./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.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 25e54376eacb2d0548e63287dfbc7c840529d47c5fe4674c2562ee16254781b6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:46:38,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:46:38,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:46:38,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:46:38,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:46:38,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:46:38,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:46:38,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:46:38,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:46:38,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:46:38,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:46:38,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:46:38,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:46:38,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:46:38,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:46:38,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:46:38,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:46:38,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:46:38,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:46:38,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:46:38,551 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:46:38,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:46:38,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:46:38,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:46:38,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:46:38,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:46:38,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:46:38,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:46:38,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:46:38,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:46:38,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:46:38,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:46:38,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:46:38,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:46:38,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:46:38,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:46:38,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:46:38,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:46:38,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:46:38,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:46:38,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:46:38,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:46:38,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:46:38,614 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:46:38,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:46:38,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:46:38,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:46:38,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:46:38,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:46:38,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:46:38,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:46:38,618 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:46:38,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:46:38,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:46:38,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:46:38,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:46:38,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:46:38,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:46:38,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:46:38,620 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:46:38,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:46:38,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:46:38,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:46:38,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:46:38,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:46:38,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:46:38,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:46:38,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:46:38,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:46:38,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:46:38,622 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:46:38,623 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:46:38,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:46:38,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25e54376eacb2d0548e63287dfbc7c840529d47c5fe4674c2562ee16254781b6 [2022-07-21 11:46:38,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:46:38,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:46:38,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:46:38,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:46:38,983 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:46:38,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2022-07-21 11:46:39,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec2a98845/b0fe299e3ce54e91be0b7d9c942b6afc/FLAG716454583 [2022-07-21 11:46:39,701 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:46:39,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2022-07-21 11:46:39,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec2a98845/b0fe299e3ce54e91be0b7d9c942b6afc/FLAG716454583 [2022-07-21 11:46:39,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec2a98845/b0fe299e3ce54e91be0b7d9c942b6afc [2022-07-21 11:46:39,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:46:39,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:46:39,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:46:39,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:46:39,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:46:39,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:46:39" (1/1) ... [2022-07-21 11:46:39,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@212425c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:39, skipping insertion in model container [2022-07-21 11:46:39,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:46:39" (1/1) ... [2022-07-21 11:46:39,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:46:39,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:46:40,772 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i[133750,133763] [2022-07-21 11:46:40,811 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-21 11:46:40,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:46:40,870 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:46:41,089 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i[133750,133763] [2022-07-21 11:46:41,102 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-21 11:46:41,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:46:41,180 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:46:41,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41 WrapperNode [2022-07-21 11:46:41,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:46:41,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:46:41,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:46:41,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:46:41,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41" (1/1) ... [2022-07-21 11:46:41,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41" (1/1) ... [2022-07-21 11:46:41,331 INFO L137 Inliner]: procedures = 189, calls = 838, calls flagged for inlining = 80, calls inlined = 60, statements flattened = 1698 [2022-07-21 11:46:41,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:46:41,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:46:41,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:46:41,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:46:41,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41" (1/1) ... [2022-07-21 11:46:41,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41" (1/1) ... [2022-07-21 11:46:41,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41" (1/1) ... [2022-07-21 11:46:41,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41" (1/1) ... [2022-07-21 11:46:41,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41" (1/1) ... [2022-07-21 11:46:41,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41" (1/1) ... [2022-07-21 11:46:41,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41" (1/1) ... [2022-07-21 11:46:41,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:46:41,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:46:41,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:46:41,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:46:41,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41" (1/1) ... [2022-07-21 11:46:41,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:46:41,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:46:41,524 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) [2022-07-21 11:46:41,552 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 [2022-07-21 11:46:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drv [2022-07-21 11:46:41,566 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drv [2022-07-21 11:46:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_destroy_port [2022-07-21 11:46:41,567 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_destroy_port [2022-07-21 11:46:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-21 11:46:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2022-07-21 11:46:41,567 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2022-07-21 11:46:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_add_port [2022-07-21 11:46:41,568 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_add_port [2022-07-21 11:46:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:46:41,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:46:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_bus_match [2022-07-21 11:46:41,568 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_bus_match [2022-07-21 11:46:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 11:46:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 11:46:41,569 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 11:46:41,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:46:41,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:46:41,569 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 11:46:41,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-07-21 11:46:41,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-07-21 11:46:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2022-07-21 11:46:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2022-07-21 11:46:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_driver_probe [2022-07-21 11:46:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_driver_probe [2022-07-21 11:46:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:46:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:46:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ns [2022-07-21 11:46:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ns [2022-07-21 11:46:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure old_gameport_measure_speed [2022-07-21 11:46:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure old_gameport_measure_speed [2022-07-21 11:46:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-21 11:46:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-21 11:46:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 11:46:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 11:46:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-07-21 11:46:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-07-21 11:46:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2022-07-21 11:46:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2022-07-21 11:46:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 11:46:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-21 11:46:41,573 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-21 