./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 79172d5077d4821f59ec3ee2d8a7cf5ca2cb3c5c1b82d4680e26c94b2b62bba2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:48:44,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:48:44,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:48:44,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:48:44,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:48:44,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:48:44,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:48:44,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:48:44,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:48:44,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:48:44,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:48:44,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:48:44,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:48:44,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:48:44,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:48:44,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:48:44,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:48:44,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:48:44,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:48:44,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:48:44,597 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:48:44,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:48:44,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:48:44,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:48:44,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:48:44,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:48:44,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:48:44,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:48:44,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:48:44,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:48:44,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:48:44,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:48:44,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:48:44,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:48:44,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:48:44,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:48:44,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:48:44,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:48:44,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:48:44,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:48:44,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:48:44,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:48:44,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:48:44,639 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:48:44,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:48:44,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:48:44,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:48:44,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:48:44,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:48:44,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:48:44,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:48:44,642 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:48:44,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:48:44,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:48:44,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:48:44,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:48:44,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:48:44,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:48:44,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:48:44,643 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:48:44,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:48:44,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:48:44,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:48:44,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:48:44,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:48:44,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:48:44,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:48:44,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:48:44,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:48:44,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:48:44,646 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:48:44,646 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:48:44,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:48:44,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79172d5077d4821f59ec3ee2d8a7cf5ca2cb3c5c1b82d4680e26c94b2b62bba2 [2022-07-14 00:48:44,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:48:44,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:48:44,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:48:44,833 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:48:44,833 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:48:44,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:48:44,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84645bbdc/a2f2b1735a274dada135a639c921834c/FLAGd17a0ff60 [2022-07-14 00:48:45,504 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:48:45,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:48:45,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84645bbdc/a2f2b1735a274dada135a639c921834c/FLAGd17a0ff60 [2022-07-14 00:48:45,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84645bbdc/a2f2b1735a274dada135a639c921834c [2022-07-14 00:48:45,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:48:45,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:48:45,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:48:45,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:48:45,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:48:45,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:48:45" (1/1) ... [2022-07-14 00:48:45,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d294fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:45, skipping insertion in model container [2022-07-14 00:48:45,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:48:45" (1/1) ... [2022-07-14 00:48:45,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:48:45,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:48:46,995 WARN L230 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-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[239738,239751] [2022-07-14 00:48:47,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:48:47,046 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:48:47,279 WARN L230 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-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[239738,239751] [2022-07-14 00:48:47,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:48:47,347 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:48:47,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47 WrapperNode [2022-07-14 00:48:47,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:48:47,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:48:47,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:48:47,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:48:47,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47" (1/1) ... [2022-07-14 00:48:47,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47" (1/1) ... [2022-07-14 00:48:47,601 INFO L137 Inliner]: procedures = 260, calls = 1808, calls flagged for inlining = 104, calls inlined = 100, statements flattened = 4669 [2022-07-14 00:48:47,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:48:47,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:48:47,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:48:47,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:48:47,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47" (1/1) ... [2022-07-14 00:48:47,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47" (1/1) ... [2022-07-14 00:48:47,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47" (1/1) ... [2022-07-14 00:48:47,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47" (1/1) ... [2022-07-14 00:48:47,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47" (1/1) ... [2022-07-14 00:48:47,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47" (1/1) ... [2022-07-14 00:48:47,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47" (1/1) ... [2022-07-14 00:48:47,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:48:47,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:48:47,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:48:47,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:48:47,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47" (1/1) ... [2022-07-14 00:48:47,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:48:47,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:48:48,009 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) [2022-07-14 00:48:48,090 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 [2022-07-14 00:48:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 00:48:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 00:48:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:48:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:48:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:48:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:48:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 00:48:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 00:48:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_delete [2022-07-14 00:48:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_delete [2022-07-14 00:48:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_11 [2022-07-14 00:48:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_11 [2022-07-14 00:48:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2022-07-14 00:48:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2022-07-14 00:48:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2022-07-14 00:48:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2022-07-14 00:48:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-14 00:48:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-14 00:48:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-07-14 00:48:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-07-14 00:48:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:48:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:48:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-14 00:48:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-14 00:48:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-14 00:48:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-14 00:48:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2022-07-14 00:48:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2022-07-14 00:48:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:48:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:48:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:48:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:48:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:48:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:48:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_49 [2022-07-14 00:48:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_49 [2022-07-14 00:48:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:48:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:48:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_detect_change [2022-07-14 00:48:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_detect_change [2022-07-14 00:48:48,102 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-14 00:48:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-14 00:48:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_cancel [2022-07-14 00:48:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_cancel [2022-07-14 00:48:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-14 00:48:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-14 00:48:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2022-07-14 00:48:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2022-07-14 00:48:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2022-07-14 00:48:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2022-07-14 00:48:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2022-07-14 00:48:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2022-07-14 00:48:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:48:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2022-07-14 00:48:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2022-07-14 00:48:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 00:48:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 00:48:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-14 00:48:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-14 00:48:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:48:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-07-14 00:48:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-07-14 00:48:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-14 00:48:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-14 00:48:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2022-07-14 00:48:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2022-07-14 00:48:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_disconnect [2022-07-14 00:48:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_disconnect [2022-07-14 00:48:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2022-07-14 00:48:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2022-07-14 00:48:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-07-14 00:48:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-07-14 00:48:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:48:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:48:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-14 00:48:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-14 00:48:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 00:48:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 00:48:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2022-07-14 00:48:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2022-07-14 00:48:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 00:48:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 00:48:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 00:48:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 00:48:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure add_offloaded_reg [2022-07-14 00:48:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure add_offloaded_reg [2022-07-14 00:48:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-14 00:48:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-14 00:48:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2022-07-14 00:48:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2022-07-14 00:48:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_to_multiple_of_64 [2022-07-14 00:48:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_to_multiple_of_64 [2022-07-14 00:48:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-14 00:48:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-14 00:48:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-14 00:48:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-14 00:48:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:48:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2022-07-14 00:48:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2022-07-14 00:48:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:48:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2022-07-14 00:48:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2022-07-14 00:48:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-14 00:48:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-14 00:48:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:48:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_6 [2022-07-14 00:48:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_6 [2022-07-14 