./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--r8152.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--r8152.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 5b9b8810066c6b805a125dba67c1c1409161534a09c0fedd6964ff3375355a5b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 00:39:32,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 00:39:32,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 00:39:32,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 00:39:32,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 00:39:32,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 00:39:32,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 00:39:32,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 00:39:32,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 00:39:32,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 00:39:32,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 00:39:32,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 00:39:32,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 00:39:32,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 00:39:32,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 00:39:32,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 00:39:32,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 00:39:32,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 00:39:32,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 00:39:32,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 00:39:32,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 00:39:32,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 00:39:32,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 00:39:32,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 00:39:32,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 00:39:32,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 00:39:32,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 00:39:32,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 00:39:32,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 00:39:32,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 00:39:32,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 00:39:32,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 00:39:32,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 00:39:32,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 00:39:32,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 00:39:32,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 00:39:32,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 00:39:32,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 00:39:32,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 00:39:32,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 00:39:32,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 00:39:32,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 00:39:32,630 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 00:39:32,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 00:39:32,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 00:39:32,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 00:39:32,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 00:39:32,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 00:39:32,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 00:39:32,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 00:39:32,641 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 00:39:32,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 00:39:32,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 00:39:32,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 00:39:32,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 00:39:32,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 00:39:32,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 00:39:32,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 00:39:32,643 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 00:39:32,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 00:39:32,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 00:39:32,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 00:39:32,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 00:39:32,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 00:39:32,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 00:39:32,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 00:39:32,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 00:39:32,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 00:39:32,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 00:39:32,645 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 00:39:32,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 00:39:32,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 00:39:32,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 00:39:32,646 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b9b8810066c6b805a125dba67c1c1409161534a09c0fedd6964ff3375355a5b [2021-11-17 00:39:32,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 00:39:32,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 00:39:32,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 00:39:32,874 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 00:39:32,875 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 00:39:32,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--r8152.ko-entry_point.cil.out.i [2021-11-17 00:39:32,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0e3f5827/9c6c05a09dbc4540a06a947c66dcdf2e/FLAG83a7d9dd8 [2021-11-17 00:39:33,599 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 00:39:33,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--r8152.ko-entry_point.cil.out.i [2021-11-17 00:39:33,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0e3f5827/9c6c05a09dbc4540a06a947c66dcdf2e/FLAG83a7d9dd8 [2021-11-17 00:39:33,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0e3f5827/9c6c05a09dbc4540a06a947c66dcdf2e [2021-11-17 00:39:33,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 00:39:33,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 00:39:33,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 00:39:33,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 00:39:33,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 00:39:33,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:39:33" (1/1) ... [2021-11-17 00:39:33,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2cfa84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:33, skipping insertion in model container [2021-11-17 00:39:33,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:39:33" (1/1) ... [2021-11-17 00:39:33,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 00:39:34,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 00:39:35,052 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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--r8152.ko-entry_point.cil.out.i[196184,196197] [2021-11-17 00:39:35,956 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 00:39:36,002 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 00:39:36,124 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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--r8152.ko-entry_point.cil.out.i[196184,196197] [2021-11-17 00:39:36,373 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 00:39:36,478 INFO L208 MainTranslator]: Completed translation [2021-11-17 00:39:36,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36 WrapperNode [2021-11-17 00:39:36,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 00:39:36,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 00:39:36,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 00:39:36,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 00:39:36,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36" (1/1) ... [2021-11-17 00:39:36,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36" (1/1) ... [2021-11-17 00:39:36,664 INFO L137 Inliner]: procedures = 372, calls = 2044, calls flagged for inlining = 175, calls inlined = 127, statements flattened = 4340 [2021-11-17 00:39:36,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 00:39:36,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 00:39:36,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 00:39:36,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 00:39:36,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36" (1/1) ... [2021-11-17 00:39:36,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36" (1/1) ... [2021-11-17 00:39:36,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36" (1/1) ... [2021-11-17 00:39:36,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36" (1/1) ... [2021-11-17 00:39:36,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36" (1/1) ... [2021-11-17 00:39:36,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36" (1/1) ... [2021-11-17 00:39:36,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36" (1/1) ... [2021-11-17 00:39:36,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 00:39:36,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 00:39:36,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 00:39:36,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 00:39:36,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36" (1/1) ... [2021-11-17 00:39:36,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 00:39:36,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 00:39:36,849 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) [2021-11-17 00:39:36,870 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 [2021-11-17 00:39:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-17 00:39:36,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-17 00:39:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-17 00:39:36,879 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-17 00:39:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 00:39:36,879 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 00:39:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-17 00:39:36,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-17 00:39:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-17 00:39:36,880 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-17 00:39:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_write_byte [2021-11-17 00:39:36,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_write_byte [2021-11-17 00:39:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 00:39:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 00:39:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 00:39:36,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 00:39:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_work_func_t [2021-11-17 00:39:36,881 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_work_func_t [2021-11-17 00:39:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-17 00:39:36,881 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-17 00:39:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 00:39:36,881 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 00:39:36,882 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 00:39:36,882 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 00:39:36,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 00:39:36,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 00:39:36,882 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_disconnect [2021-11-17 00:39:36,882 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_disconnect [2021-11-17 00:39:36,882 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_enable [2021-11-17 00:39:36,882 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_enable [2021-11-17 00:39:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-17 00:39:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-17 00:39:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2021-11-17 00:39:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2021-11-17 00:39:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_speed [2021-11-17 00:39:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_speed [2021-11-17 00:39:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-11-17 00:39:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-11-17 00:39:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2021-11-17 00:39:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2021-11-17 00:39:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-17 00:39:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-17 00:39:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 00:39:36,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 00:39:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure pla_ocp_read [2021-11-17 00:39:36,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pla_ocp_read [2021-11-17 00:39:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-17 00:39:36,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-17 00:39:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 00:39:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 00:39:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_nic_reset [2021-11-17 00:39:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_nic_reset [2021-11-17 00:39:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 00:39:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 00:39:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_reg_read [2021-11-17 00:39:36,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_reg_read [2021-11-17 00:39:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 00:39:36,888 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 00:39:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 00:39:36,888 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 00:39:36,889 INFO L130 BoogieDeclarations]: Found specification of procedure generic_ocp_write [2021-11-17 00:39:36,889 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_ocp_write [2021-11-17 00:39:36,889 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-17 00:39:36,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-17 00:39:36,889 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 00:39:36,890 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 00:39:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_eee_plus [2021-11-17 00:39:36,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_eee_plus [2021-11-17 00:39:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_write_dword [2021-11-17 00:39:36,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_write_dword [2021-11-17 00:39:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 00:39:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure tx_agg_align [2021-11-17 00:39:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_agg_align [2021-11-17 00:39:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 00:39:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 00:39:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-17 00:39:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-17 00:39:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 00:39:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 00:39:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 00:39:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-17 00:39:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-17 00:39:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure pla_ocp_write [2021-11-17 00:39:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pla_ocp_write [2021-11-17 00:39:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 00:39:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 00:39:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 00:39:36,893 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 00:39:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-17 00:39:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 00:39:36,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 00:39:36,894 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_get_speed [2021-11-17 00:39:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_get_speed [2021-11-17 00:39:36,894 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_reg_write [2021-11-17 00:39:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_reg_write [2021-11-17 00:39:36,894 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_tx_timeout [2021-11-17 00:39:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_tx_timeout [2021-11-17 00:39:36,895 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_disable [2021-11-17 00:39:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_disable [2021-11-17 00:39:36,895 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_read_dword [2021-11-17 00:39:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_read_dword [2021-11-17 00:39:36,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 00:39:36,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 00:39:36,896 INFO L130 