11:46:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_driver_remove [2022-07-21 11:46:41,573 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_driver_remove [2022-07-21 11:46:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure device_release_driver [2022-07-21 11:46:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure device_release_driver [2022-07-21 11:46:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 11:46:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 11:46:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:46:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:46:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-07-21 11:46:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-07-21 11:46:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure description_show [2022-07-21 11:46:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure description_show [2022-07-21 11:46:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_find_driver [2022-07-21 11:46:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_find_driver [2022-07-21 11:46:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:46:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:46:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_disconnect_port [2022-07-21 11:46:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_disconnect_port [2022-07-21 11:46:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 11:46:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 11:46:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:46:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:46:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:46:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2022-07-21 11:46:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2022-07-21 11:46:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-07-21 11:46:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-07-21 11:46:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:46:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:46:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_remove_pending_events [2022-07-21 11:46:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_remove_pending_events [2022-07-21 11:46:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:46:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_event [2022-07-21 11:46:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_event [2022-07-21 11:46:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:46:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:46:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 11:46:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 11:46:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 11:46:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-07-21 11:46:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-07-21 11:46:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:46:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:46:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-21 11:46:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-21 11:46:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-21 11:46:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-21 11:46:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:46:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 11:46:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-21 11:46:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-21 11:46:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-07-21 11:46:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-07-21 11:46:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:46:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:46:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-07-21 11:46:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-07-21 11:46:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:46:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:46:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_measure_speed [2022-07-21 11:46:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_measure_speed [2022-07-21 11:46:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2022-07-21 11:46:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2022-07-21 11:46:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2022-07-21 11:46:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2022-07-21 11:46:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-21 11:46:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-21 11:46:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 11:46:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 11:46:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 11:46:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 11:46:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 11:46:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 11:46:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 11:46:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 11:46:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 11:46:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 11:46:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 11:46:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2022-07-21 11:46:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2022-07-21 11:46:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:46:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:46:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_handle_events [2022-07-21 11:46:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_handle_events [2022-07-21 11:46:42,067 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:46:42,069 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:46:42,385 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:46:43,224 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:46:43,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:46:43,242 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 11:46:43,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:46:43 BoogieIcfgContainer [2022-07-21 11:46:43,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:46:43,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:46:43,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:46:43,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:46:43,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:46:39" (1/3) ... [2022-07-21 11:46:43,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2516b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:46:43, skipping insertion in model container [2022-07-21 11:46:43,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:46:41" (2/3) ... [2022-07-21 11:46:43,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2516b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:46:43, skipping insertion in model container [2022-07-21 11:46:43,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:46:43" (3/3) ... [2022-07-21 11:46:43,251 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2022-07-21 11:46:43,263 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:46:43,264 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:46:43,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:46:43,375 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@102b48e8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@640b9c5d [2022-07-21 11:46:43,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:46:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 692 states, 481 states have (on average 1.3513513513513513) internal successors, (650), 506 states have internal predecessors, (650), 155 states have call successors, (155), 55 states have call predecessors, (155), 54 states have return successors, (147), 141 states have call predecessors, (147), 147 states have call successors, (147) [2022-07-21 11:46:43,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-21 11:46:43,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:46:43,401 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:46:43,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:46:43,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:46:43,407 INFO L85 PathProgramCache]: Analyzing trace with hash -948624270, now seen corresponding path program 1 times [2022-07-21 11:46:43,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:46:43,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313022592] [2022-07-21 11:46:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:46:43,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:46:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:46:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:43,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:43,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:46:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:43,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:43,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:43,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:46:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:46:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:46:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:46:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:46:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:46:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:46:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:46:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 11:46:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-07-21 11:46:44,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:46:44,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313022592] [2022-07-21 11:46:44,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313022592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:46:44,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:46:44,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:46:44,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473132500] [2022-07-21 11:46:44,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:46:44,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:46:44,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:46:44,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:46:44,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:46:44,220 INFO L87 Difference]: Start difference. First operand has 692 states, 481 states have (on average 1.3513513513513513) internal successors, (650), 506 states have internal predecessors, (650), 155 states have call successors, (155), 55 states have call predecessors, (155), 54 states have return successors, (147), 141 states have call predecessors, (147), 147 states have call successors, (147) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:46:45,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:46:45,450 INFO L93 Difference]: Finished difference Result 1672 states and 2492 transitions. [2022-07-21 11:46:45,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:46:45,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 194 [2022-07-21 11:46:45,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:46:45,470 INFO L225 Difference]: With dead ends: 1672 [2022-07-21 11:46:45,470 INFO L226 Difference]: Without dead ends: 964 [2022-07-21 11:46:45,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:46:45,479 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 487 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:46:45,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 2193 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 11:46:45,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2022-07-21 11:46:45,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 671. [2022-07-21 11:46:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 470 states have (on average 1.323404255319149) internal successors, (622), 485 states have internal predecessors, (622), 147 states have call successors, (147), 54 states have call predecessors, (147), 53 states have return