:36,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:36,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1103999371, now seen corresponding path program 1 times [2023-04-02 07:15:36,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:36,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760640028] [2023-04-02 07:15:36,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:36,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:15:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 07:15:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:15:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 07:15:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 07:15:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 07:15:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 07:15:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-02 07:15:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:15:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 07:15:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 07:15:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:37,286 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-04-02 07:15:37,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:37,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760640028] [2023-04-02 07:15:37,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760640028] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:37,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:15:37,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 07:15:37,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120807399] [2023-04-02 07:15:37,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:37,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 07:15:37,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:37,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 07:15:37,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 07:15:37,288 INFO L87 Difference]: Start difference. First operand 1183 states and 1555 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 07:15:50,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:15:50,782 INFO L93 Difference]: Finished difference Result 3771 states and 5371 transitions. [2023-04-02 07:15:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 07:15:50,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 175 [2023-04-02 07:15:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:15:50,794 INFO L225 Difference]: With dead ends: 3771 [2023-04-02 07:15:50,794 INFO L226 Difference]: Without dead ends: 2618 [2023-04-02 07:15:50,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-04-02 07:15:50,798 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1190 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 4245 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 4768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 4245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-04-02 07:15:50,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 572 Invalid, 4768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 4245 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-04-02 07:15:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2023-04-02 07:15:51,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 1201. [2023-04-02 07:15:51,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 839 states have (on average 1.2586412395709177) internal successors, (1056), 875 states have internal predecessors, (1056), 247 states have call successors, (247), 106 states have call predecessors, (247), 114 states have return successors, (276), 248 states have call predecessors, (276), 243 states have call successors, (276) [2023-04-02 07:15:51,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1579 transitions. [2023-04-02 07:15:51,362 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1579 transitions. Word has length 175 [2023-04-02 07:15:51,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:51,363 INFO L495 AbstractCegarLoop]: Abstraction has 1201 states and 1579 transitions. [2023-04-02 07:15:51,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 07:15:51,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1579 transitions. [2023-04-02 07:15:51,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-04-02 07:15:51,366 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:51,367 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:15:51,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 07:15:51,367 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:51,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:51,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1897394009, now seen corresponding path program 1 times [2023-04-02 07:15:51,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:51,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134632563] [2023-04-02 07:15:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:51,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:15:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 07:15:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:15:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 07:15:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 07:15:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 07:15:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 07:15:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 07:15:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:15:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 07:15:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 07:15:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:52,956 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-04-02 07:15:52,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:52,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134632563] [2023-04-02 07:15:52,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134632563] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 07:15:52,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313900494] [2023-04-02 07:15:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:52,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:15:52,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:15:52,963 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 07:15:52,968 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 07:15:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:53,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 3067 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 07:15:53,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:15:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-04-02 07:15:53,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:15:53,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313900494] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:53,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 07:15:53,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2023-04-02 07:15:53,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291906340] [2023-04-02 07:15:53,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:53,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 07:15:53,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:53,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 07:15:53,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2023-04-02 07:15:53,883 INFO L87 Difference]: Start difference. First operand 1201 states and 1579 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-04-02 07:15:54,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:15:54,476 INFO L93 Difference]: Finished difference Result 2426 states and 3223 transitions. [2023-04-02 07:15:54,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 07:15:54,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 176 [2023-04-02 07:15:54,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:15:54,481 INFO L225 Difference]: With dead ends: 2426 [2023-04-02 07:15:54,481 INFO L226 Difference]: Without dead ends: 1255 [2023-04-02 07:15:54,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2023-04-02 07:15:54,485 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 149 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:15:54,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 1087 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:15:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2023-04-02 07:15:55,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1216. [2023-04-02 07:15:55,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 851 states have (on average 1.254994124559342) internal successors, (1068), 889 states have internal predecessors, (1068), 250 states have call successors, (250), 106 states have call predecessors, (250), 114 states have return successors, (279), 251 states have call predecessors, (279), 246 states have call successors, (279) [2023-04-02 07:15:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1597 transitions. [2023-04-02 07:15:55,059 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1597 transitions. Word has length 176 [2023-04-02 07:15:55,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:55,059 INFO L495 AbstractCegarLoop]: Abstraction has 1216 states and 1597 transitions. [2023-04-02 07:15:55,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-04-02 07:15:55,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1597 transitions. [2023-04-02 07:15:55,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-04-02 07:15:55,062 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:55,062 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:55,080 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 07:15:55,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-04-02 07:15:55,277 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:55,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:55,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1293392088, now seen corresponding path program 1 times [2023-04-02 07:15:55,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:55,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047273969] [2023-04-02 07:15:55,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:55,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:15:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 07:15:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:15:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 07:15:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 07:15:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 07:15:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 07:15:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 07:15:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-02 07:15:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 07:15:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 07:15:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 07:15:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 07:15:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 07:15:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:55,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 07:15:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:56,000 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 07:15:56,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:56,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047273969] [2023-04-02 07:15:56,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047273969] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 07:15:56,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148470962] [2023-04-02 07:15:56,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:56,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:15:56,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:15:56,002 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 07:15:56,005 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 07:15:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:56,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 3040 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 07:15:56,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:15:56,970 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 07:15:56,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:15:56,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148470962] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:56,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 07:15:56,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2023-04-02 07:15:56,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551489251] [2023-04-02 07:15:56,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:56,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 07:15:56,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:56,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 07:15:56,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-02 07:15:56,973 INFO L87 Difference]: Start difference. First operand 1216 states and 1597 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 07:15:57,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:15:57,755 INFO L93 Difference]: Finished difference Result 2461 states and 3228 transitions. [2023-04-02 07:15:57,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 07:15:57,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) Word has length 180 [2023-04-02 07:15:57,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:15:57,760 INFO L225 Difference]: With dead ends: 2461 [2023-04-02 07:15:57,760 INFO L226 Difference]: Without dead