BoogieDeclarations]: Found specification of procedure rx_agg_align [2021-11-17 00:39:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_agg_align [2021-11-17 00:39:36,896 INFO L130 BoogieDeclarations]: Found specification of procedure __rtl_get_wol [2021-11-17 00:39:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __rtl_get_wol [2021-11-17 00:39:36,896 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mdio_write [2021-11-17 00:39:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mdio_write [2021-11-17 00:39:36,897 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-17 00:39:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-17 00:39:36,897 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 00:39:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 00:39:36,897 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-17 00:39:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-17 00:39:36,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___skb_dequeue_14 [2021-11-17 00:39:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___skb_dequeue_14 [2021-11-17 00:39:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_submit_rx [2021-11-17 00:39:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_submit_rx [2021-11-17 00:39:36,900 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 00:39:36,900 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 00:39:36,900 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-17 00:39:36,900 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-17 00:39:36,901 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 00:39:36,902 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 00:39:36,902 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 00:39:36,902 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 00:39:36,902 INFO L130 BoogieDeclarations]: Found specification of procedure __rtl_set_wol [2021-11-17 00:39:36,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __rtl_set_wol [2021-11-17 00:39:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_power_cut_en [2021-11-17 00:39:36,906 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_power_cut_en [2021-11-17 00:39:36,907 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_write_word [2021-11-17 00:39:36,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_write_word [2021-11-17 00:39:36,907 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-17 00:39:36,907 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-17 00:39:36,907 INFO L130 BoogieDeclarations]: Found specification of procedure r8152b_enable_fc [2021-11-17 00:39:36,907 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152b_enable_fc [2021-11-17 00:39:36,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 00:39:36,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 00:39:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 00:39:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 00:39:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 00:39:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-17 00:39:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-17 00:39:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 00:39:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2021-11-17 00:39:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2021-11-17 00:39:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-17 00:39:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-17 00:39:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 00:39:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 00:39:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 00:39:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_splice_init [2021-11-17 00:39:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_splice_init [2021-11-17 00:39:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2021-11-17 00:39:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2021-11-17 00:39:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 00:39:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 00:39:36,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-11-17 00:39:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-11-17 00:39:36,910 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_node [2021-11-17 00:39:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_node [2021-11-17 00:39:36,910 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 00:39:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 00:39:36,910 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 00:39:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 00:39:36,910 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-17 00:39:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-17 00:39:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure sram_read [2021-11-17 00:39:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure sram_read [2021-11-17 00:39:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 00:39:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 00:39:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-17 00:39:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-17 00:39:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_teredo_off [2021-11-17 00:39:36,912 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_teredo_off [2021-11-17 00:39:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 00:39:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-17 00:39:36,912 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-17 00:39:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_open [2021-11-17 00:39:36,912 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_open [2021-11-17 00:39:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 00:39:36,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 00:39:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2021-11-17 00:39:36,913 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2021-11-17 00:39:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_runtime_suspend_enable [2021-11-17 00:39:36,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_runtime_suspend_enable [2021-11-17 00:39:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_close [2021-11-17 00:39:36,914 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_close [2021-11-17 00:39:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_power_cut_en [2021-11-17 00:39:36,914 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_power_cut_en [2021-11-17 00:39:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_u1u2en [2021-11-17 00:39:36,914 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_u1u2en [2021-11-17 00:39:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure generic_ocp_read [2021-11-17 00:39:36,914 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_ocp_read [2021-11-17 00:39:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 00:39:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_enable_aldps [2021-11-17 00:39:36,915 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_enable_aldps [2021-11-17 00:39:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_tally_reset [2021-11-17 00:39:36,915 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_tally_reset [2021-11-17 00:39:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_drop_queued_tx [2021-11-17 00:39:36,915 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_drop_queued_tx [2021-11-17 00:39:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mdio_read [2021-11-17 00:39:36,915 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mdio_read [2021-11-17 00:39:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_resume [2021-11-17 00:39:36,915 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_resume [2021-11-17 00:39:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 00:39:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure rxdy_gated_en [2021-11-17 00:39:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure rxdy_gated_en [2021-11-17 00:39:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 00:39:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 00:39:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_clear_bp [2021-11-17 00:39:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_clear_bp [2021-11-17 00:39:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 00:39:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 00:39:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 00:39:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure r8152b_enable_aldps [2021-11-17 00:39:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152b_enable_aldps [2021-11-17 00:39:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 00:39:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 00:39:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-17 00:39:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-17 00:39:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_splice [2021-11-17 00:39:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_splice [2021-11-17 00:39:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-17 00:39:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-17 00:39:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_mem [2021-11-17 00:39:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_mem [2021-11-17 00:39:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-17 00:39:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-17 00:39:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-17 00:39:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-17 00:39:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_read_byte [2021-11-17 00:39:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_read_byte [2021-11-17 00:39:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_mac_address [2021-11-17 00:39:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_mac_address [2021-11-17 00:39:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure sram_write [2021-11-17 00:39:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure sram_write [2021-11-17 00:39:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_read_word [2021-11-17 00:39:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_read_word [2021-11-17 00:39:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 00:39:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 00:39:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_qlen [2021-11-17 00:39:36,920 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_qlen [2021-11-17 00:39:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 00:39:36,921 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 00:39:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_rx_mode [2021-11-17 00:39:36,923 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_rx_mode [2021-11-17 00:39:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_ioctl [2021-11-17 00:39:36,924 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_ioctl [2021-11-17 00:39:36,924 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-17 00:39:36,924 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-17 00:39:36,924 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2021-11-17 00:39:36,924 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2021-11-17 00:39:36,924 INFO L130 BoogieDeclarations]: Found specification of procedure r8152b_disable_aldps [2021-11-17 00:39:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152b_disable_aldps [2021-11-17 00:39:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 00:39:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 00:39:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 00:39:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2021-11-17 00:39:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2021-11-17 00:39:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-17 00:39:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 00:39:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 00:39:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2021-11-17 00:39:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2021-11-17 00:39:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 00:39:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 00:39:37,509 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 00:39:37,512 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 00:39:37,632 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 00:40:08,771 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 00:40:08,792 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 00:40:08,792 INFO L301 CfgBuilder]: Removed 15 assume(true) statements. [2021-11-17 00:40:08,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:40:08 BoogieIcfgContainer [2021-11-17 00:40:08,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 00:40:08,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 00:40:08,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 00:40:08,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 00:40:08,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:39:33" (1/3) ... [2021-11-17 00:40:08,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55238706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:40:08, skipping insertion in model container [2021-11-17 00:40:08,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:39:36" (2/3) ... [2021-11-17 00:40:08,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55238706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:40:08, skipping insertion in model container [2021-11-17 00:40:08,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:40:08" (3/3) ... [2021-11-17 00:40:08,802 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--r8152.ko-entry_point.cil.out.i [2021-11-17 00:40:08,805 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 00:40:08,805 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 00:40:08,846 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 00:40:08,859 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 00:40:08,860 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 00:40:08,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 2135 states, 1331 states have (on average 1.3185574755822689) internal successors, (1755), 1395 states have internal predecessors, (1755), 689 states have call successors, (689), 125 states have call predecessors, (689), 124 states have return successors, (684), 669 states have call predecessors, (684), 684 states have call successors, (684) [2021-11-17 00:40:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-17 00:40:08,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:40:08,921 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:40:08,921 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:40:08,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:40:08,925 INFO L85 PathProgramCache]: Analyzing trace with hash 929910543, now seen corresponding path program 1 times [2021-11-17 00:40:08,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:40:08,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350128830] [2021-11-17 00:40:08,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:40:08,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:40:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:40:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:09,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:09,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:40:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:40:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:09,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:40:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:09,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:40:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:40:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:09,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:40:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:40:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:09,702 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-17 00:40:09,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:40:09,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350128830] [2021-11-17 00:40:09,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350128830] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:40:09,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:40:09,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 00:40:09,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177609271] [2021-11-17 00:40:09,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:40:09,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 00:40:09,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:40:09,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 00:40:09,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 00:40:09,739 INFO L87 Difference]: Start difference. First operand has 2135 states, 