00:48:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-14 00:48:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-14 00:48:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:48:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:48:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-14 00:48:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-14 00:48:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2022-07-14 00:48:48,118 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2022-07-14 00:48:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-14 00:48:48,118 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-14 00:48:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:48:48,118 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:48:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-14 00:48:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-14 00:48:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:48:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_response_error [2022-07-14 00:48:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_response_error [2022-07-14 00:48:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2022-07-14 00:48:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2022-07-14 00:48:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_free_host [2022-07-14 00:48:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_free_host [2022-07-14 00:48:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:48:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2022-07-14 00:48:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 00:48:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_6 [2022-07-14 00:48:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_6 [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_queue_poll_work [2022-07-14 00:48:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_queue_poll_work [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 00:48:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-14 00:48:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2022-07-14 00:48:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_to_buffer [2022-07-14 00:48:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_to_buffer [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_6 [2022-07-14 00:48:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_6 [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_8 [2022-07-14 00:48:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_8 [2022-07-14 00:48:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 00:48:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure __download_offload_pseudocode [2022-07-14 00:48:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __download_offload_pseudocode [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:48:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2022-07-14 00:48:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_InterfaceNumber [2022-07-14 00:48:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_InterfaceNumber [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-14 00:48:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-14 00:48:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-14 00:48:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2022-07-14 00:48:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-07-14 00:48:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure new_system_port_status [2022-07-14 00:48:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure new_system_port_status [2022-07-14 00:48:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_request_done [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_request_done [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_46 [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_46 [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-14 00:48:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_deadwork_thread [2022-07-14 00:48:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_deadwork_thread [2022-07-14 00:48:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure check_vub300_port_status [2022-07-14 00:48:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure check_vub300_port_status [2022-07-14 00:48:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-14 00:48:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:48:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:48:48,756 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:48:48,759 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:48:49,607 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:48:52,334 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:48:52,345 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:48:52,346 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 00:48:52,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:48:52 BoogieIcfgContainer [2022-07-14 00:48:52,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:48:52,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:48:52,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:48:52,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:48:52,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:48:45" (1/3) ... [2022-07-14 00:48:52,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531af5eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:48:52, skipping insertion in model container [2022-07-14 00:48:52,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:48:47" (2/3) ... [2022-07-14 00:48:52,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531af5eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:48:52, skipping insertion in model container [2022-07-14 00:48:52,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:48:52" (3/3) ... [2022-07-14 00:48:52,356 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:48:52,367 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:48:52,367 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:48:52,422 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:48:52,427 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2996013, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@f6934e4 [2022-07-14 00:48:52,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:48:52,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 1667 states, 1188 states have (on average 1.4267676767676767) internal successors, (1695), 1254 states have internal predecessors, (1695), 384 states have call successors, (384), 94 states have call predecessors, (384), 93 states have return successors, (375), 349 states have call predecessors, (375), 375 states have call successors, (375) [2022-07-14 00:48:52,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-14 00:48:52,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:48:52,450 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-14 00:48:52,451 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:48:52,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:48:52,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1823078644, now seen corresponding path program 1 times [2022-07-14 00:48:52,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:48:52,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173014536] [2022-07-14 00:48:52,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:48:52,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:48:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:52,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:48:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:52,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:52,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:52,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:48:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:52,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:48:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:48:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:48:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:48:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:53,120 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-14 00:48:53,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:48:53,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173014536] [2022-07-14 00:48:53,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173014536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:48:53,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:48:53,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:48:53,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454279573] [2022-07-14 00:48:53,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:48:53,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:48:53,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:48:53,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:48:53,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:48:53,159 INFO L87 Difference]: Start difference. First operand has 1667 states, 1188 states have (on average 1.4267676767676767) internal successors, (1695), 1254 states have internal predecessors, (1695), 384 states have call successors, (384), 94 states have call predecessors, (384), 93 states have return successors, (375), 349 states have call predecessors, (375), 375 states have call successors, (375) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:48:59,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:48:59,776 INFO L93 Difference]: Finished difference Result 3492 states and 5287 transitions. [2022-07-14 00:48:59,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 00:48:59,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2022-07-14 00:48:59,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:48:59,813 INFO L225 Difference]: With dead ends: 3492 [2022-07-14 00:48:59,813 INFO L226 Difference]: Without dead ends: 1813 [2022-07-14 00:48:59,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:48:59,833 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 1190 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 974 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 2609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 974 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:48:59,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 3935 Invalid, 2609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [974 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-07-14 00:48:59,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2022-07-14 00:48:59,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1651. [2022-07-14 00:48:59,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1183 states have (on average 1.3846153846153846) internal successors, (1638), 1238 states have internal predecessors, (1638), 375 states have call successors, (375), 93 states have call predecessors, (375), 92 states have return successors, (371), 345 states have call predecessors, (371), 371 states have call successors, (371) [2022-07-14 00:48:59,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2384 transitions. [2022-07-14 00:48:59,974 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2384 transitions. Word has length 114 [2022-07-14 00:48:59,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:48:59,974 INFO L495 AbstractCegarLoop]: Abstraction has 1651 states and 2384 transitions. [2022-07-14 00:48:59,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:48:59,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2384 transitions. [2022-07-14 00:48:59,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-14 00:48:59,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:48:59,982 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-14 00:48:59,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:48:59,982 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:48:59,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:48:59,983 INFO L85 PathProgramCache]: Analyzing trace with hash 271653140, now seen corresponding path program 1 times [2022-07-14 00:48:59,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:48:59,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543680034] [2022-07-14 00:48:59,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:48:59,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:49:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:49:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:49:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:49:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:49:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:49:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:49:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:00,404 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-14 00:49:00,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:49:00,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543680034] [2022-07-14 00:49:00,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543680034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:49:00,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:49:00,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:49:00,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703950271] [2022-07-14 00:49:00,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:49:00,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:49:00,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:49:00,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:49:00,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:49:00,407 INFO L87 Difference]: Start difference. First operand 1651 states and 2384 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:49:07,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:49:07,483 INFO L93 Difference]: Finished difference Result 5221 states and 7806 transitions. [2022-07-14 00:49:07,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:49:07,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2022-07-14 00:49:07,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:49:07,500 INFO L225 Difference]: With dead ends: 5221 [2022-07-14 00:49:07,500 INFO L226 Difference]: Without dead ends: 3593 [2022-07-14 00:49:07,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:49:07,508 INFO L413 NwaCegarLoop]: 2760 mSDtfsCounter, 5570 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 2366 mSolverCounterSat, 3140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5784 SdHoareTripleChecker+Valid, 5431 SdHoareTripleChecker+Invalid, 5506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3140 IncrementalHoareTripleChecker+Valid, 2366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:49:07,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5784 Valid, 5431 Invalid, 5506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3140 Valid, 2366 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-07-14 00:49:07,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2022-07-14 00:49:07,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 3300. [2022-07-14 00:49:07,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2365 states have (on average 1.3830866807610993) internal successors, (3271), 2475 states have internal predecessors, (3271), 742 states have call successors, (742), 184 states have call predecessors, (742), 192 states have return successors, (790), 694 states have call predecessors, (790), 738 states have call successors, (790) [2022-07-14 00:49:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4803 transitions. [2022-07-14 00:49:07,594 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4803 transitions. Word has length 114 [2022-07-14 00:49:07,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:49:07,595 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 4803 transitions. [2022-07-14 00:49:07,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:49:07,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4803 transitions. [2022-07-14 00:49:07,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-14 00:49:07,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:49:07,598 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-14 