ends: 1221 [2023-04-02 07:15:57,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-04-02 07:15:57,763 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 26 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 07:15:57,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3226 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 07:15:57,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2023-04-02 07:15:58,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1192. [2023-04-02 07:15:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 827 states have (on average 1.2466747279322854) internal successors, (1031), 864 states have internal predecessors, (1031), 248 states have call successors, (248), 110 states have call predecessors, (248), 116 states have return successors, (269), 244 states have call predecessors, (269), 243 states have call successors, (269) [2023-04-02 07:15:58,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1548 transitions. [2023-04-02 07:15:58,332 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1548 transitions. Word has length 180 [2023-04-02 07:15:58,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:58,335 INFO L495 AbstractCegarLoop]: Abstraction has 1192 states and 1548 transitions. [2023-04-02 07:15:58,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 07:15:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1548 transitions. [2023-04-02 07:15:58,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-04-02 07:15:58,338 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:58,338 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:58,356 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 07:15:58,556 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,SelfDestructingSolverStorable11 [2023-04-02 07:15:58,557 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:58,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:58,557 INFO L85 PathProgramCache]: Analyzing trace with hash -382087118, now seen corresponding path program 1 times [2023-04-02 07:15:58,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:58,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807575418] [2023-04-02 07:15:58,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:58,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:58,655 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:15:58,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1148522065] [2023-04-02 07:15:58,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:58,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:15:58,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:15:58,658 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 07:15:58,681 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 07:15:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 3279 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 07:15:59,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:15:59,589 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-04-02 07:15:59,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:15:59,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:59,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807575418] [2023-04-02 07:15:59,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:15:59,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148522065] [2023-04-02 07:15:59,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148522065] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:59,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:15:59,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 07:15:59,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673792972] [2023-04-02 07:15:59,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:59,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 07:15:59,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:59,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 07:15:59,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:15:59,592 INFO L87 Difference]: Start difference. First operand 1192 states and 1548 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-04-02 07:16:00,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:00,213 INFO L93 Difference]: Finished difference Result 1333 states and 1738 transitions. [2023-04-02 07:16:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 07:16:00,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 211 [2023-04-02 07:16:00,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:00,218 INFO L225 Difference]: With dead ends: 1333 [2023-04-02 07:16:00,218 INFO L226 Difference]: Without dead ends: 1245 [2023-04-02 07:16:00,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:16:00,219 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 148 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:00,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 1088 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:16:00,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2023-04-02 07:16:00,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1195. [2023-04-02 07:16:00,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 830 states have (on average 1.2457831325301205) internal successors, (1034), 867 states have internal predecessors, (1034), 248 states have call successors, (248), 110 states have call predecessors, (248), 116 states have return successors, (269), 244 states have call predecessors, (269), 243 states have call successors, (269) [2023-04-02 07:16:00,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1551 transitions. [2023-04-02 07:16:00,854 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1551 transitions. Word has length 211 [2023-04-02 07:16:00,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:00,854 INFO L495 AbstractCegarLoop]: Abstraction has 1195 states and 1551 transitions. [2023-04-02 07:16:00,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-04-02 07:16:00,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1551 transitions. [2023-04-02 07:16:00,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-04-02 07:16:00,856 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:00,856 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:00,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-04-02 07:16:01,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:01,062 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:01,062 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:01,062 INFO L85 PathProgramCache]: Analyzing trace with hash 481688645, now seen corresponding path program 1 times [2023-04-02 07:16:01,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:01,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783153362] [2023-04-02 07:16:01,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:01,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:01,167 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:16:01,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1308099000] [2023-04-02 07:16:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:01,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:01,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:01,169 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 07:16:01,172 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 07:16:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:02,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 3367 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 07:16:02,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:02,099 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-04-02 07:16:02,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:16:02,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:02,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783153362] [2023-04-02 07:16:02,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:16:02,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308099000] [2023-04-02 07:16:02,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308099000] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:02,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:02,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 07:16:02,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672106606] [2023-04-02 07:16:02,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:02,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 07:16:02,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:02,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 07:16:02,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:16:02,102 INFO L87 Difference]: Start difference. First operand 1195 states and 1551 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-04-02 07:16:02,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:02,761 INFO L93 Difference]: Finished difference Result 1345 states and 1761 transitions. [2023-04-02 07:16:02,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 07:16:02,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 229 [2023-04-02 07:16:02,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:02,767 INFO L225 Difference]: With dead ends: 1345 [2023-04-02 07:16:02,767 INFO L226 Difference]: Without dead ends: 1256 [2023-04-02 07:16:02,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:16:02,768 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 155 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:02,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1079 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:16:02,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2023-04-02 07:16:03,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1199. [2023-04-02 07:16:03,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 834 states have (on average 1.2446043165467626) internal successors, (1038), 871 states have internal predecessors, (1038), 248 states have call successors, (248), 110 states have call predecessors, (248), 116 states have return successors, (269), 244 states have call predecessors, (269), 243 states have call successors, (269) [2023-04-02 07:16:03,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1555 transitions. [2023-04-02 07:16:03,393 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1555 transitions. Word has length 229 [2023-04-02 07:16:03,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:03,393 INFO L495 AbstractCegarLoop]: Abstraction has 1199 states and 1555 transitions. [2023-04-02 07:16:03,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-04-02 07:16:03,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1555 transitions. [2023-04-02 07:16:03,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-04-02 07:16:03,396 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:03,396 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:03,413 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 07:16:03,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:03,610 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:03,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:03,611 INFO L85 PathProgramCache]: Analyzing trace with hash 606700024, now seen corresponding path program 1 times [2023-04-02 07:16:03,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:03,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302224704] [2023-04-02 07:16:03,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:03,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:03,691 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:16:03,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329631185] [2023-04-02 07:16:03,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:03,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:03,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:03,693 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 07:16:03,714 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 07:16:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:04,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 3451 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 07:16:04,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:04,517 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-04-02 07:16:04,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:16:04,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:04,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302224704] [2023-04-02 07:16:04,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:16:04,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329631185] [2023-04-02 07:16:04,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329631185] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:04,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:04,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 07:16:04,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156722797] [2023-04-02 07:16:04,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:04,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 07:16:04,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:04,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 07:16:04,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:16:04,520 INFO L87 Difference]: Start difference. First operand 1199 states and 1555 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-04-02 07:16:05,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:05,111 INFO L93 Difference]: Finished difference Result 1352 states and 1772 transitions. [2023-04-02 07:16:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 07:16:05,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 247 [2023-04-02 