successors, (145), 139 states have call predecessors, (145), 145 states have call successors, (145) [2022-07-21 11:46:45,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 914 transitions. [2022-07-21 11:46:45,573 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 914 transitions. Word has length 194 [2022-07-21 11:46:45,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:46:45,574 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 914 transitions. [2022-07-21 11:46:45,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:46:45,574 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 914 transitions. [2022-07-21 11:46:45,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-07-21 11:46:45,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:46:45,580 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:46:45,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 11:46:45,580 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:46:45,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:46:45,581 INFO L85 PathProgramCache]: Analyzing trace with hash 580733729, now seen corresponding path program 1 times [2022-07-21 11:46:45,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:46:45,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424612203] [2022-07-21 11:46:45,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:46:45,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:46:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:46:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:46:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:46:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:46:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:46:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:46:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:46:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:46:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:46:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:46:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:46,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:46,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:46,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 11:46:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:46,023 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-07-21 11:46:46,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:46:46,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424612203] [2022-07-21 11:46:46,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424612203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:46:46,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:46:46,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 11:46:46,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451251849] [2022-07-21 11:46:46,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:46:46,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:46:46,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:46:46,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:46:46,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:46:46,027 INFO L87 Difference]: Start difference. First operand 671 states and 914 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 11:46:51,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:46:51,805 INFO L93 Difference]: Finished difference Result 4378 states and 6739 transitions. [2022-07-21 11:46:51,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 11:46:51,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 191 [2022-07-21 11:46:51,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:46:51,845 INFO L225 Difference]: With dead ends: 4378 [2022-07-21 11:46:51,846 INFO L226 Difference]: Without dead ends: 3734 [2022-07-21 11:46:51,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2022-07-21 11:46:51,856 INFO L413 NwaCegarLoop]: 1232 mSDtfsCounter, 5274 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 4470 mSolverCounterSat, 3468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5568 SdHoareTripleChecker+Valid, 4302 SdHoareTripleChecker+Invalid, 7938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3468 IncrementalHoareTripleChecker+Valid, 4470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:46:51,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5568 Valid, 4302 Invalid, 7938 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3468 Valid, 4470 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-21 11:46:51,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2022-07-21 11:46:51,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 2677. [2022-07-21 11:46:51,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 1868 states have (on average 1.3297644539614561) internal successors, (2484), 1937 states have internal predecessors, (2484), 572 states have call successors, (572), 210 states have call predecessors, (572), 236 states have return successors, (793), 561 states have call predecessors, (793), 570 states have call successors, (793) [2022-07-21 11:46:52,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3849 transitions. [2022-07-21 11:46:52,024 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3849 transitions. Word has length 191 [2022-07-21 11:46:52,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:46:52,026 INFO L495 AbstractCegarLoop]: Abstraction has 2677 states and 3849 transitions. [2022-07-21 11:46:52,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 11:46:52,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3849 transitions. [2022-07-21 11:46:52,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-21 11:46:52,031 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:46:52,032 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:46:52,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 11:46:52,032 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:46:52,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:46:52,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1961396522, now seen corresponding path program 1 times [2022-07-21 11:46:52,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:46:52,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571979407] [2022-07-21 11:46:52,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:46:52,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:46:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:46:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:46:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:46:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:46:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:46:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:46:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:46:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:46:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:46:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:46:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:52,448 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-07-21 11:46:52,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:46:52,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571979407] [2022-07-21 11:46:52,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571979407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:46:52,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:46:52,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:46:52,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398292763] [2022-07-21 11:46:52,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:46:52,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:46:52,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:46:52,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:46:52,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:46:52,451 INFO L87 Difference]: Start difference. First operand 2677 states and 3849 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 11:46:53,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:46:53,373 INFO L93 Difference]: Finished difference Result 5791 states and 8928 transitions. [2022-07-21 11:46:53,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:46:53,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 188 [2022-07-21 11:46:53,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:46:53,398 INFO L225 Difference]: With dead ends: 5791 [2022-07-21 11:46:53,398 INFO L226 Difference]: Without dead ends: 3130 [2022-07-21 11:46:53,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:46:53,419 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 1079 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:46:53,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 1753 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 11:46:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2022-07-21 11:46:53,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 2658. [2022-07-21 11:46:53,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2658 states, 1850 states have (on average 1.3243243243243243) internal successors, (2450), 1918 states have internal predecessors, (2450), 571 states have call successors, (571), 210 states have call predecessors, (571), 236 states have return successors, (793), 561 states have call predecessors, (793), 570 states have call successors, (793) [2022-07-21 11:46:53,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2658 states to 2658 states and 3814 transitions. [2022-07-21 11:46:53,555 INFO L78 Accepts]: Start accepts. Automaton has 2658 states and 3814 transitions. Word has length 188 [2022-07-21 11:46:53,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:46:53,556 INFO L495 AbstractCegarLoop]: Abstraction has 2658 states and 3814 transitions. [2022-07-21 11:46:53,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 11:46:53,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2658 states and 3814 transitions. [2022-07-21 11:46:53,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-21 11:46:53,560 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:46:53,560 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:46:53,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 11:46:53,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:46:53,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:46:53,561 INFO L85 PathProgramCache]: Analyzing trace with hash 613908870, now seen corresponding path program 1 times [2022-07-21 11:46:53,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:46:53,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582478196] [2022-07-21 11:46:53,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:46:53,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:46:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:46:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:46:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:46:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:46:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:46:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:46:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:46:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:46:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:46:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:46:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 11:46:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:53,888 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-07-21 11:46:53,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:46:53,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582478196] [2022-07-21 11:46:53,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582478196] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:46:53,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:46:53,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:46:53,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227551392] [2022-07-21 