00:49:07,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:49:07,598 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:49:07,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:49:07,598 INFO L85 PathProgramCache]: Analyzing trace with hash -169226874, now seen corresponding path program 1 times [2022-07-14 00:49:07,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:49:07,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961582283] [2022-07-14 00:49:07,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:49:07,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:49:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:49:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:49:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:49:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:49:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:49:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:49:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-14 00:49:07,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:49:07,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961582283] [2022-07-14 00:49:07,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961582283] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:49:07,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:49:07,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:49:07,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904399622] [2022-07-14 00:49:07,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:49:07,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:49:07,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:49:07,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:49:07,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:49:07,830 INFO L87 Difference]: Start difference. First operand 3300 states and 4803 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:49:20,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:49:20,102 INFO L93 Difference]: Finished difference Result 10068 states and 15121 transitions. [2022-07-14 00:49:20,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:49:20,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2022-07-14 00:49:20,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:49:20,136 INFO L225 Difference]: With dead ends: 10068 [2022-07-14 00:49:20,137 INFO L226 Difference]: Without dead ends: 6791 [2022-07-14 00:49:20,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:49:20,152 INFO L413 NwaCegarLoop]: 2476 mSDtfsCounter, 4106 mSDsluCounter, 4116 mSDsCounter, 0 mSdLazyCounter, 4092 mSolverCounterSat, 2170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4283 SdHoareTripleChecker+Valid, 6592 SdHoareTripleChecker+Invalid, 6262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2170 IncrementalHoareTripleChecker+Valid, 4092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:49:20,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4283 Valid, 6592 Invalid, 6262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2170 Valid, 4092 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2022-07-14 00:49:20,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6791 states. [2022-07-14 00:49:20,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6791 to 6205. [2022-07-14 00:49:20,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 4454 states have (on average 1.388414907947912) internal successors, (6184), 4669 states have internal predecessors, (6184), 1383 states have call successors, (1383), 350 states have call predecessors, (1383), 367 states have return successors, (1481), 1291 states have call predecessors, (1481), 1379 states have call successors, (1481) [2022-07-14 00:49:20,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 9048 transitions. [2022-07-14 00:49:20,357 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 9048 transitions. Word has length 115 [2022-07-14 00:49:20,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:49:20,358 INFO L495 AbstractCegarLoop]: Abstraction has 6205 states and 9048 transitions. [2022-07-14 00:49:20,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:49:20,358 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 9048 transitions. [2022-07-14 00:49:20,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-14 00:49:20,361 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:49:20,361 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-14 00:49:20,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:49:20,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:49:20,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:49:20,362 INFO L85 PathProgramCache]: Analyzing trace with hash -951600553, now seen corresponding path program 1 times [2022-07-14 00:49:20,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:49:20,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134036273] [2022-07-14 00:49:20,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:49:20,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:49:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:49:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:49:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:49:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:49:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:49:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:49:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:20,565 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-14 00:49:20,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:49:20,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134036273] [2022-07-14 00:49:20,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134036273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:49:20,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:49:20,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:49:20,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093387751] [2022-07-14 00:49:20,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:49:20,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:49:20,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:49:20,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:49:20,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:49:20,567 INFO L87 Difference]: Start difference. First operand 6205 states and 9048 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:49:29,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:49:29,670 INFO L93 Difference]: Finished difference Result 6786 states and 10096 transitions. [2022-07-14 00:49:29,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:49:29,671 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 116 [2022-07-14 00:49:29,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:49:29,699 INFO L225 Difference]: With dead ends: 6786 [2022-07-14 00:49:29,700 INFO L226 Difference]: Without dead ends: 6783 [2022-07-14 00:49:29,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:49:29,704 INFO L413 NwaCegarLoop]: 2160 mSDtfsCounter, 3222 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 1307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3435 SdHoareTripleChecker+Valid, 4546 SdHoareTripleChecker+Invalid, 3675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1307 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:49:29,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3435 Valid, 4546 Invalid, 3675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1307 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-07-14 00:49:29,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6783 states. [2022-07-14 00:49:29,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6783 to 6204. [2022-07-14 00:49:29,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6204 states, 4454 states have (on average 1.3881903906600808) internal successors, (6183), 4668 states have internal predecessors, (6183), 1382 states have call successors, (1382), 350 states have call predecessors, (1382), 367 states have return successors, (1481), 1291 states have call predecessors, (1481), 1379 states have call successors, (1481) [2022-07-14 00:49:29,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6204 states to 6204 states and 9046 transitions. [2022-07-14 00:49:29,910 INFO L78 Accepts]: Start accepts. Automaton has 6204 states and 9046 transitions. Word has length 116 [2022-07-14 00:49:29,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:49:29,911 INFO L495 AbstractCegarLoop]: Abstraction has 6204 states and 9046 transitions. [2022-07-14 00:49:29,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:49:29,912 INFO L276 IsEmpty]: Start isEmpty. Operand 6204 states and 9046 transitions. [2022-07-14 00:49:29,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-14 00:49:29,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:49:29,914 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-14 00:49:29,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:49:29,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:49:29,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:49:29,915 INFO L85 PathProgramCache]: Analyzing trace with hash 564624041, now seen corresponding path program 1 times [2022-07-14 00:49:29,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:49:29,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819082039] [2022-07-14 00:49:29,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:49:29,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:49:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:49:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:49:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:49:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:49:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:49:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:49:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-14 00:49:30,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:49:30,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819082039] [2022-07-14 00:49:30,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819082039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:49:30,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:49:30,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:49:30,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638018382] [2022-07-14 00:49:30,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:49:30,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:49:30,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:49:30,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:49:30,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:49:30,169 INFO L87 Difference]: Start difference. First operand 6204 states and 9046 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:49:34,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:49:34,634 INFO L93 Difference]: Finished difference Result 6785 states and 10094 transitions. [2022-07-14 00:49:34,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:49:34,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 117 [2022-07-14 00:49:34,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:49:34,665 INFO L225 Difference]: With dead ends: 6785 [2022-07-14 00:49:34,666 INFO L226 Difference]: Without dead ends: 6753 [2022-07-14 00:49:34,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:49:34,672 INFO L413 NwaCegarLoop]: 2168 mSDtfsCounter, 3858 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 1813 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4073 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 2815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1813 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:49:34,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4073 Valid, 3066 Invalid, 2815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1813 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-07-14 00:49:34,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6753 states. [2022-07-14 00:49:34,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6753 to 6174. [2022-07-14 00:49:34,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6174 states, 4438 states have (on average 1.3886885984677784) internal successors, (6163), 4651 states have internal predecessors, (6163), 1369 states have call successors, (1369), 349 states have call predecessors, (1369), 366 states have return successors, (1469), 1279 states have call predecessors, (1469), 1367 states have call successors, (1469) [2022-07-14 00:49:34,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6174 states to 6174 states and 9001 transitions. [2022-07-14 00:49:34,908 INFO L78 Accepts]: Start accepts. Automaton has 6174 states and 9001 transitions. Word has length 117 [2022-07-14 00:49:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:49:34,909 INFO L495 AbstractCegarLoop]: Abstraction has 6174 states and 9001 transitions. [2022-07-14 00:49:34,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:49:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand 6174 states and 9001 transitions. [2022-07-14 00:49:34,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-14 00:49:34,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:49:34,923 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-14 00:49:34,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 00:49:34,923 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:49:34,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:49:34,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1181365168, now seen corresponding path program 1 times [2022-07-14 00:49:34,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:49:34,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243025170] [2022-07-14 00:49:34,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:49:34,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:49:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:49:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:49:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:49:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:49:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:49:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:49:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:49:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:49:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-14 00:49:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 00:49:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:49:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 00:49:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-07-14 00:49:35,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:49:35,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243025170] [2022-07-14 00:49:35,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243025170] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:49:35,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:49:35,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:49:35,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169887981] [2022-07-14 00:49:35,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:49:35,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:49:35,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:49:35,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:49:35,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:49:35,149 INFO L87 Difference]: Start difference. First operand 6174 states and 9001 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 7 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 00:49:47,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:49:47,952 INFO L93 Difference]: Finished difference Result 21066 states and 31770 transitions. [2022-07-14 00:49:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 00:49:47,952 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 7 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2022-07-14 00:49:47,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:49:48,021 INFO L225 Difference]: With dead ends: 21066 [2022-07-14 00:49:48,021 INFO L226 