07:16:05,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:05,118 INFO L225 Difference]: With dead ends: 1352 [2023-04-02 07:16:05,118 INFO L226 Difference]: Without dead ends: 1263 [2023-04-02 07:16:05,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:16:05,119 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 156 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:05,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1079 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:16:05,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2023-04-02 07:16:05,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1202. [2023-04-02 07:16:05,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 837 states have (on average 1.2437275985663083) internal successors, (1041), 871 states have internal predecessors, (1041), 248 states have call successors, (248), 110 states have call predecessors, (248), 116 states have return successors, (269), 244 states have call predecessors, (269), 243 states have call successors, (269) [2023-04-02 07:16:05,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1558 transitions. [2023-04-02 07:16:05,657 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1558 transitions. Word has length 247 [2023-04-02 07:16:05,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:05,658 INFO L495 AbstractCegarLoop]: Abstraction has 1202 states and 1558 transitions. [2023-04-02 07:16:05,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-04-02 07:16:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1558 transitions. [2023-04-02 07:16:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-04-02 07:16:05,660 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:05,661 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:05,675 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 07:16:05,875 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,SelfDestructingSolverStorable14 [2023-04-02 07:16:05,875 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:05,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:05,876 INFO L85 PathProgramCache]: Analyzing trace with hash -876057062, now seen corresponding path program 1 times [2023-04-02 07:16:05,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:05,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980286741] [2023-04-02 07:16:05,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:05,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:05,955 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:16:05,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481823080] [2023-04-02 07:16:05,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:05,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:05,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:05,957 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 07:16:05,980 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 07:16:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:06,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 3452 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 07:16:06,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:06,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-04-02 07:16:07,043 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-04-02 07:16:07,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:16:07,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:07,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980286741] [2023-04-02 07:16:07,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:16:07,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481823080] [2023-04-02 07:16:07,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481823080] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:07,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:07,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 07:16:07,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656800728] [2023-04-02 07:16:07,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:07,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:16:07,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:07,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:16:07,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:16:07,047 INFO L87 Difference]: Start difference. First operand 1202 states and 1558 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2023-04-02 07:16:09,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-04-02 07:16:11,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-04-02 07:16:14,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-04-02 07:16:16,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:16,176 INFO L93 Difference]: Finished difference Result 3185 states and 4130 transitions. [2023-04-02 07:16:16,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 07:16:16,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 248 [2023-04-02 07:16:16,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:16,185 INFO L225 Difference]: With dead ends: 3185 [2023-04-02 07:16:16,186 INFO L226 Difference]: Without dead ends: 2013 [2023-04-02 07:16:16,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 239 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-04-02 07:16:16,190 INFO L413 NwaCegarLoop]: 967 mSDtfsCounter, 487 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 19 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:16,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 2698 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 306 Invalid, 4 Unknown, 0 Unchecked, 7.9s Time] [2023-04-02 07:16:16,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2023-04-02 07:16:17,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1920. [2023-04-02 07:16:17,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1353 states have (on average 1.2416851441241685) internal successors, (1680), 1406 states have internal predecessors, (1680), 380 states have call successors, (380), 178 states have call predecessors, (380), 186 states have return successors, (419), 368 states have call predecessors, (419), 375 states have call successors, (419) [2023-04-02 07:16:17,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2479 transitions. [2023-04-02 07:16:17,088 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2479 transitions. Word has length 248 [2023-04-02 07:16:17,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:17,088 INFO L495 AbstractCegarLoop]: Abstraction has 1920 states and 2479 transitions. [2023-04-02 07:16:17,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2023-04-02 07:16:17,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2479 transitions. [2023-04-02 07:16:17,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-04-02 07:16:17,092 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:17,092 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:17,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-02 07:16:17,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-04-02 07:16:17,305 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:17,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:17,306 INFO L85 PathProgramCache]: Analyzing trace with hash -488473010, now seen corresponding path program 1 times [2023-04-02 07:16:17,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:17,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720244981] [2023-04-02 07:16:17,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:17,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:17,400 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:16:17,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808184138] [2023-04-02 07:16:17,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:17,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:17,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:17,402 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:16:17,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-02 07:16:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:18,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 3461 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-02 07:16:18,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-04-02 07:16:18,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:16:18,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:18,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720244981] [2023-04-02 07:16:18,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:16:18,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808184138] [2023-04-02 07:16:18,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808184138] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:18,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:18,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 07:16:18,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979907609] [2023-04-02 07:16:18,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:18,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 07:16:18,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:18,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 07:16:18,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 07:16:18,408 INFO L87 Difference]: Start difference. First operand 1920 states and 2479 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-02 07:16:19,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:19,423 INFO L93 Difference]: Finished difference Result 3826 states and 4973 transitions. [2023-04-02 07:16:19,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 07:16:19,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 252 [2023-04-02 07:16:19,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:19,431 INFO L225 Difference]: With dead ends: 3826 [2023-04-02 07:16:19,431 INFO L226 Difference]: Without dead ends: 1936 [2023-04-02 07:16:19,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 07:16:19,437 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 2 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3842 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:19,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3842 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:16:19,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2023-04-02 07:16:20,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1930. [2023-04-02 07:16:20,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1930 states, 1360 states have (on average 1.2404411764705883) internal successors, (1687), 1413 states have internal predecessors, (1687), 380 states have call successors, (380), 178 states have call predecessors, (380), 189 states have return successors, (426), 371 states have call predecessors, (426), 375 states have call successors, (426) [2023-04-02 07:16:20,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 2493 transitions. [2023-04-02 07:16:20,326 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 2493 transitions. Word has length 252 [2023-04-02 07:16:20,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:20,326 INFO L495 AbstractCegarLoop]: Abstraction has 1930 states and 2493 transitions. [2023-04-02 07:16:20,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-02 07:16:20,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 2493 transitions. [2023-04-02 07:16:20,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-04-02 07:16:20,329 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:20,329 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:20,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-02 07:16:20,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:20,545 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:20,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:20,546 INFO L85 PathProgramCache]: Analyzing trace with hash 250653452, now seen corresponding path program 1 times [2023-04-02 07:16:20,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:20,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861782149] [2023-04-02 07:16:20,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:20,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:20,633 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:16:20,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055538157] [2023-04-02 07:16:20,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:20,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:20,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:20,635 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:16:20,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-02 07:16:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:21,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 3443 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-02 07:16:21,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:21,634 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-04-02 07:16:21,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:16:21,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:21,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861782149] [2023-04-02 07:16:21,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:16:21,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055538157] [2023-04-02 07:16:21,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055538157] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:21,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:21,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 07:16:21,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802063665] [2023-04-02 