11:46:53,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:46:53,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:46:53,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:46:53,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:46:53,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:46:53,891 INFO L87 Difference]: Start difference. First operand 2658 states and 3814 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:46:56,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:46:56,318 INFO L93 Difference]: Finished difference Result 9810 states and 15064 transitions. [2022-07-21 11:46:56,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:46:56,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 194 [2022-07-21 11:46:56,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:46:56,367 INFO L225 Difference]: With dead ends: 9810 [2022-07-21 11:46:56,367 INFO L226 Difference]: Without dead ends: 7179 [2022-07-21 11:46:56,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:46:56,383 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 2808 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 1985 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2989 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 3363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1985 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:46:56,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2989 Valid, 2361 Invalid, 3363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1985 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 11:46:56,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7179 states. [2022-07-21 11:46:56,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7179 to 5171. [2022-07-21 11:46:56,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 3599 states have (on average 1.3231453181439288) internal successors, (4762), 3735 states have internal predecessors, (4762), 1105 states have call successors, (1105), 413 states have call predecessors, (1105), 466 states have return successors, (1543), 1086 states have call predecessors, (1543), 1104 states have call successors, (1543) [2022-07-21 11:46:56,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 7410 transitions. [2022-07-21 11:46:56,682 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 7410 transitions. Word has length 194 [2022-07-21 11:46:56,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:46:56,683 INFO L495 AbstractCegarLoop]: Abstraction has 5171 states and 7410 transitions. [2022-07-21 11:46:56,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:46:56,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 7410 transitions. [2022-07-21 11:46:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-21 11:46:56,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:46:56,687 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:46:56,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 11:46:56,688 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:46:56,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:46:56,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1610071865, now seen corresponding path program 1 times [2022-07-21 11:46:56,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:46:56,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333889962] [2022-07-21 11:46:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:46:56,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:46:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:46:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:46:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:46:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:46:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:46:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:46:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:46:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:46:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:46:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:46:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:46:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:46:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-21 11:46:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:56,964 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-07-21 11:46:56,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:46:56,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333889962] [2022-07-21 11:46:56,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333889962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:46:56,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:46:56,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:46:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880253289] [2022-07-21 11:46:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:46:56,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:46:56,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:46:56,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:46:56,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:46:56,967 INFO L87 Difference]: Start difference. First operand 5171 states and 7410 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:46:59,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:46:59,321 INFO L93 Difference]: Finished difference Result 18967 states and 29007 transitions. [2022-07-21 11:46:59,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:46:59,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 208 [2022-07-21 11:46:59,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:46:59,422 INFO L225 Difference]: With dead ends: 18967 [2022-07-21 11:46:59,422 INFO L226 Difference]: Without dead ends: 13833 [2022-07-21 11:46:59,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:46:59,451 INFO L413 NwaCegarLoop]: 1190 mSDtfsCounter, 1624 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 3204 SdHoareTripleChecker+Invalid, 2692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 11:46:59,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 3204 Invalid, 2692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [864 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 11:46:59,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13833 states. [2022-07-21 11:47:00,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13833 to 9837. [2022-07-21 11:47:00,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9837 states, 6856 states have (on average 1.3204492415402567) internal successors, (9053), 7096 states have internal predecessors, (9053), 2073 states have call successors, (2073), 800 states have call predecessors, (2073), 907 states have return successors, (2904), 2052 states have call predecessors, (2904), 2072 states have call successors, (2904) [2022-07-21 11:47:00,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9837 states to 9837 states and 14030 transitions. [2022-07-21 11:47:00,089 INFO L78 Accepts]: Start accepts. Automaton has 9837 states and 14030 transitions. Word has length 208 [2022-07-21 11:47:00,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:00,090 INFO L495 AbstractCegarLoop]: Abstraction has 9837 states and 14030 transitions. [2022-07-21 11:47:00,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:47:00,091 INFO L276 IsEmpty]: Start isEmpty. Operand 9837 states and 14030 transitions. [2022-07-21 11:47:00,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-21 11:47:00,095 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:00,095 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2022-07-21 11:47:00,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 11:47:00,096 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:00,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:00,096 INFO L85 PathProgramCache]: Analyzing trace with hash -844034172, now seen corresponding path program 1 times [2022-07-21 11:47:00,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:47:00,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773912689] [2022-07-21 11:47:00,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:00,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:47:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:47:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:47:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:47:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:47:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:47:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:47:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:47:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:47:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:47:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 11:47:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 11:47:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 11:47:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-21 11:47:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-21 11:47:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 11:47:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 11:47:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-07-21 11:47:00,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:47:00,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773912689] [2022-07-21 11:47:00,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773912689] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:47:00,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:47:00,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 11:47:00,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728709857] [2022-07-21 11:47:00,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:47:00,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 11:47:00,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:47:00,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 11:47:00,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:47:00,534 INFO L87 Difference]: Start difference. First operand 9837 states and 14030 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 11:47:02,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:02,027 INFO L93 Difference]: Finished difference Result 21109 states and 31881 transitions. [2022-07-21 11:47:02,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:47:02,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 232 [2022-07-21 11:47:02,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:02,079 INFO L225 Difference]: With dead ends: 21109 [2022-07-21 11:47:02,079 INFO L226 Difference]: Without dead ends: 11313 [2022-07-21 11:47:02,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-21 11:47:02,133 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 500 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:02,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 3138 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 11:47:02,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11313 states. [2022-07-21 11:47:02,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11313 to 9705. [2022-07-21 11:47:02,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9705 states, 6756 states have (on average 1.3169034931912373) internal successors, (8897), 6980 states have internal predecessors, (8897), 2045 states have call successors, (2045), 800 states have call predecessors, (2045), 903 states have return successors, (2852), 2020 states have call predecessors, (2852), 2044 states have call successors, (2852) [2022-07-21 11:47:02,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9705 states to 9705 states and 13794 transitions. [2022-07-21 11:47:02,700 INFO L78 Accepts]: Start accepts. Automaton has 9705 states and 13794 transitions. Word has length 232 [2022-07-21 11:47:02,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:02,701 INFO L495 AbstractCegarLoop]: Abstraction has 9705 states and 13794 transitions. [2022-07-21 11:47:02,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 11:47:02,702 INFO L276 IsEmpty]: Start isEmpty. Operand 9705 states and 13794 transitions. [2022-07-21 11:47:02,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-21 11:47:02,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:02,706 