1331 states have (on average 1.3185574755822689) internal successors, (1755), 1395 states have internal predecessors, (1755), 689 states have call successors, (689), 125 states have call predecessors, (689), 124 states have return successors, (684), 669 states have call predecessors, (684), 684 states have call successors, (684) Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-17 00:40:11,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:40:14,076 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:40:16,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:40:38,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:40:38,998 INFO L93 Difference]: Finished difference Result 7093 states and 11669 transitions. [2021-11-17 00:40:39,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 00:40:39,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 72 [2021-11-17 00:40:39,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:40:39,073 INFO L225 Difference]: With dead ends: 7093 [2021-11-17 00:40:39,073 INFO L226 Difference]: Without dead ends: 4945 [2021-11-17 00:40:39,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 00:40:39,113 INFO L933 BasicCegarLoop]: 3520 mSDtfsCounter, 5696 mSDsluCounter, 5700 mSDsCounter, 0 mSdLazyCounter, 3434 mSolverCounterSat, 4064 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6002 SdHoareTripleChecker+Valid, 9220 SdHoareTripleChecker+Invalid, 7501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4064 IncrementalHoareTripleChecker+Valid, 3434 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2021-11-17 00:40:39,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6002 Valid, 9220 Invalid, 7501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4064 Valid, 3434 Invalid, 3 Unknown, 0 Unchecked, 28.2s Time] [2021-11-17 00:40:39,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4945 states. [2021-11-17 00:40:39,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4945 to 4135. [2021-11-17 00:40:39,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 2556 states have (on average 1.3090766823161188) internal successors, (3346), 2648 states have internal predecessors, (3346), 1332 states have call successors, (1332), 247 states have call predecessors, (1332), 246 states have return successors, (1331), 1301 states have call predecessors, (1331), 1331 states have call successors, (1331) [2021-11-17 00:40:39,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 6009 transitions. [2021-11-17 00:40:39,405 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 6009 transitions. Word has length 72 [2021-11-17 00:40:39,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:40:39,408 INFO L470 AbstractCegarLoop]: Abstraction has 4135 states and 6009 transitions. [2021-11-17 00:40:39,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-17 00:40:39,409 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 6009 transitions. [2021-11-17 00:40:39,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-17 00:40:39,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:40:39,416 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:40:39,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 00:40:39,417 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:40:39,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:40:39,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1876306375, now seen corresponding path program 1 times [2021-11-17 00:40:39,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:40:39,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148631555] [2021-11-17 00:40:39,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:40:39,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:40:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:40:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:39,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:40:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:39,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:40:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:40:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:39,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:40:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:40:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:39,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:40:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:39,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:40:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:40,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:40:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:40,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:40:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:40:40,071 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-17 00:40:40,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:40:40,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148631555] [2021-11-17 00:40:40,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148631555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:40:40,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:40:40,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 00:40:40,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349687621] [2021-11-17 00:40:40,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:40:40,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 00:40:40,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:40:40,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 00:40:40,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 00:40:40,074 INFO L87 Difference]: Start difference. First operand 4135 states and 6009 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 00:40:42,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:40:44,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:40:51,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:41:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:41:16,247 INFO L93 Difference]: Finished difference Result 13970 states and 21252 transitions. [2021-11-17 00:41:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 00:41:16,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 82 [2021-11-17 00:41:16,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:41:16,337 INFO L225 Difference]: With dead ends: 13970 [2021-11-17 00:41:16,337 INFO L226 Difference]: Without dead ends: 9851 [2021-11-17 00:41:16,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-17 00:41:16,371 INFO L933 BasicCegarLoop]: 3663 mSDtfsCounter, 5703 mSDsluCounter, 12819 mSDsCounter, 0 mSdLazyCounter, 5168 mSolverCounterSat, 3940 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5996 SdHoareTripleChecker+Valid, 16482 SdHoareTripleChecker+Invalid, 9110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3940 IncrementalHoareTripleChecker+Valid, 5168 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2021-11-17 00:41:16,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5996 Valid, 16482 Invalid, 9110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3940 Valid, 5168 Invalid, 2 Unknown, 0 Unchecked, 34.9s Time] [2021-11-17 00:41:16,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9851 states. [2021-11-17 00:41:16,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9851 to 8429. [2021-11-17 00:41:16,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8429 states, 5226 states have (on average 1.3071182548794489) internal successors, (6831), 5408 states have internal predecessors, (6831), 2680 states have call successors, (2680), 493 states have call predecessors, (2680), 522 states have return successors, (2981), 2641 states have call predecessors, (2981), 2679 states have call successors, (2981) [2021-11-17 00:41:16,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8429 states to 8429 states and 12492 transitions. [2021-11-17 00:41:16,770 INFO L78 Accepts]: Start accepts. Automaton has 8429 states and 12492 transitions. Word has length 82 [2021-11-17 00:41:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:41:16,772 INFO L470 AbstractCegarLoop]: Abstraction has 8429 states and 12492 transitions. [2021-11-17 00:41:16,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 00:41:16,773 INFO L276 IsEmpty]: Start isEmpty. Operand 8429 states and 12492 transitions. [2021-11-17 00:41:16,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-17 00:41:16,798 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:41:16,799 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:41:16,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 00:41:16,799 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:41:16,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:41:16,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1891325115, now seen corresponding path program 1 times [2021-11-17 00:41:16,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:41:16,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605250924] [2021-11-17 00:41:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:41:16,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:41:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:41:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:41:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:41:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:41:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:41:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:41:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:41:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:41:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:41:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 00:41:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 00:41:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:41:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 00:41:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 00:41:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 00:41:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 00:41:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 00:41:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:41:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 00:41:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:41:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:41:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:41:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:41:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:41:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 00:41:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 00:41:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:17,559 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-11-17 00:41:17,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:41:17,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605250924] [2021-11-17 00:41:17,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605250924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:41:17,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:41:17,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 00:41:17,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806891020] [2021-11-17 00:41:17,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:41:17,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 00:41:17,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:41:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 00:41:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 00:41:17,563 INFO L87 Difference]: Start difference. First operand 8429 states and 12492 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 00:41:19,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:41:21,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:41:27,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:41:31,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:41:51,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:41:51,455 INFO L93 Difference]: Finished difference Result 27415 states and 41675 transitions. [2021-11-17 00:41:51,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 00:41:51,456 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 222 [2021-11-17 00:41:51,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:41:51,623 INFO L225 Difference]: With dead ends: 27415 [2021-11-17 00:41:51,624 INFO L226 Difference]: Without dead ends: 19008 [2021-11-17 00:41:51,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2021-11-17 00:41:51,680 INFO L933 BasicCegarLoop]: 4614 mSDtfsCounter, 5557 mSDsluCounter, 6490 mSDsCounter, 0 mSdLazyCounter, 4169 mSolverCounterSat, 4154 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5941 SdHoareTripleChecker+Valid, 11104 SdHoareTripleChecker+Invalid, 8327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4154 IncrementalHoareTripleChecker+Valid, 4169 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2021-11-17 00:41:51,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5941 Valid, 11104 Invalid, 8327 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4154 Valid, 4169 Invalid, 4 Unknown, 0 Unchecked, 32.7s Time] [2021-11-17 00:41:51,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19008 states. [2021-11-17 00:41:52,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19008 to 16209. [2021-11-17 00:41:52,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16209 states, 9962 states have (on average 1.3025496888175065) internal successors, (12976), 10310 states have internal predecessors, (12976), 5198 states have call successors, (5198), 981 states have call predecessors, (5198), 1048 states have return successors, (5775), 5129 states have call predecessors, (5775), 5197 states have call successors, (5775) [2021-11-17 00:41:52,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16209 states to 16209 states and 23949 transitions. [2021-11-17 00:41:52,508 INFO L78 Accepts]: Start accepts. Automaton has 16209 states and 23949 transitions. Word has length 222 [2021-11-17 00:41:52,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:41:52,508 INFO L470 AbstractCegarLoop]: Abstraction has 16209 states and 23949 transitions. [2021-11-17 00:41:52,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 00:41:52,509 INFO L276 IsEmpty]: Start isEmpty. Operand 16209 states and 23949 transitions. [2021-11-17 00:41:52,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-17 00:41:52,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:41:52,546 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:41:52,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 00:41:52,547 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:41:52,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:41:52,547 INFO L85 PathProgramCache]: Analyzing trace with hash -650068884, now seen corresponding path program 1 times [2021-11-17 00:41:52,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:41:52,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396753311] [2021-11-17 00:41:52,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:41:52,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:41:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:41:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:41:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:41:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:41:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:41:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:41:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:41:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:41:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:41:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:41:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 00:41:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 00:41:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 00:41:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 00:41:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 00:41:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 00:41:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 00:41:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 00:41:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:52,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:41:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 00:41:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-17 00:41:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 00:41:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:41:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:41:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:41:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:41:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 00:41:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-17 00:41:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:41:53,250 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-17 