07:16:21,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:21,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:16:21,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:21,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:16:21,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:16:21,636 INFO L87 Difference]: Start difference. First operand 1930 states and 2493 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-02 07:16:22,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:22,648 INFO L93 Difference]: Finished difference Result 3714 states and 4802 transitions. [2023-04-02 07:16:22,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 07:16:22,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 252 [2023-04-02 07:16:22,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:22,655 INFO L225 Difference]: With dead ends: 3714 [2023-04-02 07:16:22,655 INFO L226 Difference]: Without dead ends: 1814 [2023-04-02 07:16:22,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 07:16:22,661 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 113 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:22,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 2459 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 07:16:22,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2023-04-02 07:16:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1781. [2023-04-02 07:16:23,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1263 states have (on average 1.234362628661916) internal successors, (1559), 1307 states have internal predecessors, (1559), 335 states have call successors, (335), 172 states have call predecessors, (335), 182 states have return successors, (374), 327 states have call predecessors, (374), 331 states have call successors, (374) [2023-04-02 07:16:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2268 transitions. [2023-04-02 07:16:23,522 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2268 transitions. Word has length 252 [2023-04-02 07:16:23,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:23,522 INFO L495 AbstractCegarLoop]: Abstraction has 1781 states and 2268 transitions. [2023-04-02 07:16:23,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-02 07:16:23,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2268 transitions. [2023-04-02 07:16:23,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-04-02 07:16:23,526 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:23,526 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:23,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-04-02 07:16:23,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-04-02 07:16:23,746 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:23,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:23,746 INFO L85 PathProgramCache]: Analyzing trace with hash 735506764, now seen corresponding path program 1 times [2023-04-02 07:16:23,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:23,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116148011] [2023-04-02 07:16:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:23,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:23,823 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:16:23,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [416357517] [2023-04-02 07:16:23,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:23,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:23,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:23,825 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:16:23,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-04-02 07:16:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:24,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 3459 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 07:16:24,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-04-02 07:16:24,992 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 07:16:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-04-02 07:16:25,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:25,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116148011] [2023-04-02 07:16:25,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:16:25,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416357517] [2023-04-02 07:16:25,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416357517] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 07:16:25,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-04-02 07:16:25,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 12 [2023-04-02 07:16:25,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43274616] [2023-04-02 07:16:25,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-04-02 07:16:25,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 07:16:25,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:25,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 07:16:25,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-04-02 07:16:25,459 INFO L87 Difference]: Start difference. First operand 1781 states and 2268 transitions. Second operand has 12 states, 12 states have (on average 22.166666666666668) internal successors, (266), 12 states have internal predecessors, (266), 9 states have call successors, (64), 9 states have call predecessors, (64), 7 states have return successors, (58), 8 states have call predecessors, (58), 8 states have call successors, (58) [2023-04-02 07:16:29,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:29,648 INFO L93 Difference]: Finished difference Result 3970 states and 5219 transitions. [2023-04-02 07:16:29,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 07:16:29,649 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 22.166666666666668) internal successors, (266), 12 states have internal predecessors, (266), 9 states have call successors, (64), 9 states have call predecessors, (64), 7 states have return successors, (58), 8 states have call predecessors, (58), 8 states have call successors, (58) Word has length 252 [2023-04-02 07:16:29,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:29,662 INFO L225 Difference]: With dead ends: 3970 [2023-04-02 07:16:29,662 INFO L226 Difference]: Without dead ends: 3967 [2023-04-02 07:16:29,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 494 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=162, Unknown=0, NotChecked=0, Total=272 [2023-04-02 07:16:29,664 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 3356 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 1817 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 4000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1817 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:29,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3392 Valid, 1725 Invalid, 4000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1817 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 07:16:29,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3967 states. [2023-04-02 07:16:31,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3967 to 3750. [2023-04-02 07:16:31,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3750 states, 2649 states have (on average 1.2359380898452246) internal successors, (3274), 2750 states have internal predecessors, (3274), 721 states have call successors, (721), 336 states have call predecessors, (721), 379 states have return successors, (865), 721 states have call predecessors, (865), 717 states have call successors, (865) [2023-04-02 07:16:31,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 4860 transitions. [2023-04-02 07:16:31,353 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 4860 transitions. Word has length 252 [2023-04-02 07:16:31,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:31,353 INFO L495 AbstractCegarLoop]: Abstraction has 3750 states and 4860 transitions. [2023-04-02 07:16:31,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.166666666666668) internal successors, (266), 12 states have internal predecessors, (266), 9 states have call successors, (64), 9 states have call predecessors, (64), 7 states have return successors, (58), 8 states have call predecessors, (58), 8 states have call successors, (58) [2023-04-02 07:16:31,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 4860 transitions. [2023-04-02 07:16:31,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-04-02 07:16:31,356 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:31,356 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:31,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-04-02 07:16:31,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:31,571 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:31,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:31,572 INFO L85 PathProgramCache]: Analyzing trace with hash -916352704, now seen corresponding path program 1 times [2023-04-02 07:16:31,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:31,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854681321] [2023-04-02 07:16:31,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:31,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:31,645 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:16:31,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392196981] [2023-04-02 07:16:31,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:31,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:31,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:31,646 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:16:31,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-04-02 07:16:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:32,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 3436 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 07:16:32,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-04-02 07:16:32,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:16:32,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:32,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854681321] [2023-04-02 07:16:32,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:16:32,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392196981] [2023-04-02 07:16:32,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392196981] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:32,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:32,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 07:16:32,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845161297] [2023-04-02 07:16:32,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:32,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 07:16:32,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:32,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 07:16:32,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:16:32,620 INFO L87 Difference]: Start difference. First operand 3750 states and 4860 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-04-02 07:16:34,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:34,473 INFO L93 Difference]: Finished difference Result 7574 states and 9909 transitions. [2023-04-02 07:16:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 07:16:34,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 261 [2023-04-02 07:16:34,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:34,490 INFO L225 Difference]: With dead ends: 7574 [2023-04-02 07:16:34,490 INFO L226 Difference]: Without dead ends: 3854 [2023-04-02 07:16:34,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:16:34,501 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 13 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:34,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1263 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:16:34,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3854 states. [2023-04-02 07:16:36,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3854 to 3781. [2023-04-02 07:16:36,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3781 states, 2680 states have (on average 1.2324626865671642) internal successors, (3303), 2781 states have internal predecessors, (3303), 721 states have call successors, (721), 336 states have call predecessors, (721), 379 states have return successors, (865), 721 states have call predecessors, (865), 717 states have call successors, (865) [2023-04-02 07:16:36,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 4889 transitions. [2023-04-02 07:16:36,324 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 4889 transitions. Word has length 261 [2023-04-02 07:16:36,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:36,325 INFO L495 AbstractCegarLoop]: Abstraction has 3781 states and 4889 transitions. [2023-04-02 07:16:36,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-04-02 07:16:36,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 4889 transitions. [2023-04-02 07:16:36,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-04-02 07:16:36,329 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:36,329 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:36,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-04-02 07:16:36,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:36,545 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:36,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:36,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1548400149, now seen corresponding path program 1 times [2023-04-02 07:16:36,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:36,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86710973] [2023-04-02 07:16:36,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:36,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:36,626 