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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] [2022-07-21 11:47:02,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 11:47:02,707 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:02,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:02,707 INFO L85 PathProgramCache]: Analyzing trace with hash 770588296, now seen corresponding path program 1 times [2022-07-21 11:47:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:47:02,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703816177] [2022-07-21 11:47:02,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:47:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:47:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:47:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:47:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:47:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:47:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:47:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:47:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:02,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:03,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:47:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:03,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:03,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:47:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:03,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:03,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 11:47:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:03,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:03,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:03,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-21 11:47:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:03,036 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-07-21 11:47:03,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:47:03,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703816177] [2022-07-21 11:47:03,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703816177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:47:03,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:47:03,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:47:03,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743543017] [2022-07-21 11:47:03,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:47:03,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:47:03,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:47:03,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:47:03,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:47:03,039 INFO L87 Difference]: Start difference. First operand 9705 states and 13794 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 11:47:05,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:05,591 INFO L93 Difference]: Finished difference Result 29787 states and 45016 transitions. [2022-07-21 11:47:05,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:47:05,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 228 [2022-07-21 11:47:05,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:05,679 INFO L225 Difference]: With dead ends: 29787 [2022-07-21 11:47:05,679 INFO L226 Difference]: Without dead ends: 20123 [2022-07-21 11:47:05,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:47:05,713 INFO L413 NwaCegarLoop]: 1328 mSDtfsCounter, 1504 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 834 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 2651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 834 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:05,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 3744 Invalid, 2651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [834 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 11:47:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20123 states. [2022-07-21 11:47:06,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20123 to 14509. [2022-07-21 11:47:06,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14509 states, 10120 states have (on average 1.3161067193675888) internal successors, (13319), 10456 states have internal predecessors, (13319), 3039 states have call successors, (3039), 1194 states have call predecessors, (3039), 1349 states have return successors, (4243), 3002 states have call predecessors, (4243), 3038 states have call successors, (4243) [2022-07-21 11:47:06,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14509 states to 14509 states and 20601 transitions. [2022-07-21 11:47:06,602 INFO L78 Accepts]: Start accepts. Automaton has 14509 states and 20601 transitions. Word has length 228 [2022-07-21 11:47:06,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:06,602 INFO L495 AbstractCegarLoop]: Abstraction has 14509 states and 20601 transitions. [2022-07-21 11:47:06,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 11:47:06,603 INFO L276 IsEmpty]: Start isEmpty. Operand 14509 states and 20601 transitions. [2022-07-21 11:47:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-21 11:47:06,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:06,609 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2022-07-21 11:47:06,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 11:47:06,609 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:06,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:06,610 INFO L85 PathProgramCache]: Analyzing trace with hash -986524631, now seen corresponding path program 1 times [2022-07-21 11:47:06,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:47:06,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031637407] [2022-07-21 11:47:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:06,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:47:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:47:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:47:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:47:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:47:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:47:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:47:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:47:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:47:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:47:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 11:47:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:47:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 11:47:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 11:47:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 11:47:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-21 11:47:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-21 11:47:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-21 11:47:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:06,891 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-07-21 11:47:06,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:47:06,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031637407] [2022-07-21 11:47:06,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031637407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:47:06,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:47:06,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:47:06,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948499309] [2022-07-21 11:47:06,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:47:06,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:47:06,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:47:06,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:47:06,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:47:06,894 INFO L87 Difference]: Start difference. First operand 14509 states and 20601 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 11:47:09,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:09,917 INFO L93 Difference]: Finished difference Result 48073 states and 70225 transitions. [2022-07-21 11:47:09,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:47:09,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 239 [2022-07-21 11:47:09,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:10,147 INFO L225 Difference]: With dead ends: 48073 [2022-07-21 11:47:10,148 INFO L226 Difference]: Without dead ends: 33605 [2022-07-21 11:47:10,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:47:10,203 INFO L413 NwaCegarLoop]: 1262 mSDtfsCounter, 1492 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 3441 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:10,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 3441 Invalid, 2396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [858 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-21 11:47:10,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33605 states. [2022-07-21 11:47:11,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33605 to 28777. [2022-07-21 11:47:11,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28777 states, 20060 states have (on average 1.3153040877367896) internal successors, (26385), 20732 states have internal predecessors, (26385), 6029 states have call successors, (6029), 2376 states have call predecessors, (6029), 2687 states have return successors, (8384), 5956 states have call predecessors, (8384), 6028 states have call successors, (8384) [2022-07-21 11:47:11,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28777 states to 28777 states and 40798 transitions. [2022-07-21 11:47:11,794 INFO L78 Accepts]: Start accepts. Automaton has 28777 states and 40798 transitions. Word has length 239 [2022-07-21 11:47:11,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:11,795 INFO L495 AbstractCegarLoop]: Abstraction has 28777 states and 40798 transitions. [2022-07-21 11:47:11,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 11:47:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 28777 states and 40798 transitions. [2022-07-21 11:47:11,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-21 11:47:11,801 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:11,801 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2022-07-21 11:47:11,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 11:47:11,801 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:11,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:11,802 INFO L85 PathProgramCache]: Analyzing trace with hash -986372997, now seen corresponding path program 1 times [2022-07-21 11:47:11,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:47:11,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039108557] [2022-07-21 11:47:11,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:11,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:47:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:11,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:11,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:47:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:47:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:47:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:47:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:47:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:47:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:47:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:47:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:47:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 11:47:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 11:47:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-21 11:47:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 11:47:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 11:47:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-21 11:47:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 11:47:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-21 11:47:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-07-21 11:47:12,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:47:12,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039108557] [2022-07-21 