00:41:53,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:41:53,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396753311] [2021-11-17 00:41:53,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396753311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:41:53,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:41:53,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 00:41:53,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423944648] [2021-11-17 00:41:53,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:41:53,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 00:41:53,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:41:53,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 00:41:53,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 00:41:53,253 INFO L87 Difference]: Start difference. First operand 16209 states and 23949 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 00:41:55,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:41:57,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:42:01,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:42:14,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:42:14,598 INFO L93 Difference]: Finished difference Result 30348 states and 45637 transitions. [2021-11-17 00:42:14,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 00:42:14,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 245 [2021-11-17 00:42:14,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:42:14,719 INFO L225 Difference]: With dead ends: 30348 [2021-11-17 00:42:14,720 INFO L226 Difference]: Without dead ends: 14160 [2021-11-17 00:42:14,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-17 00:42:14,804 INFO L933 BasicCegarLoop]: 2959 mSDtfsCounter, 2059 mSDsluCounter, 5147 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 2544 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 8106 SdHoareTripleChecker+Invalid, 4926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2544 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-11-17 00:42:14,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2180 Valid, 8106 Invalid, 4926 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2544 Valid, 2380 Invalid, 2 Unknown, 0 Unchecked, 20.4s Time] [2021-11-17 00:42:14,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14160 states. [2021-11-17 00:42:15,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14160 to 12065. [2021-11-17 00:42:15,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12065 states, 7396 states have (on average 1.2996214169821525) internal successors, (9612), 7652 states have internal predecessors, (9612), 3875 states have call successors, (3875), 743 states have call predecessors, (3875), 793 states have return successors, (4300), 3824 states have call predecessors, (4300), 3874 states have call successors, (4300) [2021-11-17 00:42:15,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12065 states to 12065 states and 17787 transitions. [2021-11-17 00:42:15,454 INFO L78 Accepts]: Start accepts. Automaton has 12065 states and 17787 transitions. Word has length 245 [2021-11-17 00:42:15,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:42:15,455 INFO L470 AbstractCegarLoop]: Abstraction has 12065 states and 17787 transitions. [2021-11-17 00:42:15,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 00:42:15,455 INFO L276 IsEmpty]: Start isEmpty. Operand 12065 states and 17787 transitions. [2021-11-17 00:42:15,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-17 00:42:15,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:42:15,480 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:42:15,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 00:42:15,480 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:42:15,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:42:15,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1816258702, now seen corresponding path program 1 times [2021-11-17 00:42:15,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:42:15,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781699481] [2021-11-17 00:42:15,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:42:15,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:42:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:42:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:42:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:42:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:42:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:42:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:42:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:42:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:42:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:42:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:42:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:42:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:42:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 00:42:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 00:42:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 00:42:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 00:42:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 00:42:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 00:42:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 00:42:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:42:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:42:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:15,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:42:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 00:42:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:42:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:42:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:42:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:42:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:42:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 00:42:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:16,195 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-11-17 00:42:16,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:42:16,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781699481] [2021-11-17 00:42:16,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781699481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:42:16,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:42:16,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 00:42:16,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200281740] [2021-11-17 00:42:16,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:42:16,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 00:42:16,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:42:16,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 00:42:16,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 00:42:16,197 INFO L87 Difference]: Start difference. First operand 12065 states and 17787 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 00:42:18,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:42:20,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:42:22,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:42:33,667 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:42:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:42:54,525 INFO L93 Difference]: Finished difference Result 26923 states and 40819 transitions. [2021-11-17 00:42:54,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 00:42:54,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 250 [2021-11-17 00:42:54,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:42:54,675 INFO L225 Difference]: With dead ends: 26923 [2021-11-17 00:42:54,675 INFO L226 Difference]: Without dead ends: 18767 [2021-11-17 00:42:54,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2021-11-17 00:42:54,722 INFO L933 BasicCegarLoop]: 4915 mSDtfsCounter, 4739 mSDsluCounter, 6826 mSDsCounter, 0 mSdLazyCounter, 4435 mSolverCounterSat, 2931 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5117 SdHoareTripleChecker+Valid, 11741 SdHoareTripleChecker+Invalid, 7370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2931 IncrementalHoareTripleChecker+Valid, 4435 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.0s IncrementalHoareTripleChecker+Time [2021-11-17 00:42:54,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5117 Valid, 11741 Invalid, 7370 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2931 Valid, 4435 Invalid, 4 Unknown, 0 Unchecked, 37.0s Time] [2021-11-17 00:42:54,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18767 states. [2021-11-17 00:42:55,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18767 to 15978. [2021-11-17 00:42:55,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15978 states, 9789 states have (on average 1.2996220247216264) internal successors, (12722), 10127 states have internal predecessors, (12722), 5134 states have call successors, (5134), 987 states have call predecessors, (5134), 1054 states have return successors, (5695), 5067 states have call predecessors, (5695), 5133 states have call successors, (5695) [2021-11-17 00:42:55,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15978 states to 15978 states and 23551 transitions. [2021-11-17 00:42:55,566 INFO L78 Accepts]: Start accepts. Automaton has 15978 states and 23551 transitions. Word has length 250 [2021-11-17 00:42:55,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:42:55,567 INFO L470 AbstractCegarLoop]: Abstraction has 15978 states and 23551 transitions. [2021-11-17 00:42:55,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 00:42:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 15978 states and 23551 transitions. [2021-11-17 00:42:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-17 00:42:55,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:42:55,596 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:42:55,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 00:42:55,597 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:42:55,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:42:55,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1869005220, now seen corresponding path program 1 times [2021-11-17 00:42:55,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:42:55,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304984408] [2021-11-17 00:42:55,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:42:55,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:42:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:55,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:42:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:55,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:42:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:55,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:42:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:55,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:42:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:55,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:42:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:55,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:42:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:55,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:42:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:55,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:42:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:55,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:42:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:42:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 00:42:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:42:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 00:42:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 00:42:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 00:42:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 00:42:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:42:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:42:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:56,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:57,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:42:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:57,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:42:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:57,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:57,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:42:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:57,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:57,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:42:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:57,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 00:42:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:57,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:42:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:57,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:42:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:57,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 00:42:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:42:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-11-17 00:42:57,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:42:57,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304984408] [2021-11-17 00:42:57,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304984408] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:42:57,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:42:57,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-17 00:42:57,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431885945] [2021-11-17 00:42:57,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:42:57,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-17 00:42:57,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:42:57,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-17 00:42:57,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-17 00:42:57,286 INFO L87 Difference]: Start difference. First operand 15978 states and 23551 transitions. Second operand has 15 states, 14 states have (on average 8.5) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (32), 8 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-17 00:42:59,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:43:01,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:44:19,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:44:19,086 INFO L93 Difference]: Finished difference Result 44297 states and 67914 transitions. [2021-11-17 00:44:19,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 00:44:19,086 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.5) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (32), 8 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 213 [2021-11-17 00:44:19,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:44:19,343 INFO L225 Difference]: With dead ends: 44297 [2021-11-17 00:44:19,343 INFO L226 Difference]: Without dead ends: 28341 [2021-11-17 00:44:19,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=293, Invalid=829, Unknown=0, NotChecked=0, Total=1122 [2021-11-17 00:44:19,427 INFO L933 BasicCegarLoop]: 3502 mSDtfsCounter, 4422 mSDsluCounter, 25282 mSDsCounter, 0 mSdLazyCounter, 14008 mSolverCounterSat, 2421 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4819 SdHoareTripleChecker+Valid, 28784 SdHoareTripleChecker+Invalid, 16431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2421 IncrementalHoareTripleChecker+Valid, 14008 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.4s IncrementalHoareTripleChecker+Time [2021-11-17 00:44:19,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4819 Valid, 28784 Invalid, 16431 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2421 Valid, 14008 Invalid, 2 Unknown, 0 Unchecked, 76.4s Time] [2021-11-17 00:44:19,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28341 states. [2021-11-17 00:44:20,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28341 to 23779. [2021-11-17 00:44:20,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23779 states, 14535 states have (on average 1.2934296525627795) internal successors, (18800), 15029 states have internal predecessors, (18800), 7611 states have call successors, (7611), 1477 states have call predecessors, (7611), 1632 states have return successors, (9012), 7554 states have call predecessors, (9012), 7610 states have call successors, (9012) [2021-11-17 00:44:20,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23779 states to 23779 states and 35423 transitions. [2021-11-17 00:44:20,702 INFO L78 Accepts]: Start accepts. Automaton has 23779 states and 35423 transitions. Word has length 213 [2021-11-17 00:44:20,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:44:20,703 INFO L470 AbstractCegarLoop]: Abstraction has 23779 states and 35423 