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:16:36,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1555399302] [2023-04-02 07:16:36,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:36,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:36,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:36,628 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:16:36,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-04-02 07:16:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:37,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 3434 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 07:16:37,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:37,706 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-04-02 07:16:37,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:16:37,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:37,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86710973] [2023-04-02 07:16:37,707 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:16:37,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555399302] [2023-04-02 07:16:37,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555399302] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:37,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:37,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 07:16:37,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404457912] [2023-04-02 07:16:37,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:37,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 07:16:37,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:37,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 07:16:37,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:16:37,709 INFO L87 Difference]: Start difference. First operand 3781 states and 4889 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-04-02 07:16:39,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:39,522 INFO L93 Difference]: Finished difference Result 7563 states and 9836 transitions. [2023-04-02 07:16:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 07:16:39,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 262 [2023-04-02 07:16:39,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:39,537 INFO L225 Difference]: With dead ends: 7563 [2023-04-02 07:16:39,537 INFO L226 Difference]: Without dead ends: 3803 [2023-04-02 07:16:39,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:16:39,547 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 8 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:39,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1269 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:16:39,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2023-04-02 07:16:41,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3747. [2023-04-02 07:16:41,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3747 states, 2650 states have (on average 1.2335849056603774) internal successors, (3269), 2751 states have internal predecessors, (3269), 720 states have call successors, (720), 336 states have call predecessors, (720), 376 states have return successors, (857), 717 states have call predecessors, (857), 716 states have call successors, (857) [2023-04-02 07:16:41,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3747 states to 3747 states and 4846 transitions. [2023-04-02 07:16:41,234 INFO L78 Accepts]: Start accepts. Automaton has 3747 states and 4846 transitions. Word has length 262 [2023-04-02 07:16:41,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:41,234 INFO L495 AbstractCegarLoop]: Abstraction has 3747 states and 4846 transitions. [2023-04-02 07:16:41,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-04-02 07:16:41,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3747 states and 4846 transitions. [2023-04-02 07:16:41,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-04-02 07:16:41,238 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:41,238 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:41,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-04-02 07:16:41,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-04-02 07:16:41,453 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:41,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:41,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1627539485, now seen corresponding path program 1 times [2023-04-02 07:16:41,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:41,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588304463] [2023-04-02 07:16:41,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:41,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:41,535 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:16:41,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229960595] [2023-04-02 07:16:41,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:41,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:41,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:41,537 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:16:41,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-04-02 07:16:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:42,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 3485 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 07:16:42,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:42,693 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-04-02 07:16:42,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:16:42,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:42,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588304463] [2023-04-02 07:16:42,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:16:42,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229960595] [2023-04-02 07:16:42,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229960595] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:42,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:42,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 07:16:42,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688680944] [2023-04-02 07:16:42,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:42,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 07:16:42,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:42,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 07:16:42,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:16:42,695 INFO L87 Difference]: Start difference. First operand 3747 states and 4846 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-04-02 07:16:44,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:44,495 INFO L93 Difference]: Finished difference Result 3913 states and 5089 transitions. [2023-04-02 07:16:44,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 07:16:44,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 271 [2023-04-02 07:16:44,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:44,510 INFO L225 Difference]: With dead ends: 3913 [2023-04-02 07:16:44,510 INFO L226 Difference]: Without dead ends: 3815 [2023-04-02 07:16:44,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:16:44,512 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 71 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:44,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1208 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 07:16:44,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3815 states. [2023-04-02 07:16:46,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3815 to 3747. [2023-04-02 07:16:46,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3747 states, 2650 states have (on average 1.2309433962264151) internal successors, (3262), 2747 states have internal predecessors, (3262), 720 states have call successors, (720), 336 states have call predecessors, (720), 376 states have return successors, (857), 717 states have call predecessors, (857), 716 states have call successors, (857) [2023-04-02 07:16:46,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3747 states to 3747 states and 4839 transitions. [2023-04-02 07:16:46,286 INFO L78 Accepts]: Start accepts. Automaton has 3747 states and 4839 transitions. Word has length 271 [2023-04-02 07:16:46,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:46,287 INFO L495 AbstractCegarLoop]: Abstraction has 3747 states and 4839 transitions. [2023-04-02 07:16:46,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-04-02 07:16:46,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3747 states and 4839 transitions. [2023-04-02 07:16:46,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-04-02 07:16:46,291 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:46,291 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:46,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-04-02 07:16:46,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-04-02 07:16:46,505 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:46,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash -382984051, now seen corresponding path program 1 times [2023-04-02 07:16:46,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:46,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961759501] [2023-04-02 07:16:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:46,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:46,594 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:16:46,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [199258179] [2023-04-02 07:16:46,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:46,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:46,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:46,595 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:16:46,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-04-02 07:16:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:47,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 3508 conjuncts, 19 conjunts are in the unsatisfiable core [2023-04-02 07:16:47,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:47,785 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-04-02 07:16:47,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:16:47,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:47,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961759501] [2023-04-02 07:16:47,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:16:47,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199258179] [2023-04-02 07:16:47,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199258179] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:47,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:47,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 07:16:47,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143009043] [2023-04-02 07:16:47,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:47,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 07:16:47,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:47,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 07:16:47,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 07:16:47,788 INFO L87 Difference]: Start difference. First operand 3747 states and 4839 transitions. Second operand has 10 states, 10 states have (on average 15.1) internal successors, (151), 7 states have internal predecessors, (151), 2 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (38), 5 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-02 07:16:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:50,218 INFO L93 Difference]: Finished difference Result 4067 states and 5325 transitions. [2023-04-02 07:16:50,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 07:16:50,221 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 7 states have internal predecessors, (151), 2 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (38), 5 states have call predecessors, (38), 2 states have call successors, (38) Word has length 277 [2023-04-02 07:16:50,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:50,233 INFO L225 Difference]: With dead ends: 4067 [2023-04-02 07:16:50,233 INFO L226 Difference]: Without dead ends: 3966 [2023-04-02 07:16:50,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-02 07:16:50,236 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 73 mSDsluCounter, 5188 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 5841 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:50,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 5841 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 07:16:50,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3966 states. [2023-04-02 07:16:52,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3966 to 3762. [2023-04-02 07:16:52,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3762 states, 2661 states have (on average 1.229988726042841) internal successors, (3273), 2758 states have internal predecessors, (3273), 720 states have call successors, (720), 336 states have call predecessors, (720), 380 states have return successors, (869), 721 states have call predecessors, (869), 716 states have call successors, (869) [2023-04-02 07:16:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 4862 transitions. [2023-04-02 07:16:52,036 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 4862 transitions. Word has length 277 [2023-04-02 07:16:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:52,036 INFO L495 AbstractCegarLoop]: Abstraction has 3762 states and 4862 transitions. [2023-04-02 07:16:52,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 7 states have internal predecessors, (151), 2 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (38), 5 