Difference]: Without dead ends: 14915 [2022-07-14 00:49:48,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:49:48,053 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 7729 mSDsluCounter, 4805 mSDsCounter, 0 mSdLazyCounter, 6285 mSolverCounterSat, 5842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8049 SdHoareTripleChecker+Valid, 7216 SdHoareTripleChecker+Invalid, 12127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5842 IncrementalHoareTripleChecker+Valid, 6285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:49:48,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8049 Valid, 7216 Invalid, 12127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5842 Valid, 6285 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-07-14 00:49:48,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14915 states. [2022-07-14 00:49:48,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14915 to 13230. [2022-07-14 00:49:48,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13230 states, 9406 states have (on average 1.381990219009143) internal successors, (12999), 9917 states have internal predecessors, (12999), 2943 states have call successors, (2943), 677 states have call predecessors, (2943), 880 states have return successors, (3810), 2917 states have call predecessors, (3810), 2941 states have call successors, (3810) [2022-07-14 00:49:48,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13230 states to 13230 states and 19752 transitions. [2022-07-14 00:49:48,584 INFO L78 Accepts]: Start accepts. Automaton has 13230 states and 19752 transitions. Word has length 169 [2022-07-14 00:49:48,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:49:48,584 INFO L495 AbstractCegarLoop]: Abstraction has 13230 states and 19752 transitions. [2022-07-14 00:49:48,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 7 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 00:49:48,585 INFO L276 IsEmpty]: Start isEmpty. Operand 13230 states and 19752 transitions. [2022-07-14 00:49:48,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-14 00:49:48,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:49:48,600 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:49:48,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 00:49:48,600 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:49:48,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:49:48,601 INFO L85 PathProgramCache]: Analyzing trace with hash -84553889, now seen corresponding path program 1 times [2022-07-14 00:49:48,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:49:48,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028269791] [2022-07-14 00:49:48,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:49:48,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:49:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:49:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:49:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:49:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:49:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:49:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:49:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:49:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-14 00:49:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-14 00:49:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-14 00:49:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-14 00:49:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 00:49:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 00:49:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:48,892 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-14 00:49:48,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:49:48,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028269791] [2022-07-14 00:49:48,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028269791] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:49:48,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:49:48,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 00:49:48,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69140528] [2022-07-14 00:49:48,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:49:48,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 00:49:48,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:49:48,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 00:49:48,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:49:48,894 INFO L87 Difference]: Start difference. First operand 13230 states and 19752 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 00:49:57,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:49:57,048 INFO L93 Difference]: Finished difference Result 30611 states and 46856 transitions. [2022-07-14 00:49:57,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 00:49:57,049 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 208 [2022-07-14 00:49:57,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:49:57,123 INFO L225 Difference]: With dead ends: 30611 [2022-07-14 00:49:57,123 INFO L226 Difference]: Without dead ends: 17404 [2022-07-14 00:49:57,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:49:57,176 INFO L413 NwaCegarLoop]: 2485 mSDtfsCounter, 6682 mSDsluCounter, 4692 mSDsCounter, 0 mSdLazyCounter, 4083 mSolverCounterSat, 5068 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6948 SdHoareTripleChecker+Valid, 7177 SdHoareTripleChecker+Invalid, 9151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5068 IncrementalHoareTripleChecker+Valid, 4083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:49:57,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6948 Valid, 7177 Invalid, 9151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5068 Valid, 4083 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-07-14 00:49:57,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17404 states. [2022-07-14 00:49:57,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17404 to 13244. [2022-07-14 00:49:57,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13244 states, 9420 states have (on average 1.3814225053078557) internal successors, (13013), 9931 states have internal predecessors, (13013), 2943 states have call successors, (2943), 677 states have call predecessors, (2943), 880 states have return successors, (3810), 2917 states have call predecessors, (3810), 2941 states have call successors, (3810) [2022-07-14 00:49:57,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13244 states to 13244 states and 19766 transitions. [2022-07-14 00:49:57,673 INFO L78 Accepts]: Start accepts. Automaton has 13244 states and 19766 transitions. Word has length 208 [2022-07-14 00:49:57,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:49:57,747 INFO L495 AbstractCegarLoop]: Abstraction has 13244 states and 19766 transitions. [2022-07-14 00:49:57,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 00:49:57,748 INFO L276 IsEmpty]: Start isEmpty. Operand 13244 states and 19766 transitions. [2022-07-14 00:49:57,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-14 00:49:57,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:49:57,763 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-07-14 00:49:57,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 00:49:57,763 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:49:57,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:49:57,764 INFO L85 PathProgramCache]: Analyzing trace with hash -956826414, now seen corresponding path program 1 times [2022-07-14 00:49:57,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:49:57,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331109482] [2022-07-14 00:49:57,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:49:57,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:49:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:49:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:49:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:49:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:49:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:49:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:49:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:49:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-14 00:49:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:49:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:58,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 00:49:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-14 00:49:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-14 00:49:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-14 00:49:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:58,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:49:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:58,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:49:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:49:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:58,042 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-07-14 00:49:58,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:49:58,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331109482] [2022-07-14 00:49:58,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331109482] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:49:58,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:49:58,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:49:58,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329294295] [2022-07-14 00:49:58,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:49:58,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:49:58,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:49:58,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:49:58,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:49:58,044 INFO L87 Difference]: Start difference. First operand 13244 states and 19766 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 00:50:14,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:50:14,518 INFO L93 Difference]: Finished difference Result 42485 states and 64402 transitions. [2022-07-14 00:50:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 00:50:14,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 225 [2022-07-14 00:50:14,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:50:14,643 INFO L225 Difference]: With dead ends: 42485 [2022-07-14 00:50:14,644 INFO L226 Difference]: Without dead ends: 29264 [2022-07-14 00:50:14,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:50:14,821 INFO L413 NwaCegarLoop]: 3691 mSDtfsCounter, 5286 mSDsluCounter, 6305 mSDsCounter, 0 mSdLazyCounter, 7359 mSolverCounterSat, 4435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5644 SdHoareTripleChecker+Valid, 9996 SdHoareTripleChecker+Invalid, 11794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4435 IncrementalHoareTripleChecker+Valid, 7359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:50:14,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5644 Valid, 9996 Invalid, 11794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4435 Valid, 7359 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2022-07-14 00:50:14,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29264 states. [2022-07-14 00:50:15,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29264 to 26011. [2022-07-14 00:50:15,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26011 states, 18532 states have (on average 1.3824195985322685) internal successors, (25619), 19533 states have internal predecessors, (25619), 5743 states have call successors, (5743), 1328 states have call predecessors, (5743), 1735 states have return successors, (7471), 5693 states have call predecessors, (7471), 5741 states have call successors, (7471) [2022-07-14 00:50:15,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26011 states to 26011 states and 38833 transitions. [2022-07-14 00:50:15,734 INFO L78 Accepts]: Start accepts. Automaton has 26011 states and 38833 transitions. Word has length 225 [2022-07-14 00:50:15,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:50:15,736 INFO L495 AbstractCegarLoop]: Abstraction has 26011 states and 38833 transitions. [2022-07-14 00:50:15,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 00:50:15,736 INFO L276 IsEmpty]: Start isEmpty. Operand 26011 states and 38833 transitions. [2022-07-14 00:50:15,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-14 00:50:15,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:50:15,774 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2022-07-14 00:50:15,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 00:50:15,774 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:50:15,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:50:15,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1956762074, now seen corresponding path program 1 times [2022-07-14 00:50:15,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:50:15,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605830400] [2022-07-14 00:50:15,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:50:15,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:50:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:50:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:50:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:50:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:50:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:50:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:50:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:50:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:15,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-14 00:50:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-14 00:50:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 00:50:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:50:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 00:50:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 00:50:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:50:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:50:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 00:50:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 00:50:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-14 00:50:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:50:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:16,212 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-07-14 00:50:16,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:50:16,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605830400] [2022-07-14 00:50:16,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605830400] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:50:16,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:50:16,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 00:50:16,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479852197] [2022-07-14 00:50:16,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:50:16,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:50:16,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:50:16,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:50:16,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:50:16,215 INFO L87 Difference]: Start difference. First operand 26011 states and 38833 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-14 00:50:34,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:50:34,228 INFO L93 Difference]: Finished difference Result 44427 states and 66859 transitions. [2022-07-14 00:50:34,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 00:50:34,228 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 251 [2022-07-14 00:50:34,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:50:34,450 INFO L225 Difference]: With dead ends: 44427 [2022-07-14 00:50:34,451 INFO L226 Difference]: Without dead ends: 18222 [2022-07-14 00:50:34,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:50:34,549 INFO L413 NwaCegarLoop]: 2111 mSDtfsCounter, 2022 mSDsluCounter, 7511 mSDsCounter, 0 mSdLazyCounter, 10058 mSolverCounterSat, 