11:47:12,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039108557] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:47:12,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:47:12,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:47:12,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331127933] [2022-07-21 11:47:12,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:47:12,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:47:12,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:47:12,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:47:12,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:47:12,302 INFO L87 Difference]: Start difference. First operand 28777 states and 40798 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 11:47:14,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:14,392 INFO L93 Difference]: Finished difference Result 62241 states and 90119 transitions. [2022-07-21 11:47:14,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:47:14,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 242 [2022-07-21 11:47:14,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:14,548 INFO L225 Difference]: With dead ends: 62241 [2022-07-21 11:47:14,548 INFO L226 Difference]: Without dead ends: 33505 [2022-07-21 11:47:14,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:47:14,670 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 1542 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 841 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 841 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:14,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 1265 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [841 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 11:47:14,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33505 states. [2022-07-21 11:47:16,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33505 to 28681. [2022-07-21 11:47:16,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28681 states, 20012 states have (on average 1.313661802918249) internal successors, (26289), 20684 states have internal predecessors, (26289), 5981 states have call successors, (5981), 2376 states have call predecessors, (5981), 2687 states have return successors, (8228), 5908 states have call predecessors, (8228), 5980 states have call successors, (8228) [2022-07-21 11:47:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28681 states to 28681 states and 40498 transitions. [2022-07-21 11:47:16,279 INFO L78 Accepts]: Start accepts. Automaton has 28681 states and 40498 transitions. Word has length 242 [2022-07-21 11:47:16,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:16,279 INFO L495 AbstractCegarLoop]: Abstraction has 28681 states and 40498 transitions. [2022-07-21 11:47:16,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 11:47:16,280 INFO L276 IsEmpty]: Start isEmpty. Operand 28681 states and 40498 transitions. [2022-07-21 11:47:16,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-21 11:47:16,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:16,285 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2022-07-21 11:47:16,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 11:47:16,285 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:16,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:16,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1083364399, now seen corresponding path program 1 times [2022-07-21 11:47:16,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:47:16,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857868463] [2022-07-21 11:47:16,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:16,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:47:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:47:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:47:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:47:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:47:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:47:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:47:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:47:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:47:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:47:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 11:47:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 11:47:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 11:47:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-21 11:47:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-21 11:47:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 11:47:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-21 11:47:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-21 11:47:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:16,599 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-07-21 11:47:16,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:47:16,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857868463] [2022-07-21 11:47:16,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857868463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:47:16,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:47:16,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:47:16,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105020545] [2022-07-21 11:47:16,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:47:16,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:47:16,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:47:16,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:47:16,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:47:16,603 INFO L87 Difference]: Start difference. First operand 28681 states and 40498 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 11:47:19,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:19,081 INFO L93 Difference]: Finished difference Result 62049 states and 89495 transitions. [2022-07-21 11:47:19,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:47:19,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 241 [2022-07-21 11:47:19,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:19,224 INFO L225 Difference]: With dead ends: 62049 [2022-07-21 11:47:19,224 INFO L226 Difference]: Without dead ends: 33409 [2022-07-21 11:47:19,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:47:19,312 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 1309 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:19,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 1633 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 11:47:19,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33409 states. [2022-07-21 11:47:20,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33409 to 28585. [2022-07-21 11:47:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28585 states, 19964 states have (on average 1.3120116209176518) internal successors, (26193), 20636 states have internal predecessors, (26193), 5933 states have call successors, (5933), 2376 states have call predecessors, (5933), 2687 states have return successors, (8072), 5860 states have call predecessors, (8072), 5932 states have call successors, (8072) [2022-07-21 11:47:20,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28585 states to 28585 states and 40198 transitions. [2022-07-21 11:47:20,820 INFO L78 Accepts]: Start accepts. Automaton has 28585 states and 40198 transitions. Word has length 241 [2022-07-21 11:47:20,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:20,821 INFO L495 AbstractCegarLoop]: Abstraction has 28585 states and 40198 transitions. [2022-07-21 11:47:20,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 11:47:20,821 INFO L276 IsEmpty]: Start isEmpty. Operand 28585 states and 40198 transitions. [2022-07-21 11:47:20,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-07-21 11:47:20,826 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:20,826 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2022-07-21 11:47:20,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 11:47:20,826 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:20,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:20,827 INFO L85 PathProgramCache]: Analyzing trace with hash 6727430, now seen corresponding path program 1 times [2022-07-21 11:47:20,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:47:20,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420536451] [2022-07-21 11:47:20,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:20,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:47:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:20,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:20,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:47:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:20,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:47:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:20,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:47:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:47:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:47:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:47:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:47:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:47:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:47:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 11:47:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 11:47:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 11:47:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-21 11:47:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 11:47:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 11:47:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-21 11:47:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-21 11:47:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-07-21 11:47:21,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:47:21,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420536451] [2022-07-21 11:47:21,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420536451] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:47:21,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:47:21,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:47:21,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653263117] [2022-07-21 11:47:21,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:47:21,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:47:21,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:47:21,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:47:21,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:47:21,132 INFO L87 Difference]: Start difference. First operand 28585 states and 40198 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 11:47:23,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:23,615 INFO L93 Difference]: Finished difference Result 61857 states and 88871 transitions. [2022-07-21 11:47:23,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:47:23,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 243 [2022-07-21 11:47:23,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:23,761 INFO L225 Difference]: With dead ends: 61857 [2022-07-21 11:47:23,762 INFO L226 Difference]: Without dead ends: 33313 [2022-07-21 11:47:23,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:47:23,860 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 1533 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 837 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:23,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1610 Valid, 1257 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [837 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 11:47:23,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33313 states. [2022-07-21 11:47:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33313 to 28489. [2022-07-21 11:47:25,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28489 states, 19916 states have (on average 1.310353484635469) internal successors, (26097), 