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-02 07:16:52,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 4862 transitions. [2023-04-02 07:16:52,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-04-02 07:16:52,040 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:52,040 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:52,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-04-02 07:16:52,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-04-02 07:16:52,254 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:52,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:52,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1337212946, now seen corresponding path program 1 times [2023-04-02 07:16:52,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:52,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126672936] [2023-04-02 07:16:52,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:52,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:52,337 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:16:52,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [459996137] [2023-04-02 07:16:52,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:52,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:52,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:52,338 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:16:52,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-04-02 07:16:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:53,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 3499 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 07:16:53,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:53,488 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-04-02 07:16:53,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:16:53,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:53,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126672936] [2023-04-02 07:16:53,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:16:53,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459996137] [2023-04-02 07:16:53,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459996137] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:53,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:53,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 07:16:53,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884976668] [2023-04-02 07:16:53,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:53,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 07:16:53,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:53,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 07:16:53,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:16:53,491 INFO L87 Difference]: Start difference. First operand 3762 states and 4862 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-02 07:16:55,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:55,187 INFO L93 Difference]: Finished difference Result 7579 states and 9905 transitions. [2023-04-02 07:16:55,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 07:16:55,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 277 [2023-04-02 07:16:55,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:55,201 INFO L225 Difference]: With dead ends: 7579 [2023-04-02 07:16:55,201 INFO L226 Difference]: Without dead ends: 3847 [2023-04-02 07:16:55,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 07:16:55,217 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 129 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:55,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1821 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:16:55,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3847 states. [2023-04-02 07:16:56,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3847 to 3762. [2023-04-02 07:16:56,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3762 states, 2661 states have (on average 1.2157083803081548) internal successors, (3235), 2758 states have internal predecessors, (3235), 720 states have call successors, (720), 336 states have call predecessors, (720), 380 states have return successors, (869), 721 states have call predecessors, (869), 716 states have call successors, (869) [2023-04-02 07:16:56,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 4824 transitions. [2023-04-02 07:16:56,958 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 4824 transitions. Word has length 277 [2023-04-02 07:16:56,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:56,959 INFO L495 AbstractCegarLoop]: Abstraction has 3762 states and 4824 transitions. [2023-04-02 07:16:56,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-02 07:16:56,959 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 4824 transitions. [2023-04-02 07:16:56,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-04-02 07:16:56,963 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:56,963 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:56,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-04-02 07:16:57,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:57,177 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:57,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:57,178 INFO L85 PathProgramCache]: Analyzing trace with hash -306041037, now seen corresponding path program 1 times [2023-04-02 07:16:57,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:57,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081764997] [2023-04-02 07:16:57,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:57,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:57,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:16:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:16:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:57,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:16:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:57,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:16:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:57,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:57,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 07:16:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:16:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 07:16:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 07:16:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 07:16:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 07:16:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 07:16:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:16:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 07:16:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 07:16:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 07:16:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-04-02 07:16:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 07:16:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-04-02 07:16:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-04-02 07:16:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-04-02 07:16:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 07:16:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-04-02 07:16:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 07:16:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 07:16:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-04-02 07:16:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-04-02 07:16:58,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:58,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081764997] [2023-04-02 07:16:58,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081764997] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 07:16:58,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130480754] [2023-04-02 07:16:58,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:58,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:16:58,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:16:58,363 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:16:58,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-04-02 07:16:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 3487 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 07:16:59,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:16:59,473 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-04-02 07:16:59,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:16:59,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130480754] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:59,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 07:16:59,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2023-04-02 07:16:59,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695181728] [2023-04-02 07:16:59,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:59,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 07:16:59,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:59,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 07:16:59,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-04-02 07:16:59,476 INFO L87 Difference]: Start difference. First operand 3762 states and 4824 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-02 07:17:01,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:17:01,195 INFO L93 Difference]: Finished difference Result 7543 states and 9735 transitions. [2023-04-02 07:17:01,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 07:17:01,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 284 [2023-04-02 07:17:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:17:01,206 INFO L225 Difference]: With dead ends: 7543 [2023-04-02 07:17:01,206 INFO L226 Difference]: Without dead ends: 3811 [2023-04-02 07:17:01,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-04-02 07:17:01,218 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 12 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:17:01,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1242 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:17:01,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2023-04-02 07:17:02,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 3754. [2023-04-02 07:17:02,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 2653 states have (on average 1.2088202035431588) internal successors, (3207), 2750 states have internal predecessors, (3207), 720 states have call successors, (720), 336 states have call predecessors, (720), 380 states have return successors, (869), 721 states have call predecessors, (869), 716 states have call successors, (869) [2023-04-02 07:17:02,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 4796 transitions. [2023-04-02 07:17:02,949 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 4796 transitions. Word has length 284 [2023-04-02 07:17:02,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:17:02,949 INFO L495 AbstractCegarLoop]: Abstraction has 3754 states and 4796 transitions. [2023-04-02 07:17:02,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-02 07:17:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 4796 transitions. [2023-04-02 07:17:02,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-04-02 07:17:02,954 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:17:02,954 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:02,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-04-02 07:17:03,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:17:03,158 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:17:03,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:17:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash -810881165, now seen corresponding path program 1 times [2023-04-02 07:17:03,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:17:03,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143576145] [2023-04-02 07:17:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:03,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:17:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:03,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:17:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:03,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:17:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:03,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:17:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:03,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:03,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:17:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:03,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:03,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 07:17:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:17:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 07:17:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 07:17:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 07:17:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 07:17:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 07:17:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 07:17:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 07:17:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 07:17:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 07:17:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-04-02 07:17:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 07:17:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-04-02 07:17:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-04-02 07:17:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-04-02 07:17:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 