1635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2163 SdHoareTripleChecker+Valid, 9622 SdHoareTripleChecker+Invalid, 11693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1635 IncrementalHoareTripleChecker+Valid, 10058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:50:34,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2163 Valid, 9622 Invalid, 11693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1635 Valid, 10058 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2022-07-14 00:50:34,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18222 states. [2022-07-14 00:50:35,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18222 to 16129. [2022-07-14 00:50:35,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16129 states, 11481 states have (on average 1.3800191620938942) internal successors, (15844), 12103 states have internal predecessors, (15844), 3559 states have call successors, (3559), 834 states have call predecessors, (3559), 1088 states have return successors, (4632), 3525 states have call predecessors, (4632), 3557 states have call successors, (4632) [2022-07-14 00:50:35,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16129 states to 16129 states and 24035 transitions. [2022-07-14 00:50:35,638 INFO L78 Accepts]: Start accepts. Automaton has 16129 states and 24035 transitions. Word has length 251 [2022-07-14 00:50:35,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:50:35,639 INFO L495 AbstractCegarLoop]: Abstraction has 16129 states and 24035 transitions. [2022-07-14 00:50:35,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-14 00:50:35,639 INFO L276 IsEmpty]: Start isEmpty. Operand 16129 states and 24035 transitions. [2022-07-14 00:50:35,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-14 00:50:35,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:50:35,691 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2022-07-14 00:50:35,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 00:50:35,692 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:50:35,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:50:35,693 INFO L85 PathProgramCache]: Analyzing trace with hash 986429778, now seen corresponding path program 1 times [2022-07-14 00:50:35,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:50:35,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200863693] [2022-07-14 00:50:35,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:50:35,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:50:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:50:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:50:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:50:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:50:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:50:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:50:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:35,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:50:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:50:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:50:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:50:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:50:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 00:50:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:50:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 00:50:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 00:50:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:50:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:50:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 00:50:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 00:50:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 00:50:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 00:50:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:50:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 00:50:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 00:50:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:36,291 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-14 00:50:36,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:50:36,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200863693] [2022-07-14 00:50:36,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200863693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:50:36,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:50:36,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 00:50:36,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129815367] [2022-07-14 00:50:36,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:50:36,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 00:50:36,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:50:36,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 00:50:36,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:50:36,294 INFO L87 Difference]: Start difference. First operand 16129 states and 24035 transitions. Second operand has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-14 00:50:46,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:50:46,764 INFO L93 Difference]: Finished difference Result 34384 states and 51842 transitions. [2022-07-14 00:50:46,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:50:46,764 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 289 [2022-07-14 00:50:46,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:50:46,839 INFO L225 Difference]: With dead ends: 34384 [2022-07-14 00:50:46,840 INFO L226 Difference]: Without dead ends: 18288 [2022-07-14 00:50:46,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-14 00:50:46,878 INFO L413 NwaCegarLoop]: 1996 mSDtfsCounter, 6360 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 4082 mSolverCounterSat, 4300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6633 SdHoareTripleChecker+Valid, 4967 SdHoareTripleChecker+Invalid, 8382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4300 IncrementalHoareTripleChecker+Valid, 4082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:50:46,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6633 Valid, 4967 Invalid, 8382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4300 Valid, 4082 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-07-14 00:50:46,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18288 states. [2022-07-14 00:50:47,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18288 to 16109. [2022-07-14 00:50:47,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16109 states, 11471 states have (on average 1.3794786853805248) internal successors, (15824), 12093 states have internal predecessors, (15824), 3549 states have call successors, (3549), 834 states have call predecessors, (3549), 1088 states have return successors, (4602), 3515 states have call predecessors, (4602), 3547 states have call successors, (4602) [2022-07-14 00:50:47,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16109 states to 16109 states and 23975 transitions. [2022-07-14 00:50:47,908 INFO L78 Accepts]: Start accepts. Automaton has 16109 states and 23975 transitions. Word has length 289 [2022-07-14 00:50:47,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:50:47,909 INFO L495 AbstractCegarLoop]: Abstraction has 16109 states and 23975 transitions. [2022-07-14 00:50:47,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-14 00:50:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 16109 states and 23975 transitions. [2022-07-14 00:50:47,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-14 00:50:47,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:50:47,936 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1] [2022-07-14 00:50:47,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 00:50:47,937 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:50:47,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:50:47,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1825100178, now seen corresponding path program 1 times [2022-07-14 00:50:47,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:50:47,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753259269] [2022-07-14 00:50:47,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:50:47,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:50:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:50:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:50:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:50:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:50:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:50:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:50:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-14 00:50:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:50:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:50:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:50:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:50:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 00:50:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:50:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 00:50:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 00:50:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:50:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:50:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 00:50:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 00:50:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 00:50:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 00:50:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:50:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:50:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:50:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 00:50:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 00:50:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:48,401 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-14 00:50:48,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:50:48,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753259269] [2022-07-14 00:50:48,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753259269] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:50:48,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:50:48,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 00:50:48,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547060392] [2022-07-14 00:50:48,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:50:48,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 00:50:48,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:50:48,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 00:50:48,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:50:48,404 INFO L87 Difference]: Start difference. First operand 16109 states and 23975 transitions. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-14 00:51:04,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:51:04,009 INFO L93 Difference]: Finished difference Result 34344 states and 51717 transitions. [2022-07-14 00:51:04,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:51:04,010 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 288 [2022-07-14 00:51:04,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:51:04,140 INFO L225 Difference]: With dead ends: 34344 [2022-07-14 00:51:04,140 INFO L226 Difference]: Without dead ends: 18268 [2022-07-14 00:51:04,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-14 00:51:04,187 INFO L413 NwaCegarLoop]: 1985 mSDtfsCounter, 5814 mSDsluCounter, 4274 mSDsCounter, 0 mSdLazyCounter, 6070 mSolverCounterSat, 4111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6089 SdHoareTripleChecker+Valid, 6259 SdHoareTripleChecker+Invalid, 10181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4111 IncrementalHoareTripleChecker+Valid, 6070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:51:04,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6089 Valid, 6259 Invalid, 10181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4111 Valid, 6070 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time] [2022-07-14 00:51:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18268 states. [2022-07-14 00:51:05,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18268 to 16089. [2022-07-14 00:51:05,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16089 states, 11461 states have (on average 1.3789372655091179) internal successors, (15804), 12083 states have internal predecessors, (15804), 3539 states have call successors, (3539), 834 states have call predecessors, (3539), 1088 states have return successors, (4572), 3505 states have call predecessors, (4572), 3537 states have call successors, (4572) [2022-07-14 00:51:05,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16089 states to 16089 states and 23915 transitions. [2022-07-14 00:51:05,115 INFO L78 Accepts]: Start accepts. Automaton has 16089 states and 23915 transitions. Word has length 288 [2022-07-14 00:51:05,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:51:05,115 INFO L495 AbstractCegarLoop]: Abstraction has 16089 states and 23915 transitions. [2022-07-14 00:51:05,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-14 00:51:05,116 INFO L276 IsEmpty]: Start isEmpty. Operand 16089 states and 23915 transitions. [2022-07-14 00:51:05,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-07-14 00:51:05,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:51:05,144 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-07-14 00:51:05,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 00:51:05,145 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:51:05,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:51:05,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1002229883, now seen corresponding path program 1 times [2022-07-14 00:51:05,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:51:05,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958334350] [2022-07-14 00:51:05,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:51:05,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:51:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:51:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:51:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:51:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:51:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:51:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:51:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 00:51:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:51:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:51:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:51:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:51:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 00:51:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:51:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 00:51:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 00:51:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:51:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:51:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 00:51:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 00:51:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 00:51:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 00:51:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:51:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 00:51:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 00:51:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-14 00:51:05,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:51:05,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958334350] [2022-07-14 00:51:05,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958334350] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:51:05,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:51:05,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 00:51:05,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091627279] [2022-07-14 00:51:05,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:51:05,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 