20588 states have internal predecessors, (26097), 5885 states have call successors, (5885), 2376 states have call predecessors, (5885), 2687 states have return successors, (7916), 5812 states have call predecessors, (7916), 5884 states have call successors, (7916) [2022-07-21 11:47:25,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28489 states to 28489 states and 39898 transitions. [2022-07-21 11:47:25,345 INFO L78 Accepts]: Start accepts. Automaton has 28489 states and 39898 transitions. Word has length 243 [2022-07-21 11:47:25,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:25,346 INFO L495 AbstractCegarLoop]: Abstraction has 28489 states and 39898 transitions. [2022-07-21 11:47:25,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 11:47:25,346 INFO L276 IsEmpty]: Start isEmpty. Operand 28489 states and 39898 transitions. [2022-07-21 11:47:25,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-21 11:47:25,349 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:25,350 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2022-07-21 11:47:25,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 11:47:25,350 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:25,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:25,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1458519858, now seen corresponding path program 1 times [2022-07-21 11:47:25,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:47:25,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119961224] [2022-07-21 11:47:25,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:25,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:47:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:47:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:47:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:47:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:47:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:47:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:47:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:47:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:47:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:47:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:47:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 11:47:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 11:47:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 11:47:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-21 11:47:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-21 11:47:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 11:47:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 11:47:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:25,593 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-07-21 11:47:25,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:47:25,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119961224] [2022-07-21 11:47:25,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119961224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:47:25,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:47:25,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:47:25,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231118951] [2022-07-21 11:47:25,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:47:25,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:47:25,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:47:25,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:47:25,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:47:25,595 INFO L87 Difference]: Start difference. First operand 28489 states and 39898 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 11:47:28,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:28,020 INFO L93 Difference]: Finished difference Result 59407 states and 84991 transitions. [2022-07-21 11:47:28,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:47:28,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 244 [2022-07-21 11:47:28,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:28,113 INFO L225 Difference]: With dead ends: 59407 [2022-07-21 11:47:28,113 INFO L226 Difference]: Without dead ends: 30959 [2022-07-21 11:47:28,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:47:28,169 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 1525 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 831 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 831 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:28,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 1246 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [831 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 11:47:28,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30959 states. [2022-07-21 11:47:29,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30959 to 26485. [2022-07-21 11:47:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26485 states, 18600 states have (on average 1.3109139784946238) internal successors, (24383), 19226 states have internal predecessors, (24383), 5393 states have call successors, (5393), 2194 states have call predecessors, (5393), 2491 states have return successors, (7148), 5332 states have call predecessors, (7148), 5392 states have call successors, (7148) [2022-07-21 11:47:29,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26485 states to 26485 states and 36924 transitions. [2022-07-21 11:47:29,390 INFO L78 Accepts]: Start accepts. Automaton has 26485 states and 36924 transitions. Word has length 244 [2022-07-21 11:47:29,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:29,390 INFO L495 AbstractCegarLoop]: Abstraction has 26485 states and 36924 transitions. [2022-07-21 11:47:29,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 11:47:29,391 INFO L276 IsEmpty]: Start isEmpty. Operand 26485 states and 36924 transitions. [2022-07-21 11:47:29,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-21 11:47:29,394 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:29,395 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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] [2022-07-21 11:47:29,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 11:47:29,395 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:29,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:29,396 INFO L85 PathProgramCache]: Analyzing trace with hash 200708283, now seen corresponding path program 1 times [2022-07-21 11:47:29,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:47:29,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047272359] [2022-07-21 11:47:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:29,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:47:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:47:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:47:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:47:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:47:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:47:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:47:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:47:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:47:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:47:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 11:47:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 11:47:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:29,645 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2022-07-21 11:47:29,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:47:29,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047272359] [2022-07-21 11:47:29,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047272359] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:47:29,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:47:29,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:47:29,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882007238] [2022-07-21 11:47:29,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:47:29,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:47:29,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:47:29,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:47:29,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:47:29,648 INFO L87 Difference]: Start difference. First operand 26485 states and 36924 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 11:47:32,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:32,529 INFO L93 Difference]: Finished difference Result 63243 states and 93189 transitions. [2022-07-21 11:47:32,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:47:32,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 242 [2022-07-21 11:47:32,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:32,642 INFO L225 Difference]: With dead ends: 63243 [2022-07-21 11:47:32,642 INFO L226 Difference]: Without dead ends: 36799 [2022-07-21 11:47:32,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:47:32,693 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 664 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:32,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 2377 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 11:47:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36799 states. [2022-07-21 11:47:33,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36799 to 26509. [2022-07-21 11:47:34,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26509 states, 18624 states have (on average 1.3105133161512028) internal successors, (24407), 19250 states have internal predecessors, (24407), 5393 states have call successors, (5393), 2194 states have call predecessors, (5393), 2491 states have return successors, (7148), 5332 states have call predecessors, (7148), 5392 states have call successors, (7148) [2022-07-21 11:47:34,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26509 states to 26509 states and 36948 transitions. [2022-07-21 11:47:34,245 INFO L78 Accepts]: Start accepts. Automaton has 26509 states and 36948 transitions. Word has length 242 [2022-07-21 11:47:34,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:34,247 INFO L495 AbstractCegarLoop]: Abstraction has 26509 states and 36948 transitions. [2022-07-21 11:47:34,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 11:47:34,247 INFO L276 IsEmpty]: Start isEmpty. Operand 26509 states and 36948 transitions. [2022-07-21 11:47:34,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-21 11:47:34,251 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:34,251 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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] [2022-07-21 11:47:34,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 11:47:34,251 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:34,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:34,252 INFO L85 PathProgramCache]: Analyzing trace with hash 66694777, now seen corresponding path program 1 times [2022-07-21 11:47:34,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:47:34,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578290729] [2022-07-21 11:47:34,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:34,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:47:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:47:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:47:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:47:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:47:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:47:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:47:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:47:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:47:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:47:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 11:47:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 11:47:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:34,561 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2022-07-21 11:47:34,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:47:34,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578290729] [2022-07-21 