transitions. [2021-11-17 00:44:20,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.5) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (32), 8 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-17 00:44:20,703 INFO L276 IsEmpty]: Start isEmpty. Operand 23779 states and 35423 transitions. [2021-11-17 00:44:20,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-11-17 00:44:20,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:44:20,721 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:44:20,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 00:44:20,721 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:44:20,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:44:20,722 INFO L85 PathProgramCache]: Analyzing trace with hash 791755855, now seen corresponding path program 1 times [2021-11-17 00:44:20,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:44:20,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872788284] [2021-11-17 00:44:20,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:44:20,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:44:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:44:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:44:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:44:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:44:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:44:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:44:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:44:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:44:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:44:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:44:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:44:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:44:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 00:44:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 00:44:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 00:44:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 00:44:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:44:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 00:44:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:44:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 00:44:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 00:44:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 00:44:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:44:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 00:44:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-17 00:44:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 00:44:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:44:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:44:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:44:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:44:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:44:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:44:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:44:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 00:44:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:44:21,622 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-17 00:44:21,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:44:21,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872788284] [2021-11-17 00:44:21,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872788284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:44:21,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:44:21,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 00:44:21,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741215877] [2021-11-17 00:44:21,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:44:21,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 00:44:21,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:44:21,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 00:44:21,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-17 00:44:21,623 INFO L87 Difference]: Start difference. First operand 23779 states and 35423 transitions. Second operand has 8 states, 8 states have (on average 18.625) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-17 00:44:23,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:44:25,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:44:28,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:44:30,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:44:35,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:45:22,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:45:22,652 INFO L93 Difference]: Finished difference Result 60613 states and 92271 transitions. [2021-11-17 00:45:22,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 00:45:22,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.625) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 264 [2021-11-17 00:45:22,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:45:23,019 INFO L225 Difference]: With dead ends: 60613 [2021-11-17 00:45:23,019 INFO L226 Difference]: Without dead ends: 37235 [2021-11-17 00:45:23,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-17 00:45:23,158 INFO L933 BasicCegarLoop]: 5655 mSDtfsCounter, 3875 mSDsluCounter, 14034 mSDsCounter, 0 mSdLazyCounter, 7753 mSolverCounterSat, 1731 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4211 SdHoareTripleChecker+Valid, 19689 SdHoareTripleChecker+Invalid, 9489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1731 IncrementalHoareTripleChecker+Valid, 7753 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.6s IncrementalHoareTripleChecker+Time [2021-11-17 00:45:23,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4211 Valid, 19689 Invalid, 9489 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1731 Valid, 7753 Invalid, 5 Unknown, 0 Unchecked, 58.6s Time] [2021-11-17 00:45:23,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37235 states. [2021-11-17 00:45:24,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37235 to 23787. [2021-11-17 00:45:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23787 states, 14543 states have (on average 1.2932682390153338) internal successors, (18808), 15037 states have internal predecessors, (18808), 7611 states have call successors, (7611), 1477 states have call predecessors, (7611), 1632 states have return successors, (9012), 7554 states have call predecessors, (9012), 7610 states have call successors, (9012) [2021-11-17 00:45:24,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23787 states to 23787 states and 35431 transitions. [2021-11-17 00:45:24,593 INFO L78 Accepts]: Start accepts. Automaton has 23787 states and 35431 transitions. Word has length 264 [2021-11-17 00:45:24,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:45:24,593 INFO L470 AbstractCegarLoop]: Abstraction has 23787 states and 35431 transitions. [2021-11-17 00:45:24,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.625) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-17 00:45:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 23787 states and 35431 transitions. [2021-11-17 00:45:24,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-17 00:45:24,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:45:24,607 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:45:24,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 00:45:24,607 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:45:24,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:45:24,607 INFO L85 PathProgramCache]: Analyzing trace with hash -920774360, now seen corresponding path program 1 times [2021-11-17 00:45:24,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:45:24,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587531777] [2021-11-17 00:45:24,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:45:24,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:45:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:24,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:45:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:24,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:45:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:24,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:45:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:24,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:45:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:24,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:45:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:24,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:45:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:24,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:45:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:24,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:45:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:45:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:45:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:45:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:45:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 00:45:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:45:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 00:45:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 00:45:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 00:45:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:45:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 00:45:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 00:45:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 00:45:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 00:45:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 00:45:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:45:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 00:45:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:45:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:45:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:45:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:45:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:45:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:45:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:45:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:45:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:45:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 00:45:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:45:25,536 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-17 00:45:25,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:45:25,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587531777] [2021-11-17 00:45:25,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587531777] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:45:25,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:45:25,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 00:45:25,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352132202] [2021-11-17 00:45:25,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:45:25,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 00:45:25,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:45:25,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 00:45:25,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-17 00:45:25,538 INFO L87 Difference]: Start difference. First operand 23787 states and 35431 transitions. Second operand has 9 states, 9 states have (on average 16.77777777777778) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 00:45:27,578 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:45:29,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:45:40,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:46:18,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:46:18,398 INFO L93 Difference]: Finished difference Result 61179 states and 93369 transitions. [2021-11-17 00:46:18,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 00:46:18,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.77777777777778) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 268 [2021-11-17 00:46:18,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:46:18,724 INFO L225 Difference]: With dead ends: 61179 [2021-11-17 00:46:18,724 INFO L226 Difference]: Without dead ends: 37793 [2021-11-17 00:46:18,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-11-17 00:46:18,845 INFO L933 BasicCegarLoop]: 5622 mSDtfsCounter, 4536 mSDsluCounter, 14844 mSDsCounter, 0 mSdLazyCounter, 7016 mSolverCounterSat, 2908 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4894 SdHoareTripleChecker+Valid, 20466 SdHoareTripleChecker+Invalid, 9926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2908 IncrementalHoareTripleChecker+Valid, 7016 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.1s IncrementalHoareTripleChecker+Time [2021-11-17 00:46:18,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4894 Valid, 20466 Invalid, 9926 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2908 Valid, 7016 Invalid, 2 Unknown, 0 Unchecked, 50.1s Time] [2021-11-17 00:46:18,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37793 states. [2021-11-17 00:46:20,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37793 to 23787. [2021-11-17 00:46:20,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23787 states, 14543 states have (on average 1.2932682390153338) internal successors, (18808), 15037 states have internal predecessors, (18808), 7611 states have call successors, (7611), 1477 states have call predecessors, (7611), 1632 states have return successors, (9012), 7554 states have call predecessors, (9012), 7610 states have call successors, (9012) [2021-11-17 00:46:20,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23787 states to 23787 states and 35431 transitions. [2021-11-17 00:46:20,210 INFO L78 Accepts]: Start accepts. Automaton has 23787 states and 35431 transitions. Word has length 268 [2021-11-17 00:46:20,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:46:20,211 INFO L470 AbstractCegarLoop]: Abstraction has 23787 states and 35431 transitions. [2021-11-17 00:46:20,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.77777777777778) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 00:46:20,211 INFO L276 IsEmpty]: Start isEmpty. Operand 23787 states and 35431 transitions. [2021-11-17 00:46:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-17 00:46:20,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:46:20,226 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:46:20,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 00:46:20,227 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:46:20,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:46:20,227 INFO L85 PathProgramCache]: Analyzing trace with hash 571978521, now seen corresponding path program 1 times [2021-11-17 00:46:20,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:46:20,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759034316] [2021-11-17 00:46:20,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:46:20,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:46:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:20,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:46:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:20,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:46:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:20,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:46:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:20,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:46:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:46:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:20,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:46:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:20,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:46:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:20,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:46:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:46:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:46:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:46:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:46:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 00:46:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:46:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 00:46:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 00:46:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 00:46:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 00:46:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 00:46:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:46:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 00:46:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 00:46:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 00:46:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 00:46:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 