00:51:05,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:51:05,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 00:51:05,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:51:05,627 INFO L87 Difference]: Start difference. First operand 16089 states and 23915 transitions. Second operand has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-14 00:51:15,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:51:15,764 INFO L93 Difference]: Finished difference Result 34304 states and 51592 transitions. [2022-07-14 00:51:15,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:51:15,764 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 291 [2022-07-14 00:51:15,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:51:15,836 INFO L225 Difference]: With dead ends: 34304 [2022-07-14 00:51:15,836 INFO L226 Difference]: Without dead ends: 18248 [2022-07-14 00:51:15,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-14 00:51:15,884 INFO L413 NwaCegarLoop]: 1995 mSDtfsCounter, 4891 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 4246 mSolverCounterSat, 3060 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5151 SdHoareTripleChecker+Valid, 5002 SdHoareTripleChecker+Invalid, 7306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3060 IncrementalHoareTripleChecker+Valid, 4246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:51:15,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5151 Valid, 5002 Invalid, 7306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3060 Valid, 4246 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-07-14 00:51:15,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18248 states. [2022-07-14 00:51:16,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18248 to 16069. [2022-07-14 00:51:16,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16069 states, 11451 states have (on average 1.3783949000087328) internal successors, (15784), 12073 states have internal predecessors, (15784), 3529 states have call successors, (3529), 834 states have call predecessors, (3529), 1088 states have return successors, (4542), 3495 states have call predecessors, (4542), 3527 states have call successors, (4542) [2022-07-14 00:51:16,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16069 states to 16069 states and 23855 transitions. [2022-07-14 00:51:16,788 INFO L78 Accepts]: Start accepts. Automaton has 16069 states and 23855 transitions. Word has length 291 [2022-07-14 00:51:16,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:51:16,789 INFO L495 AbstractCegarLoop]: Abstraction has 16069 states and 23855 transitions. [2022-07-14 00:51:16,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-14 00:51:16,789 INFO L276 IsEmpty]: Start isEmpty. Operand 16069 states and 23855 transitions. [2022-07-14 00:51:16,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-14 00:51:16,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:51:16,815 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2022-07-14 00:51:16,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 00:51:16,815 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:51:16,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:51:16,816 INFO L85 PathProgramCache]: Analyzing trace with hash -857816255, now seen corresponding path program 1 times [2022-07-14 00:51:16,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:51:16,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921672362] [2022-07-14 00:51:16,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:51:16,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:51:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:51:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:51:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:51:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:51:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:51:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:51:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:16,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 00:51:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:51:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:51:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:51:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:51:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 00:51:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:51:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 00:51:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 00:51:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:51:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:51:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 00:51:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 00:51:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 00:51:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 00:51:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:51:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 00:51:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 00:51:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:17,221 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-14 00:51:17,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:51:17,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921672362] [2022-07-14 00:51:17,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921672362] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:51:17,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:51:17,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 00:51:17,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860031338] [2022-07-14 00:51:17,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:51:17,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 00:51:17,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:51:17,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 00:51:17,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:51:17,222 INFO L87 Difference]: Start difference. First operand 16069 states and 23855 transitions. Second operand has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-14 00:51:19,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:51:27,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:51:27,974 INFO L93 Difference]: Finished difference Result 34264 states and 51467 transitions. [2022-07-14 00:51:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:51:27,977 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 290 [2022-07-14 00:51:27,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:51:28,038 INFO L225 Difference]: With dead ends: 34264 [2022-07-14 00:51:28,038 INFO L226 Difference]: Without dead ends: 18228 [2022-07-14 00:51:28,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-14 00:51:28,074 INFO L413 NwaCegarLoop]: 2026 mSDtfsCounter, 5921 mSDsluCounter, 3647 mSDsCounter, 0 mSdLazyCounter, 5538 mSolverCounterSat, 4147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6184 SdHoareTripleChecker+Valid, 5673 SdHoareTripleChecker+Invalid, 9685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4147 IncrementalHoareTripleChecker+Valid, 5538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:51:28,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6184 Valid, 5673 Invalid, 9685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4147 Valid, 5538 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-07-14 00:51:28,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18228 states. [2022-07-14 00:51:29,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18228 to 16049. [2022-07-14 00:51:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16049 states, 11441 states have (on average 1.3778515863997902) internal successors, (15764), 12063 states have internal predecessors, (15764), 3519 states have call successors, (3519), 834 states have call predecessors, (3519), 1088 states have return successors, (4512), 3485 states have call predecessors, (4512), 3517 states have call successors, (4512) [2022-07-14 00:51:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16049 states to 16049 states and 23795 transitions. [2022-07-14 00:51:29,198 INFO L78 Accepts]: Start accepts. Automaton has 16049 states and 23795 transitions. Word has length 290 [2022-07-14 00:51:29,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:51:29,199 INFO L495 AbstractCegarLoop]: Abstraction has 16049 states and 23795 transitions. [2022-07-14 00:51:29,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-14 00:51:29,199 INFO L276 IsEmpty]: Start isEmpty. Operand 16049 states and 23795 transitions. [2022-07-14 00:51:29,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-14 00:51:29,217 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:51:29,217 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:51:29,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 00:51:29,218 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:51:29,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:51:29,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1611561580, now seen corresponding path program 1 times [2022-07-14 00:51:29,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:51:29,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707280596] [2022-07-14 00:51:29,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:51:29,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:51:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:51:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:51:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:51:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:51:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:51:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:51:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:51:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-14 00:51:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 00:51:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-14 00:51:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-14 00:51:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-14 00:51:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:51:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:51:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-14 00:51:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-14 00:51:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-14 00:51:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-14 00:51:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-14 00:51:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:51:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 00:51:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-14 00:51:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-07-14 00:51:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 00:51:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-14 00:51:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-14 00:51:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-07-14 00:51:29,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:51:29,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707280596] [2022-07-14 00:51:29,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707280596] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:51:29,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470897707] [2022-07-14 00:51:29,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:51:29,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:51:29,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:51:29,675 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) [2022-07-14 00:51:29,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 00:51:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:30,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 2903 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:51:30,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:51:30,556 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-07-14 00:51:30,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:51:30,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470897707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:51:30,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:51:30,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-07-14 00:51:30,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519103056] [2022-07-14 00:51:30,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:51:30,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:51:30,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:51:30,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:51:30,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:51:30,558 INFO L87 Difference]: Start difference. First operand 16049 states and 23795 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 00:51:32,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:51:32,128 INFO L93 Difference]: Finished difference Result 29251 states and 43417 transitions. [2022-07-14 00:51:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:51:32,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 300 [2022-07-14 00:51:32,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:51:32,204 INFO L225 Difference]: With dead ends: 29251 [2022-07-14 00:51:32,204 INFO L226 Difference]: Without dead ends: 22672 [2022-07-14 00:51:32,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-07-14 00:51:32,231 INFO L413 NwaCegarLoop]: 4490 mSDtfsCounter, 2978 mSDsluCounter, 10470 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 14960 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:51:32,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 14960 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 00:51:32,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22672 states. [2022-07-14 00:51:33,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22672 to 16073. [2022-07-14 00:51:33,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16073 states, 11455 states have (on average 1.3773897861195985) internal successors, (15778), 12079 states have internal predecessors, (15778), 3529 states have call successors, (3529), 834 states have call predecessors, (3529), 1088 states have return successors, (4524), 3495 states have call predecessors, (4524), 3527 states have call successors, (4524) [2022-07-14 00:51:33,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16073 states to 16073 states and 23831 transitions. [2022-07-14 00:51:33,229 INFO L78 Accepts]: Start accepts. Automaton has 16073 states and 23831 transitions. Word has length 300 [2022-07-14 00:51:33,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:51:33,230 INFO L495 AbstractCegarLoop]: Abstraction has 16073 states and 23831 transitions. [2022-07-14 00:51:33,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 00:51:33,230 INFO L276 IsEmpty]: Start isEmpty. Operand 16073 states and 23831 transitions. [2022-07-14 00:51:33,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-14 00:51:33,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:51:33,246 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:51:33,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-14 00:51:33,464 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,SelfDestructingSolverStorable13 [2022-07-14 00:51:33,465 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:51:33,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:51:33,465 INFO L85 PathProgramCache]: Analyzing trace with hash -294841686, now seen corresponding path program 1 times [2022-07-14 00:51:33,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:51:33,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391229548] [2022-07-14 00:51:33,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:51:33,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:51:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:51:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:51:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:51:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:51:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:51:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:51:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:51:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-14 