07:17:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-04-02 07:17:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 07:17:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 07:17:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-04-02 07:17:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:04,366 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-04-02 07:17:04,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:17:04,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143576145] [2023-04-02 07:17:04,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143576145] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 07:17:04,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037684622] [2023-04-02 07:17:04,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:04,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:17:04,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:17:04,368 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:17:04,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-04-02 07:17:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:05,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 3485 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 07:17:05,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:17:05,431 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-04-02 07:17:05,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:17:05,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037684622] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:17:05,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 07:17:05,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2023-04-02 07:17:05,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371386082] [2023-04-02 07:17:05,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:17:05,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 07:17:05,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:17:05,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 07:17:05,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-04-02 07:17:05,432 INFO L87 Difference]: Start difference. First operand 3754 states and 4796 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-02 07:17:06,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:17:06,797 INFO L93 Difference]: Finished difference Result 6720 states and 8602 transitions. [2023-04-02 07:17:06,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 07:17:06,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 284 [2023-04-02 07:17:06,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:17:06,808 INFO L225 Difference]: With dead ends: 6720 [2023-04-02 07:17:06,808 INFO L226 Difference]: Without dead ends: 2982 [2023-04-02 07:17:06,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-04-02 07:17:06,818 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 5 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:17:06,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1271 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:17:06,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2023-04-02 07:17:08,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2895. [2023-04-02 07:17:08,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2095 states have (on average 1.2128878281622912) internal successors, (2541), 2157 states have internal predecessors, (2541), 523 states have call successors, (523), 247 states have call predecessors, (523), 276 states have return successors, (610), 528 states have call predecessors, (610), 519 states have call successors, (610) [2023-04-02 07:17:08,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 3674 transitions. [2023-04-02 07:17:08,261 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 3674 transitions. Word has length 284 [2023-04-02 07:17:08,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:17:08,262 INFO L495 AbstractCegarLoop]: Abstraction has 2895 states and 3674 transitions. [2023-04-02 07:17:08,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-02 07:17:08,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 3674 transitions. [2023-04-02 07:17:08,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-04-02 07:17:08,264 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:17:08,265 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:08,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-04-02 07:17:08,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-04-02 07:17:08,465 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:17:08,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:17:08,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2093936401, now seen corresponding path program 1 times [2023-04-02 07:17:08,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:17:08,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065979928] [2023-04-02 07:17:08,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:08,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:17:08,543 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:17:08,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [790027536] [2023-04-02 07:17:08,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:08,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:17:08,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:17:08,544 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:17:08,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-04-02 07:17:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:09,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 3522 conjuncts, 25 conjunts are in the unsatisfiable core [2023-04-02 07:17:09,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:17:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-04-02 07:17:09,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:17:09,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:17:09,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065979928] [2023-04-02 07:17:09,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:17:09,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790027536] [2023-04-02 07:17:09,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790027536] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:17:09,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:17:09,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 07:17:09,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939192317] [2023-04-02 07:17:09,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:17:09,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 07:17:09,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:17:09,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 07:17:09,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 07:17:09,641 INFO L87 Difference]: Start difference. First operand 2895 states and 3674 transitions. Second operand has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (39), 4 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-02 07:17:11,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:17:11,001 INFO L93 Difference]: Finished difference Result 5192 states and 6627 transitions. [2023-04-02 07:17:11,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 07:17:11,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (39), 4 states have call predecessors, (39), 2 states have call successors, (39) Word has length 281 [2023-04-02 07:17:11,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:17:11,008 INFO L225 Difference]: With dead ends: 5192 [2023-04-02 07:17:11,009 INFO L226 Difference]: Without dead ends: 2880 [2023-04-02 07:17:11,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 07:17:11,014 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 2 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3893 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:17:11,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3893 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:17:11,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2023-04-02 07:17:12,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 2872. [2023-04-02 07:17:12,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2872 states, 2077 states have (on average 1.2123254694270582) internal successors, (2518), 2140 states have internal predecessors, (2518), 521 states have call successors, (521), 247 states have call predecessors, (521), 273 states have return successors, (600), 522 states have call predecessors, (600), 517 states have call successors, (600) [2023-04-02 07:17:12,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2872 states to 2872 states and 3639 transitions. [2023-04-02 07:17:12,344 INFO L78 Accepts]: Start accepts. Automaton has 2872 states and 3639 transitions. Word has length 281 [2023-04-02 07:17:12,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:17:12,344 INFO L495 AbstractCegarLoop]: Abstraction has 2872 states and 3639 transitions. [2023-04-02 07:17:12,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (39), 4 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-02 07:17:12,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2872 states and 3639 transitions. [2023-04-02 07:17:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-04-02 07:17:12,346 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:17:12,346 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:12,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-04-02 07:17:12,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-04-02 07:17:12,547 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:17:12,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:17:12,547 INFO L85 PathProgramCache]: Analyzing trace with hash -744912841, now seen corresponding path program 1 times [2023-04-02 07:17:12,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:17:12,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078513443] [2023-04-02 07:17:12,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:12,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:17:12,618 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:17:12,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2120899503] [2023-04-02 07:17:12,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:12,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:17:12,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:17:12,629 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:17:12,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-04-02 07:17:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:13,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 3517 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 07:17:13,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:17:13,673 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-04-02 07:17:13,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:17:13,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:17:13,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078513443] [2023-04-02 07:17:13,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:17:13,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120899503] [2023-04-02 07:17:13,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120899503] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:17:13,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:17:13,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 07:17:13,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124361026] [2023-04-02 07:17:13,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:17:13,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 07:17:13,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:17:13,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 07:17:13,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:17:13,675 INFO L87 Difference]: Start difference. First operand 2872 states and 3639 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-02 07:17:14,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:17:14,999 INFO L93 Difference]: Finished difference Result 5203 states and 6646 transitions. [2023-04-02 07:17:14,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 07:17:14,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 280 [2023-04-02 07:17:15,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:17:15,008 INFO L225 Difference]: With dead ends: 5203 [2023-04-02 07:17:15,008 INFO L226 Difference]: Without dead ends: 2914 [2023-04-02 07:17:15,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 07:17:15,012 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 7 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:17:15,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1267 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:17:15,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2023-04-02 07:17:16,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2874. [2023-04-02 07:17:16,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2079 states have (on average 1.2121212121212122) internal successors, (2520), 2142 states have internal predecessors, (2520), 521 states have call successors, (521), 247 states have call predecessors, (521), 273 states have return successors, (600), 522 states have call predecessors, (600), 517 states have call successors, (600) [2023-04-02 07:17:16,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 3641 transitions. [2023-04-02 07:17:16,337 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 3641 transitions. Word has length 280 [2023-04-02 07:17:16,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:17:16,337 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 3641 transitions. [2023-04-02 