00:46:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:46:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 00:46:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-17 00:46:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 00:46:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:46:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:46:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:46:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:46:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:46:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:46:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:46:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 00:46:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:46:21,826 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-17 00:46:21,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:46:21,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759034316] [2021-11-17 00:46:21,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759034316] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:46:21,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:46:21,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 00:46:21,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280431841] [2021-11-17 00:46:21,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:46:21,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 00:46:21,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:46:21,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 00:46:21,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-17 00:46:21,828 INFO L87 Difference]: Start difference. First operand 23787 states and 35431 transitions. Second operand has 10 states, 10 states have (on average 16.9) internal successors, (169), 5 states have internal predecessors, (169), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 00:46:23,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:46:26,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:46:28,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:46:31,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:46:33,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:46:53,759 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:46:56,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:46:59,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:47:11,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:47:11,006 INFO L93 Difference]: Finished difference Result 56793 states and 87261 transitions. [2021-11-17 00:47:11,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 00:47:11,006 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.9) internal successors, (169), 5 states have internal predecessors, (169), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 290 [2021-11-17 00:47:11,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:47:11,307 INFO L225 Difference]: With dead ends: 56793 [2021-11-17 00:47:11,307 INFO L226 Difference]: Without dead ends: 33407 [2021-11-17 00:47:11,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-17 00:47:11,428 INFO L933 BasicCegarLoop]: 3646 mSDtfsCounter, 3459 mSDsluCounter, 13870 mSDsCounter, 0 mSdLazyCounter, 5241 mSolverCounterSat, 2518 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3742 SdHoareTripleChecker+Valid, 17516 SdHoareTripleChecker+Invalid, 7764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2518 IncrementalHoareTripleChecker+Valid, 5241 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.1s IncrementalHoareTripleChecker+Time [2021-11-17 00:47:11,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3742 Valid, 17516 Invalid, 7764 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2518 Valid, 5241 Invalid, 5 Unknown, 0 Unchecked, 47.1s Time] [2021-11-17 00:47:11,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33407 states. [2021-11-17 00:47:12,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33407 to 23803. [2021-11-17 00:47:12,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23803 states, 14559 states have (on average 1.2929459440895665) internal successors, (18824), 15053 states have internal predecessors, (18824), 7611 states have call successors, (7611), 1477 states have call predecessors, (7611), 1632 states have return successors, (9012), 7554 states have call predecessors, (9012), 7610 states have call successors, (9012) [2021-11-17 00:47:12,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23803 states to 23803 states and 35447 transitions. [2021-11-17 00:47:12,762 INFO L78 Accepts]: Start accepts. Automaton has 23803 states and 35447 transitions. Word has length 290 [2021-11-17 00:47:12,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:47:12,762 INFO L470 AbstractCegarLoop]: Abstraction has 23803 states and 35447 transitions. [2021-11-17 00:47:12,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.9) internal successors, (169), 5 states have internal predecessors, (169), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 00:47:12,763 INFO L276 IsEmpty]: Start isEmpty. Operand 23803 states and 35447 transitions. [2021-11-17 00:47:12,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-11-17 00:47:12,777 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:47:12,777 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:47:12,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 00:47:12,778 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:47:12,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:47:12,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1440785741, now seen corresponding path program 1 times [2021-11-17 00:47:12,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:47:12,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117029114] [2021-11-17 00:47:12,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:47:12,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:47:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:47:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:47:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:47:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:47:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:47:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:47:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:47:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:47:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:47:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:47:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:47:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:47:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 00:47:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:47:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 00:47:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 00:47:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:47:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 00:47:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 00:47:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:47:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 00:47:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 00:47:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 00:47:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 00:47:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 00:47:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:47:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 00:47:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:47:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:47:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:47:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:47:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:47:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:47:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:47:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:47:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:13,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:47:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:14,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 00:47:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2021-11-17 00:47:14,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:47:14,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117029114] [2021-11-17 00:47:14,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117029114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:47:14,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:47:14,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 00:47:14,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706340620] [2021-11-17 00:47:14,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:47:14,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 00:47:14,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:47:14,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 00:47:14,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-17 00:47:14,133 INFO L87 Difference]: Start difference. First operand 23803 states and 35447 transitions. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (38), 7 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 00:47:16,174 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:47:18,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:47:20,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:47:26,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:47:57,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:47:57,806 INFO L93 Difference]: Finished difference Result 51559 states and 79323 transitions. [2021-11-17 00:47:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 00:47:57,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (38), 7 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 288 [2021-11-17 00:47:57,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:47:58,067 INFO L225 Difference]: With dead ends: 51559 [2021-11-17 00:47:58,068 INFO L226 Difference]: Without dead ends: 28157 [2021-11-17 00:47:58,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-11-17 00:47:58,213 INFO L933 BasicCegarLoop]: 2952 mSDtfsCounter, 1547 mSDsluCounter, 12822 mSDsCounter, 0 mSdLazyCounter, 5533 mSolverCounterSat, 1753 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 15774 SdHoareTripleChecker+Invalid, 7290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1753 IncrementalHoareTripleChecker+Valid, 5533 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.7s IncrementalHoareTripleChecker+Time [2021-11-17 00:47:58,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1703 Valid, 15774 Invalid, 7290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1753 Valid, 5533 Invalid, 4 Unknown, 0 Unchecked, 41.7s Time] [2021-11-17 00:47:58,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28157 states. [2021-11-17 00:47:59,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28157 to 23803. [2021-11-17 00:47:59,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23803 states, 14547 states have (on average 1.2915377741115006) internal successors, (18788), 15047 states have internal predecessors, (18788), 7611 states have call successors, (7611), 1477 states have call predecessors, (7611), 1644 states have return successors, (9039), 7560 states have call predecessors, (9039), 7610 states have call successors, (9039) [2021-11-17 00:47:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23803 states to 23803 states and 35438 transitions. [2021-11-17 00:47:59,458 INFO L78 Accepts]: Start accepts. Automaton has 23803 states and 35438 transitions. Word has length 288 [2021-11-17 00:47:59,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:47:59,459 INFO L470 AbstractCegarLoop]: Abstraction has 23803 states and 35438 transitions. [2021-11-17 00:47:59,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (38), 7 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 00:47:59,459 INFO L276 IsEmpty]: Start isEmpty. Operand 23803 states and 35438 transitions. [2021-11-17 00:47:59,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-11-17 00:47:59,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:47:59,478 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:47:59,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 00:47:59,478 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:47:59,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:47:59,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1986243400, now seen corresponding path program 1 times [2021-11-17 00:47:59,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:47:59,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825648891] [2021-11-17 00:47:59,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:47:59,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:47:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:47:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:47:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:47:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:47:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:47:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:47:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:47:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:47:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:47:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:47:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:47:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:47:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:47:59,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 00:47:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:48:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 00:48:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 00:48:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:48:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 00:48:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 00:48:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 00:48:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 00:48:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 00:48:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 00:48:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 00:48:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:48:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 00:48:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-17 00:48:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 00:48:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:48:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:48:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:48:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:48:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:48:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 00:48:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 00:48:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:00,487 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2021-11-17 00:48:00,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:48:00,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825648891] [2021-11-17 00:48:00,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825648891] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 00:48:00,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339096983] [2021-11-17 00:48:00,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:48:00,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 00:48:00,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 00:48:00,490 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) [2021-11-17 00:48:00,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 00:48:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:01,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 2967 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-17 00:48:01,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 00:48:03,036 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-11-17 00:48:03,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 00:48:03,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339096983] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:48:03,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 00:48:03,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-11-17 00:48:03,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583826818] [2021-11-17 00:48:03,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:48:03,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 00:48:03,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:48:03,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 00:48:03,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-11-17 00:48:03,038 INFO L87 Difference]: Start difference. First operand 23803 states and 35438 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-17 