00:51:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 00:51:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-14 00:51:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-14 00:51:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-14 00:51:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:51:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:51:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-14 00:51:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-14 00:51:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-14 00:51:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-14 00:51:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-14 00:51:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:51:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 00:51:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-14 00:51:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-07-14 00:51:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 00:51:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-14 00:51:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-14 00:51:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-07-14 00:51:33,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:51:33,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391229548] [2022-07-14 00:51:33,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391229548] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:51:33,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004417600] [2022-07-14 00:51:33,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:51:33,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:51:33,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:51:33,978 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) [2022-07-14 00:51:33,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 00:51:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:34,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 2898 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 00:51:34,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:51:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-07-14 00:51:34,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:51:34,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004417600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:51:34,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:51:34,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-07-14 00:51:34,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921894324] [2022-07-14 00:51:34,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:51:34,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:51:34,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:51:34,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:51:34,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:51:34,894 INFO L87 Difference]: Start difference. First operand 16073 states and 23831 transitions. Second operand has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-14 00:51:35,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:51:35,809 INFO L93 Difference]: Finished difference Result 32157 states and 47710 transitions. [2022-07-14 00:51:35,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:51:35,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 300 [2022-07-14 00:51:35,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:51:35,877 INFO L225 Difference]: With dead ends: 32157 [2022-07-14 00:51:35,878 INFO L226 Difference]: Without dead ends: 16103 [2022-07-14 00:51:35,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-14 00:51:35,925 INFO L413 NwaCegarLoop]: 2353 mSDtfsCounter, 6 mSDsluCounter, 9395 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11748 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:51:35,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11748 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:51:35,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16103 states. [2022-07-14 00:51:37,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16103 to 16076. [2022-07-14 00:51:37,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16076 states, 11457 states have (on average 1.3774111896657066) internal successors, (15781), 12082 states have internal predecessors, (15781), 3529 states have call successors, (3529), 834 states have call predecessors, (3529), 1089 states have return successors, (4528), 3495 states have call predecessors, (4528), 3527 states have call successors, (4528) [2022-07-14 00:51:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16076 states to 16076 states and 23838 transitions. [2022-07-14 00:51:37,208 INFO L78 Accepts]: Start accepts. Automaton has 16076 states and 23838 transitions. Word has length 300 [2022-07-14 00:51:37,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:51:37,208 INFO L495 AbstractCegarLoop]: Abstraction has 16076 states and 23838 transitions. [2022-07-14 00:51:37,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-14 00:51:37,209 INFO L276 IsEmpty]: Start isEmpty. Operand 16076 states and 23838 transitions. [2022-07-14 00:51:37,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-14 00:51:37,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:51:37,224 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-07-14 00:51:37,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-14 00:51:37,439 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,SelfDestructingSolverStorable14 [2022-07-14 00:51:37,440 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:51:37,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:51:37,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1195677722, now seen corresponding path program 1 times [2022-07-14 00:51:37,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:51:37,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194291832] [2022-07-14 00:51:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:51:37,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:51:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:51:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:51:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:51:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:51:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:51:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 00:51:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-14 00:51:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 00:51:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 00:51:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 00:51:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 00:51:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 00:51:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-14 00:51:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-14 00:51:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 00:51:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 00:51:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-14 00:51:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-14 00:51:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-14 00:51:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-14 00:51:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 00:51:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-14 00:51:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-14 00:51:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-14 00:51:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 00:51:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-14 00:51:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2022-07-14 00:51:37,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:51:37,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194291832] [2022-07-14 00:51:37,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194291832] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:51:37,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960731446] [2022-07-14 00:51:37,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:51:37,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:51:37,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:51:37,864 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) [2022-07-14 00:51:37,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 00:51:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:38,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 00:51:38,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:51:38,853 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 124 proven. 1 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-07-14 00:51:38,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:51:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2022-07-14 00:51:39,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960731446] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:51:39,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:51:39,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 20 [2022-07-14 00:51:39,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930501905] [2022-07-14 00:51:39,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:51:39,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-14 00:51:39,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:51:39,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-14 00:51:39,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-07-14 00:51:39,152 INFO L87 Difference]: Start difference. First operand 16076 states and 23838 transitions. Second operand has 20 states, 18 states have (on average 11.444444444444445) internal successors, (206), 13 states have internal predecessors, (206), 4 states have call successors, (78), 8 states have call predecessors, (78), 6 states have return successors, (63), 5 states have call predecessors, (63), 4 states have call successors, (63) [2022-07-14 00:51:56,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:51:56,261 INFO L93 Difference]: Finished difference Result 34260 states and 51459 transitions. [2022-07-14 00:51:56,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-14 00:51:56,265 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 11.444444444444445) internal successors, (206), 13 states have internal predecessors, (206), 4 states have call successors, (78), 8 states have call predecessors, (78), 6 states have return successors, (63), 5 states have call predecessors, (63), 4 states have call successors, (63) Word has length 302 [2022-07-14 00:51:56,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:51:56,332 INFO L225 Difference]: With dead ends: 34260 [2022-07-14 00:51:56,332 INFO L226 Difference]: Without dead ends: 18203 [2022-07-14 00:51:56,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 673 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=876, Unknown=0, NotChecked=0, Total=1056 [2022-07-14 00:51:56,370 INFO L413 NwaCegarLoop]: 2149 mSDtfsCounter, 3285 mSDsluCounter, 10744 mSDsCounter, 0 mSdLazyCounter, 13099 mSolverCounterSat, 2807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3430 SdHoareTripleChecker+Valid, 12893 SdHoareTripleChecker+Invalid, 15906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2807 IncrementalHoareTripleChecker+Valid, 13099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:51:56,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3430 Valid, 12893 Invalid, 15906 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2807 Valid, 13099 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2022-07-14 00:51:56,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18203 states. [2022-07-14 00:51:57,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18203 to 16089. [2022-07-14 00:51:57,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16089 states, 11468 states have (on average 1.377136379490757) internal successors, (15793), 12091 states have internal predecessors, (15793), 3529 states have call successors, (3529), 834 states have call predecessors, (3529), 1091 states have return successors, (4537), 3499 states have call predecessors, (4537), 3527 states have call successors, (4537) [2022-07-14 00:51:57,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16089 states to 16089 states and 23859 transitions. [2022-07-14 00:51:57,472 INFO L78 Accepts]: Start accepts. Automaton has 16089 states and 23859 transitions. Word has length 302 [2022-07-14 00:51:57,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:51:57,472 INFO L495 AbstractCegarLoop]: Abstraction has 16089 states and 23859 transitions. [2022-07-14 00:51:57,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 11.444444444444445) internal successors, (206), 13 states have internal predecessors, (206), 4 states have call successors, (78), 8 states have call predecessors, (78), 6 states have return successors, (63), 5 states have call predecessors, (63), 4 states have call successors, (63) [2022-07-14 00:51:57,473 INFO L276 IsEmpty]: Start isEmpty. Operand 16089 states and 23859 transitions. [2022-07-14 00:51:57,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-07-14 00:51:57,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:51:57,490 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:51:57,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-14 00:51:57,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:51:57,709 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:51:57,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:51:57,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1591977654, now seen corresponding path program 1 times [2022-07-14 00:51:57,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:51:57,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275995542] [2022-07-14 00:51:57,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:51:57,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:51:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:51:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:51:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:51:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:51:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:51:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:51:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 00:51:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:51:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:51:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-14 00:51:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:57,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:51:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-14 00:51:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:51:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 00:51:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-14 00:51:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:51:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 00:51:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-14 00:51:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:51:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-14 00:51:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:51:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-14 00:51:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-14 00:51:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 00:51:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:51:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-14 00:51:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-14 00:51:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-14 00:51:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-14 00:51:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:51:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2022-07-14 00:51:58,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:51:58,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275995542] [2022-07-14 