07:17:16,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-02 07:17:16,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 3641 transitions. [2023-04-02 07:17:16,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-04-02 07:17:16,339 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:17:16,340 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:16,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-04-02 07:17:16,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-04-02 07:17:16,549 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:17:16,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:17:16,550 INFO L85 PathProgramCache]: Analyzing trace with hash -654138024, now seen corresponding path program 1 times [2023-04-02 07:17:16,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:17:16,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124450269] [2023-04-02 07:17:16,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:16,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:17:16,623 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:17:16,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025113685] [2023-04-02 07:17:16,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:16,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:17:16,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:17:16,625 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:17:16,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-04-02 07:17:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:17,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 3700 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-02 07:17:17,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:17:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-04-02 07:17:17,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:17:17,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:17:17,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124450269] [2023-04-02 07:17:17,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:17:17,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025113685] [2023-04-02 07:17:17,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025113685] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:17:17,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:17:17,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 07:17:17,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400445737] [2023-04-02 07:17:17,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:17:17,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:17:17,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:17:17,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:17:17,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:17:17,869 INFO L87 Difference]: Start difference. First operand 2874 states and 3641 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-02 07:17:19,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:17:19,240 INFO L93 Difference]: Finished difference Result 5103 states and 6494 transitions. [2023-04-02 07:17:19,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 07:17:19,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 288 [2023-04-02 07:17:19,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:17:19,247 INFO L225 Difference]: With dead ends: 5103 [2023-04-02 07:17:19,247 INFO L226 Difference]: Without dead ends: 2812 [2023-04-02 07:17:19,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 07:17:19,252 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 115 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 07:17:19,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2465 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 07:17:19,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2812 states. [2023-04-02 07:17:20,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2812 to 2784. [2023-04-02 07:17:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2016 states have (on average 1.2093253968253967) internal successors, (2438), 2072 states have internal predecessors, (2438), 500 states have call successors, (500), 242 states have call predecessors, (500), 267 states have return successors, (574), 502 states have call predecessors, (574), 496 states have call successors, (574) [2023-04-02 07:17:20,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3512 transitions. [2023-04-02 07:17:20,645 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3512 transitions. Word has length 288 [2023-04-02 07:17:20,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:17:20,645 INFO L495 AbstractCegarLoop]: Abstraction has 2784 states and 3512 transitions. [2023-04-02 07:17:20,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-02 07:17:20,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3512 transitions. [2023-04-02 07:17:20,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-04-02 07:17:20,647 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:17:20,648 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:20,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-04-02 07:17:20,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-04-02 07:17:20,848 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:17:20,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:17:20,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1178387358, now seen corresponding path program 1 times [2023-04-02 07:17:20,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:17:20,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326124274] [2023-04-02 07:17:20,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:20,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:17:20,925 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:17:20,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1927764353] [2023-04-02 07:17:20,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:20,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:17:20,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:17:20,927 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:17:20,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-04-02 07:17:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:22,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 3633 conjuncts, 23 conjunts are in the unsatisfiable core [2023-04-02 07:17:22,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:17:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-04-02 07:17:22,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 07:17:22,488 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-04-02 07:17:22,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:17:22,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326124274] [2023-04-02 07:17:22,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:17:22,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927764353] [2023-04-02 07:17:22,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927764353] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 07:17:22,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-04-02 07:17:22,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2023-04-02 07:17:22,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300386673] [2023-04-02 07:17:22,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-04-02 07:17:22,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 07:17:22,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:17:22,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 07:17:22,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-04-02 07:17:22,491 INFO L87 Difference]: Start difference. First operand 2784 states and 3512 transitions. Second operand has 13 states, 13 states have (on average 14.153846153846153) internal successors, (184), 10 states have internal predecessors, (184), 3 states have call successors, (54), 2 states have call predecessors, (54), 6 states have return successors, (53), 6 states have call predecessors, (53), 3 states have call successors, (53) [2023-04-02 07:17:24,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:17:24,684 INFO L93 Difference]: Finished difference Result 2874 states and 3621 transitions. [2023-04-02 07:17:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 07:17:24,685 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.153846153846153) internal successors, (184), 10 states have internal predecessors, (184), 3 states have call successors, (54), 2 states have call predecessors, (54), 6 states have return successors, (53), 6 states have call predecessors, (53), 3 states have call successors, (53) Word has length 305 [2023-04-02 07:17:24,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:17:24,690 INFO L225 Difference]: With dead ends: 2874 [2023-04-02 07:17:24,690 INFO L226 Difference]: Without dead ends: 2781 [2023-04-02 07:17:24,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-04-02 07:17:24,691 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 74 mSDsluCounter, 6311 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 6954 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 07:17:24,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 6954 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 07:17:24,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2023-04-02 07:17:25,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2772. [2023-04-02 07:17:25,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2772 states, 2011 states have (on average 1.2093485827946295) internal successors, (2432), 2067 states have internal predecessors, (2432), 494 states have call successors, (494), 242 states have call predecessors, (494), 266 states have return successors, (562), 495 states have call predecessors, (562), 490 states have call successors, (562) [2023-04-02 07:17:25,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2772 states to 2772 states and 3488 transitions. [2023-04-02 07:17:25,964 INFO L78 Accepts]: Start accepts. Automaton has 2772 states and 3488 transitions. Word has length 305 [2023-04-02 07:17:25,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:17:25,965 INFO L495 AbstractCegarLoop]: Abstraction has 2772 states and 3488 transitions. [2023-04-02 07:17:25,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.153846153846153) internal successors, (184), 10 states have internal predecessors, (184), 3 states have call successors, (54), 2 states have call predecessors, (54), 6 states have return successors, (53), 6 states have call predecessors, (53), 3 states have call successors, (53) [2023-04-02 07:17:25,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2772 states and 3488 transitions. [2023-04-02 07:17:25,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-04-02 07:17:25,967 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:17:25,967 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:25,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-04-02 07:17:26,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:17:26,169 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:17:26,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:17:26,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1713494521, now seen corresponding path program 1 times [2023-04-02 07:17:26,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:17:26,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186682319] [2023-04-02 07:17:26,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:26,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:17:26,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 07:17:26,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602876538] [2023-04-02 07:17:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:26,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:17:26,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:17:26,250 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:17:26,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-04-02 07:17:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:27,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 3633 conjuncts, 19 conjunts are in the unsatisfiable core [2023-04-02 07:17:27,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:17:27,440 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-04-02 07:17:27,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:17:27,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:17:27,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186682319] [2023-04-02 07:17:27,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 07:17:27,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602876538] [2023-04-02 07:17:27,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602876538] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:17:27,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:17:27,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 07:17:27,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911147792] [2023-04-02 07:17:27,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:17:27,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 07:17:27,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:17:27,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 07:17:27,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 07:17:27,443 INFO L87 Difference]: Start difference. First operand 2772 states and 3488 transitions. Second operand has 10 states, 10 states have (on average 16.6) internal successors, (166), 7 states have internal predecessors, (166), 2 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (43), 5 states have call predecessors, (43), 2 states have call successors, (43)