00:48:05,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:48:09,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:48:09,720 INFO L93 Difference]: Finished difference Result 56249 states and 83772 transitions. [2021-11-17 00:48:09,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 00:48:09,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 313 [2021-11-17 00:48:09,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:48:09,977 INFO L225 Difference]: With dead ends: 56249 [2021-11-17 00:48:09,977 INFO L226 Difference]: Without dead ends: 32847 [2021-11-17 00:48:10,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-11-17 00:48:10,083 INFO L933 BasicCegarLoop]: 5906 mSDtfsCounter, 4401 mSDsluCounter, 26013 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 343 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4401 SdHoareTripleChecker+Valid, 31919 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-17 00:48:10,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4401 Valid, 31919 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-11-17 00:48:10,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32847 states. [2021-11-17 00:48:11,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32847 to 23811. [2021-11-17 00:48:11,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23811 states, 14553 states have (on average 1.2908678622964338) internal successors, (18786), 15051 states have internal predecessors, (18786), 7613 states have call successors, (7613), 1477 states have call predecessors, (7613), 1644 states have return successors, (9041), 7562 states have call predecessors, (9041), 7612 states have call successors, (9041) [2021-11-17 00:48:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23811 states to 23811 states and 35440 transitions. [2021-11-17 00:48:11,396 INFO L78 Accepts]: Start accepts. Automaton has 23811 states and 35440 transitions. Word has length 313 [2021-11-17 00:48:11,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:48:11,398 INFO L470 AbstractCegarLoop]: Abstraction has 23811 states and 35440 transitions. [2021-11-17 00:48:11,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-17 00:48:11,399 INFO L276 IsEmpty]: Start isEmpty. Operand 23811 states and 35440 transitions. [2021-11-17 00:48:11,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-11-17 00:48:11,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:48:11,442 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:48:11,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-17 00:48:11,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-17 00:48:11,658 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:48:11,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:48:11,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1814305491, now seen corresponding path program 1 times [2021-11-17 00:48:11,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:48:11,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228373997] [2021-11-17 00:48:11,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:48:11,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:48:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:48:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:48:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:48:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:48:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:48:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:48:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:48:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:48:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:48:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:48:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:48:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:48:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 00:48:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:48:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 00:48:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 00:48:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-17 00:48:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 00:48:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:12,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:48:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:48:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:48:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:48:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:48:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:48:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:48:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 00:48:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 00:48:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:48:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 00:48:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-17 00:48:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 00:48:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 00:48:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:48:13,257 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-17 00:48:13,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:48:13,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228373997] [2021-11-17 00:48:13,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228373997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:48:13,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:48:13,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 00:48:13,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133185462] [2021-11-17 00:48:13,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:48:13,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 00:48:13,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:48:13,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 00:48:13,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-17 00:48:13,258 INFO L87 Difference]: Start difference. First operand 23811 states and 35440 transitions. Second operand has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (40), 8 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 00:48:15,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:48:17,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:48:19,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:48:23,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:48:29,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:49:13,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:49:13,192 INFO L93 Difference]: Finished difference Result 62169 states and 94901 transitions. [2021-11-17 00:49:13,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 00:49:13,192 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (40), 8 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 309 [2021-11-17 00:49:13,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:49:13,593 INFO L225 Difference]: With dead ends: 62169 [2021-11-17 00:49:13,593 INFO L226 Difference]: Without dead ends: 38759 [2021-11-17 00:49:13,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2021-11-17 00:49:13,700 INFO L933 BasicCegarLoop]: 5968 mSDtfsCounter, 6220 mSDsluCounter, 18606 mSDsCounter, 0 mSdLazyCounter, 7593 mSolverCounterSat, 4991 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6631 SdHoareTripleChecker+Valid, 24574 SdHoareTripleChecker+Invalid, 12587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4991 IncrementalHoareTripleChecker+Valid, 7593 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.8s IncrementalHoareTripleChecker+Time [2021-11-17 00:49:13,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6631 Valid, 24574 Invalid, 12587 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4991 Valid, 7593 Invalid, 3 Unknown, 0 Unchecked, 56.8s Time] [2021-11-17 00:49:13,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38759 states. [2021-11-17 00:49:14,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38759 to 23799. [2021-11-17 00:49:14,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23799 states, 14543 states have (on average 1.2909303444956337) internal successors, (18774), 15043 states have internal predecessors, (18774), 7611 states have call successors, (7611), 1477 states have call predecessors, (7611), 1644 states have return successors, (9039), 7560 states have call predecessors, (9039), 7610 states have call successors, (9039) [2021-11-17 00:49:15,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23799 states to 23799 states and 35424 transitions. [2021-11-17 00:49:15,128 INFO L78 Accepts]: Start accepts. Automaton has 23799 states and 35424 transitions. Word has length 309 [2021-11-17 00:49:15,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:49:15,129 INFO L470 AbstractCegarLoop]: Abstraction has 23799 states and 35424 transitions. [2021-11-17 00:49:15,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (40), 8 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 00:49:15,129 INFO L276 IsEmpty]: Start isEmpty. Operand 23799 states and 35424 transitions. [2021-11-17 00:49:15,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-11-17 00:49:15,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:49:15,148 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:49:15,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 00:49:15,148 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:49:15,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:49:15,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1200798127, now seen corresponding path program 1 times [2021-11-17 00:49:15,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:49:15,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263213930] [2021-11-17 00:49:15,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:49:15,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:49:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:49:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:15,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:49:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:15,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:49:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:15,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:49:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:15,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:49:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:15,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:49:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:15,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:49:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:15,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:49:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:49:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:49:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:49:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:49:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 00:49:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:49:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 00:49:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 00:49:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-17 00:49:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 00:49:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:49:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:49:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:49:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:49:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:49:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:49:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:49:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 00:49:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 00:49:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:16,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:17,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 00:49:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:17,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-17 00:49:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:17,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 00:49:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:17,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 00:49:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-17 00:49:17,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:49:17,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263213930] [2021-11-17 00:49:17,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263213930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:49:17,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:49:17,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 00:49:17,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435877877] [2021-11-17 00:49:17,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:49:17,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 00:49:17,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:49:17,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 00:49:17,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-17 00:49:17,027 INFO L87 Difference]: Start difference. First operand 23799 states and 35424 transitions. Second operand has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (40), 8 states have call predecessors, (40), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 00:49:19,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:49:54,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:49:54,536 INFO L93 Difference]: Finished difference Result 53127 states and 81018 transitions. [2021-11-17 00:49:54,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 00:49:54,537 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (40), 8 states have call predecessors, (40), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 309 [2021-11-17 00:49:54,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:49:54,810 INFO L225 Difference]: With dead ends: 53127 [2021-11-17 00:49:54,810 INFO L226 Difference]: Without dead ends: 29729 [2021-11-17 00:49:54,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-17 00:49:54,927 INFO L933 BasicCegarLoop]: 3455 mSDtfsCounter, 2345 mSDsluCounter, 15264 mSDsCounter, 0 mSdLazyCounter, 5071 mSolverCounterSat, 1914 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2574 SdHoareTripleChecker+Valid, 18719 SdHoareTripleChecker+Invalid, 6986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1914 IncrementalHoareTripleChecker+Valid, 5071 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2021-11-17 00:49:54,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2574 Valid, 18719 Invalid, 6986 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1914 Valid, 5071 Invalid, 1 Unknown, 0 Unchecked, 35.3s Time] [2021-11-17 00:49:54,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29729 states. [2021-11-17 00:49:56,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29729 to 23819. [2021-11-17 00:49:56,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23819 states, 14559 states have (on average 1.2906106188611854) internal successors, (18790), 15059 states have internal predecessors, (18790), 7611 states have call successors, (7611), 1477 states have call predecessors, (7611), 1648 states have return successors, (9059), 7564 states have call predecessors, (9059), 7610 states have call successors, (9059) [2021-11-17 00:49:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23819 states to 23819 states and 35460 transitions. [2021-11-17 00:49:56,338 INFO L78 Accepts]: Start accepts. Automaton has 23819 states and 35460 transitions. Word has length 309 [2021-11-17 00:49:56,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:49:56,339 INFO L470 AbstractCegarLoop]: Abstraction has 23819 states and 35460 transitions. [2021-11-17 00:49:56,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (40), 8 states have call predecessors, (40), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 00:49:56,339 INFO L276 IsEmpty]: Start isEmpty. Operand 23819 states and 35460 transitions. [2021-11-17 00:49:56,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-17 00:49:56,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:49:56,358 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:49:56,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 00:49:56,359 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:49:56,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:49:56,359 INFO L85 PathProgramCache]: Analyzing trace with hash 481696435, now seen corresponding path program 1 times [2021-11-17 00:49:56,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:49:56,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336405439] [2021-11-17 