00:51:58,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275995542] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:51:58,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:51:58,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-14 00:51:58,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411806789] [2022-07-14 00:51:58,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:51:58,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-14 00:51:58,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:51:58,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-14 00:51:58,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:51:58,330 INFO L87 Difference]: Start difference. First operand 16089 states and 23859 transitions. Second operand has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (32), 8 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-14 00:52:15,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:52:15,076 INFO L93 Difference]: Finished difference Result 23268 states and 35434 transitions. [2022-07-14 00:52:15,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 00:52:15,077 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (32), 8 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 310 [2022-07-14 00:52:15,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:52:15,177 INFO L225 Difference]: With dead ends: 23268 [2022-07-14 00:52:15,178 INFO L226 Difference]: Without dead ends: 19549 [2022-07-14 00:52:15,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2022-07-14 00:52:15,198 INFO L413 NwaCegarLoop]: 2807 mSDtfsCounter, 4287 mSDsluCounter, 15402 mSDsCounter, 0 mSdLazyCounter, 13909 mSolverCounterSat, 3429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4585 SdHoareTripleChecker+Valid, 18209 SdHoareTripleChecker+Invalid, 17338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3429 IncrementalHoareTripleChecker+Valid, 13909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:52:15,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4585 Valid, 18209 Invalid, 17338 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3429 Valid, 13909 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2022-07-14 00:52:15,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19549 states. [2022-07-14 00:52:16,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19549 to 16099. [2022-07-14 00:52:16,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16099 states, 11474 states have (on average 1.3769391668119226) internal successors, (15799), 12097 states have internal predecessors, (15799), 3531 states have call successors, (3531), 834 states have call predecessors, (3531), 1093 states have return successors, (4545), 3503 states have call predecessors, (4545), 3529 states have call successors, (4545) [2022-07-14 00:52:16,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16099 states to 16099 states and 23875 transitions. [2022-07-14 00:52:16,184 INFO L78 Accepts]: Start accepts. Automaton has 16099 states and 23875 transitions. Word has length 310 [2022-07-14 00:52:16,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:52:16,196 INFO L495 AbstractCegarLoop]: Abstraction has 16099 states and 23875 transitions. [2022-07-14 00:52:16,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (32), 8 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-14 00:52:16,196 INFO L276 IsEmpty]: Start isEmpty. Operand 16099 states and 23875 transitions. [2022-07-14 00:52:16,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-14 00:52:16,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:52:16,211 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:52:16,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 00:52:16,212 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:52:16,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:52:16,212 INFO L85 PathProgramCache]: Analyzing trace with hash -35733082, now seen corresponding path program 1 times [2022-07-14 00:52:16,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:52:16,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146450792] [2022-07-14 00:52:16,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:52:16,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:52:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:52:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:52:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:52:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:52:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:52:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:52:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 00:52:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:52:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-14 00:52:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:52:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-14 00:52:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:52:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 00:52:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-14 00:52:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 00:52:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-14 00:52:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:52:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-14 00:52:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:52:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-14 00:52:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-14 00:52:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 00:52:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:52:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-14 00:52:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-14 00:52:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-14 00:52:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-14 00:52:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:16,659 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-07-14 00:52:16,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:52:16,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146450792] [2022-07-14 00:52:16,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146450792] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:52:16,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7182948] [2022-07-14 00:52:16,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:52:16,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:52:16,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:52:16,661 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) [2022-07-14 00:52:16,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 00:52:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:17,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 2985 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-14 00:52:17,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:52:17,824 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 145 proven. 3 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-14 00:52:17,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:52:18,335 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-07-14 00:52:18,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7182948] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:52:18,335 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:52:18,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 22 [2022-07-14 00:52:18,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533249637] [2022-07-14 00:52:18,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:52:18,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-14 00:52:18,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:52:18,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-14 00:52:18,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-07-14 00:52:18,337 INFO L87 Difference]: Start difference. First operand 16099 states and 23875 transitions. Second operand has 22 states, 20 states have (on average 9.0) internal successors, (180), 16 states have internal predecessors, (180), 4 states have call successors, (81), 8 states have call predecessors, (81), 6 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2022-07-14 00:52:45,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:52:45,658 INFO L93 Difference]: Finished difference Result 34305 states and 51588 transitions. [2022-07-14 00:52:45,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-14 00:52:45,660 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 9.0) internal successors, (180), 16 states have internal predecessors, (180), 4 states have call successors, (81), 8 states have call predecessors, (81), 6 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) Word has length 311 [2022-07-14 00:52:45,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:52:45,746 INFO L225 Difference]: With dead ends: 34305 [2022-07-14 00:52:45,747 INFO L226 Difference]: Without dead ends: 18225 [2022-07-14 00:52:45,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 691 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=202, Invalid=988, Unknown=0, NotChecked=0, Total=1190 [2022-07-14 00:52:45,794 INFO L413 NwaCegarLoop]: 2144 mSDtfsCounter, 3802 mSDsluCounter, 16700 mSDsCounter, 0 mSdLazyCounter, 20429 mSolverCounterSat, 3339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3951 SdHoareTripleChecker+Valid, 18844 SdHoareTripleChecker+Invalid, 23768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3339 IncrementalHoareTripleChecker+Valid, 20429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:52:45,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3951 Valid, 18844 Invalid, 23768 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3339 Valid, 20429 Invalid, 0 Unknown, 0 Unchecked, 25.2s Time] [2022-07-14 00:52:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18225 states. [2022-07-14 00:52:46,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18225 to 16100. [2022-07-14 00:52:46,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16100 states, 11475 states have (on average 1.3769934640522876) internal successors, (15801), 12098 states have internal predecessors, (15801), 3531 states have call successors, (3531), 834 states have call predecessors, (3531), 1093 states have return successors, (4545), 3503 states have call predecessors, (4545), 3529 states have call successors, (4545) [2022-07-14 00:52:47,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16100 states to 16100 states and 23877 transitions. [2022-07-14 00:52:47,034 INFO L78 Accepts]: Start accepts. Automaton has 16100 states and 23877 transitions. Word has length 311 [2022-07-14 00:52:47,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:52:47,034 INFO L495 AbstractCegarLoop]: Abstraction has 16100 states and 23877 transitions. [2022-07-14 00:52:47,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 9.0) internal successors, (180), 16 states have internal predecessors, (180), 4 states have call successors, (81), 8 states have call predecessors, (81), 6 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2022-07-14 00:52:47,035 INFO L276 IsEmpty]: Start isEmpty. Operand 16100 states and 23877 transitions. [2022-07-14 00:52:47,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-14 00:52:47,050 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:52:47,051 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:52:47,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:52:47,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-14 00:52:47,268 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:52:47,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:52:47,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1042530326, now seen corresponding path program 2 times [2022-07-14 00:52:47,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:52:47,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403065337] [2022-07-14 00:52:47,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:52:47,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:52:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:52:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:52:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:52:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:52:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:52:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-14 00:52:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-14 00:52:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 00:52:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:52:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 00:52:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:52:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 00:52:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-14 00:52:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-14 00:52:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 00:52:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:52:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-14 00:52:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-14 00:52:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-14 00:52:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-14 00:52:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-14 00:52:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-14 00:52:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-14 00:52:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-14 00:52:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-14 00:52:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-14 00:52:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-14 00:52:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-14 00:52:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-07-14 00:52:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:47,716 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-07-14 00:52:47,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:52:47,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403065337] [2022-07-14 00:52:47,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403065337] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:52:47,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198273836] [2022-07-14 00:52:47,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:52:47,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:52:47,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:52:47,732 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) [2022-07-14 00:52:47,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 00:52:48,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 00:52:48,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:52:48,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 3015 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-14 00:52:48,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:52:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 152 proven. 6 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-07-14 00:52:49,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:52:49,621 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-07-14 00:52:49,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198273836] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:52:49,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:52:49,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 24 [2022-07-14 00:52:49,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599061443] [2022-07-14 00:52:49,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:52:49,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-14 00:52:49,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:52:49,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-14 00:52:49,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2022-07-14 00:52:49,623 INFO L87 Difference]: Start difference. First operand 16100 states and 23877 transitions. Second operand has 24 states, 22 states have (on average 8.272727272727273) internal successors, (182), 18 states have internal predecessors, (182), 4 states have call successors, (81), 8 states have call predecessors, (81), 6 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61)