11:47:34,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578290729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:47:34,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:47:34,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:47:34,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830355386] [2022-07-21 11:47:34,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:47:34,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:47:34,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:47:34,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:47:34,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:47:34,564 INFO L87 Difference]: Start difference. First operand 26509 states and 36948 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 11:47:37,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:37,500 INFO L93 Difference]: Finished difference Result 63271 states and 93194 transitions. [2022-07-21 11:47:37,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:47:37,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 242 [2022-07-21 11:47:37,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:37,618 INFO L225 Difference]: With dead ends: 63271 [2022-07-21 11:47:37,618 INFO L226 Difference]: Without dead ends: 36800 [2022-07-21 11:47:37,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:47:37,678 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 664 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:37,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 2412 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 11:47:37,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36800 states. [2022-07-21 11:47:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36800 to 26510. [2022-07-21 11:47:39,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26510 states, 18625 states have (on average 1.310496644295302) internal successors, (24408), 19251 states have internal predecessors, (24408), 5393 states have call successors, (5393), 2194 states have call predecessors, (5393), 2491 states have return successors, (7148), 5332 states have call predecessors, (7148), 5392 states have call successors, (7148) [2022-07-21 11:47:39,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26510 states to 26510 states and 36949 transitions. [2022-07-21 11:47:39,100 INFO L78 Accepts]: Start accepts. Automaton has 26510 states and 36949 transitions. Word has length 242 [2022-07-21 11:47:39,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:39,100 INFO L495 AbstractCegarLoop]: Abstraction has 26510 states and 36949 transitions. [2022-07-21 11:47:39,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 11:47:39,101 INFO L276 IsEmpty]: Start isEmpty. Operand 26510 states and 36949 transitions. [2022-07-21 11:47:39,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-07-21 11:47:39,104 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:39,104 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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] [2022-07-21 11:47:39,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 11:47:39,104 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:39,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:39,105 INFO L85 PathProgramCache]: Analyzing trace with hash -633339791, now seen corresponding path program 1 times [2022-07-21 11:47:39,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:47:39,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987945225] [2022-07-21 11:47:39,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:39,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:47:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:47:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:47:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:47:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:47:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:47:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:47:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:47:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:47:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:47:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 11:47:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-21 11:47:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2022-07-21 11:47:39,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:47:39,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987945225] [2022-07-21 11:47:39,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987945225] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 11:47:39,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295047301] [2022-07-21 11:47:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:39,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:47:39,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:47:39,639 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) [2022-07-21 11:47:39,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 11:47:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:40,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 11:47:40,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:47:40,307 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2022-07-21 11:47:40,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:47:40,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295047301] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:47:40,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 11:47:40,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-07-21 11:47:40,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786019321] [2022-07-21 11:47:40,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:47:40,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:47:40,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:47:40,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:47:40,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:47:40,310 INFO L87 Difference]: Start difference. First operand 26510 states and 36949 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 11:47:41,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:41,525 INFO L93 Difference]: Finished difference Result 53126 states and 74042 transitions. [2022-07-21 11:47:41,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:47:41,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 243 [2022-07-21 11:47:41,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:41,604 INFO L225 Difference]: With dead ends: 53126 [2022-07-21 11:47:41,604 INFO L226 Difference]: Without dead ends: 26466 [2022-07-21 11:47:41,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-21 11:47:41,664 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 3 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2623 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:41,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2623 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:47:41,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26466 states. [2022-07-21 11:47:42,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26466 to 26290. [2022-07-21 11:47:42,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26290 states, 18405 states have (on average 1.308992121706058) internal successors, (24092), 19031 states have internal predecessors, (24092), 5393 states have call successors, (5393), 2194 states have call predecessors, (5393), 2491 states have return successors, (7148), 5332 states have call predecessors, (7148), 5392 states have call successors, (7148) [2022-07-21 11:47:43,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26290 states to 26290 states and 36633 transitions. [2022-07-21 11:47:43,075 INFO L78 Accepts]: Start accepts. Automaton has 26290 states and 36633 transitions. Word has length 243 [2022-07-21 11:47:43,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:43,076 INFO L495 AbstractCegarLoop]: Abstraction has 26290 states and 36633 transitions. [2022-07-21 11:47:43,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 11:47:43,076 INFO L276 IsEmpty]: Start isEmpty. Operand 26290 states and 36633 transitions. [2022-07-21 11:47:43,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-07-21 11:47:43,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:43,080 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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] [2022-07-21 11:47:43,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 11:47:43,307 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,SelfDestructingSolverStorable14 [2022-07-21 11:47:43,308 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:43,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:43,308 INFO L85 PathProgramCache]: Analyzing trace with hash 45932463, now seen corresponding path program 1 times [2022-07-21 11:47:43,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:47:43,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978599649] [2022-07-21 11:47:43,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:43,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:47:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:47:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:47:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:47:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:47:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 11:47:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 11:47:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 11:47:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 11:47:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:47:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 11:47:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 11:47:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:47:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:47:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-21 11:47:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:43,617 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2022-07-21 11:47:43,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:47:43,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978599649] [2022-07-21 11:47:43,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978599649] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 11:47:43,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645653409] [2022-07-21 11:47:43,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:43,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:47:43,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:47:43,620 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) [2022-07-21 11:47:43,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 11:47:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:44,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 2588 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-21 11:47:44,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:47:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 140 proven. 1 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2022-07-21 11:47:44,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:47:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2022-07-21 11:47:44,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645653409] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:47:44,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 11:47:44,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-07-21 11:47:44,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684340709] [2022-07-21 11:47:44,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 11:47:44,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 11:47:44,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:47:44,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 11:47:44,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-21 11:47:44,670 INFO L87 Difference]: Start difference. First operand 26290 states and 36633 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)