00:49:56,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:49:56,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:49:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:49:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:49:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:49:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:49:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:49:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:49:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:49:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:49:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:49:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:49:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:49:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:49:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 00:49:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:49:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:49:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:49:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 00:49:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 00:49:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:49:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 00:49:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 00:49:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:49:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:49:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:49:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:49:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:49:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:49:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:49:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 00:49:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 00:49:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:49:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 00:49:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 00:49:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 00:49:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 00:49:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:49:57,394 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-17 00:49:57,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:49:57,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336405439] [2021-11-17 00:49:57,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336405439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:49:57,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:49:57,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 00:49:57,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752161112] [2021-11-17 00:49:57,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:49:57,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 00:49:57,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:49:57,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 00:49:57,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-17 00:49:57,396 INFO L87 Difference]: Start difference. First operand 23819 states and 35460 transitions. Second operand has 9 states, 9 states have (on average 19.333333333333332) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (43), 8 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-17 00:49:59,437 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:50:03,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:50:06,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:50:31,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:50:31,593 INFO L93 Difference]: Finished difference Result 51579 states and 78498 transitions. [2021-11-17 00:50:31,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 00:50:31,594 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.333333333333332) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (43), 8 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 329 [2021-11-17 00:50:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:50:31,814 INFO L225 Difference]: With dead ends: 51579 [2021-11-17 00:50:31,815 INFO L226 Difference]: Without dead ends: 28161 [2021-11-17 00:50:31,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-17 00:50:31,921 INFO L933 BasicCegarLoop]: 2948 mSDtfsCounter, 1548 mSDsluCounter, 7599 mSDsCounter, 0 mSdLazyCounter, 4081 mSolverCounterSat, 1768 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 10547 SdHoareTripleChecker+Invalid, 5851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1768 IncrementalHoareTripleChecker+Valid, 4081 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2021-11-17 00:50:31,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1701 Valid, 10547 Invalid, 5851 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1768 Valid, 4081 Invalid, 2 Unknown, 0 Unchecked, 32.4s Time] [2021-11-17 00:50:31,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28161 states. [2021-11-17 00:50:33,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28161 to 23827. [2021-11-17 00:50:33,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23827 states, 14567 states have (on average 1.290451019427473) internal successors, (18798), 15067 states have internal predecessors, (18798), 7611 states have call successors, (7611), 1477 states have call predecessors, (7611), 1648 states have return successors, (9059), 7564 states have call predecessors, (9059), 7610 states have call successors, (9059) [2021-11-17 00:50:33,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23827 states to 23827 states and 35468 transitions. [2021-11-17 00:50:33,240 INFO L78 Accepts]: Start accepts. Automaton has 23827 states and 35468 transitions. Word has length 329 [2021-11-17 00:50:33,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:50:33,241 INFO L470 AbstractCegarLoop]: Abstraction has 23827 states and 35468 transitions. [2021-11-17 00:50:33,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.333333333333332) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (43), 8 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-17 00:50:33,241 INFO L276 IsEmpty]: Start isEmpty. Operand 23827 states and 35468 transitions. [2021-11-17 00:50:33,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-11-17 00:50:33,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:50:33,259 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:50:33,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 00:50:33,260 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:50:33,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:50:33,260 INFO L85 PathProgramCache]: Analyzing trace with hash 399946514, now seen corresponding path program 1 times [2021-11-17 00:50:33,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:50:33,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910062492] [2021-11-17 00:50:33,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:50:33,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:50:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:50:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:50:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:50:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:50:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:50:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:50:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:50:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:50:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 00:50:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 00:50:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 00:50:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 00:50:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 00:50:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:50:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:50:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:50:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:50:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 00:50:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 00:50:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:50:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 00:50:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:33,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:50:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:50:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 00:50:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 00:50:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:50:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:50:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 00:50:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:50:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:50:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 00:50:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:50:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:50:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 00:50:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:50:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:50:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 00:50:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 00:50:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:50:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:50:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 00:50:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 00:50:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 00:50:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 00:50:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:34,508 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-17 00:50:34,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:50:34,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910062492] [2021-11-17 00:50:34,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910062492] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 00:50:34,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511339191] [2021-11-17 00:50:34,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:50:34,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 00:50:34,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 00:50:34,510 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) [2021-11-17 00:50:34,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 00:50:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:50:35,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 3318 conjuncts, 129 conjunts are in the unsatisfiable core [2021-11-17 00:50:35,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 00:50:39,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:39,412 INFO L244 Elim1Store]: Index analysis took 145 ms [2021-11-17 00:50:39,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 30 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 55 [2021-11-17 00:50:40,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:40,729 INFO L244 Elim1Store]: Index analysis took 113 ms [2021-11-17 00:50:41,072 INFO L354 Elim1Store]: treesize reduction 214, result has 22.5 percent of original size [2021-11-17 00:50:41,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 95 treesize of output 85 [2021-11-17 00:50:41,644 INFO L354 Elim1Store]: treesize reduction 180, result has 0.6 percent of original size [2021-11-17 00:50:41,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 62 treesize of output 26 [2021-11-17 00:50:43,850 WARN L860 $PredicateComparison]: unable to prove that (exists ((INIT_LIST_HEAD_~list.offset Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_$Pointer$.offset)| |c_INIT_LIST_HEAD_#in~list.base|) INIT_LIST_HEAD_~list.offset INIT_LIST_HEAD_~list.offset) (+ 8 INIT_LIST_HEAD_~list.offset) INIT_LIST_HEAD_~list.offset))) (<= INIT_LIST_HEAD_~list.offset |c_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2021-11-17 00:50:43,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:43,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:44,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:44,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:44,475 INFO L354 Elim1Store]: treesize reduction 344, result has 15.3 percent of original size [2021-11-17 00:50:44,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 76 treesize of output 94 [2021-11-17 00:50:47,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:47,154 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-11-17 00:50:47,264 INFO L354 Elim1Store]: treesize reduction 188, result has 8.3 percent of original size [2021-11-17 00:50:47,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 109 [2021-11-17 00:50:49,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:49,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:49,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:49,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:49,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:49,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:49,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:49,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:49,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:49,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:50,463 INFO L244 Elim1Store]: Index analysis took 517 ms [2021-11-17 00:50:52,018 INFO L354 Elim1Store]: treesize reduction 1222, result has 16.1 percent of original size [2021-11-17 00:50:52,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 92 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 142 treesize of output 270 [2021-11-17 00:50:52,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:52,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:53,468 INFO L244 Elim1Store]: Index analysis took 580 ms [2021-11-17 00:50:53,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 109 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 160 [2021-11-17 00:50:54,148 INFO L354 Elim1Store]: treesize reduction 660, result has 0.2 percent of original size [2021-11-17 00:50:54,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 107 treesize of output 41 [2021-11-17 00:50:54,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:54,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 00:50:55,056 INFO L244 Elim1Store]: Index analysis took 283 ms [2021-11-17 00:50:55,565 INFO L354 Elim1Store]: treesize reduction 352, result has 22.1 percent of original size [2021-11-17 00:50:55,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 56 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 11 case distinctions, treesize of input 122 treesize of output 136 [2021-11-17 00:50:56,222 INFO L354 Elim1Store]: treesize reduction 660, result has 0.2 percent of original size [2021-11-17 00:50:56,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 116 treesize of output 44 [2021-11-17 00:50:57,335 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 191 proven. 20 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-11-17 00:50:57,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 00:50:59,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511339191] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 00:50:59,415 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 00:50:59,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 25] total 33 [2021-11-17 00:50:59,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347520306] [2021-11-17 00:50:59,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 00:50:59,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-17 00:50:59,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:50:59,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-17 00:50:59,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1088, Unknown=1, NotChecked=66, Total=1260 [2021-11-17 00:50:59,417 INFO L87 Difference]: Start difference. First operand 23827 states and 35468 transitions. Second operand has 33 states, 32 states have (on average 8.34375) internal successors, (267), 23 states have internal predecessors, (267), 11 states have call successors, (80), 10 states have call predecessors, (80), 9 states have return successors, (65), 11 states have call predecessors, (65), 11 states have call successors, (65) [2021-11-17 00:51:01,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:51:03,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:51:06,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:51:08,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:51:10,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:51:12,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:51:15,204 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:51:17,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:51:19,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:51:31,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:51:35,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:52:18,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:52:20,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:52:26,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15