./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4b03525ec5447375a01688a728ac5f10add5f84664db60bd75967c00682bdc6d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:50:13,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:50:13,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:50:13,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:50:13,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:50:13,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:50:13,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:50:13,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:50:13,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:50:13,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:50:13,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:50:13,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:50:13,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:50:13,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:50:13,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:50:13,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:50:13,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:50:13,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:50:13,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:50:13,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:50:13,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:50:13,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:50:13,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:50:13,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:50:13,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:50:13,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:50:13,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:50:13,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:50:13,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:50:13,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:50:13,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:50:13,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:50:13,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:50:13,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:50:13,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:50:13,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:50:13,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:50:13,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:50:13,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:50:13,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:50:13,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:50:13,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:50:13,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:50:13,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:50:13,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:50:13,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:50:13,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:50:13,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:50:13,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:50:13,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:50:13,661 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:50:13,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:50:13,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:50:13,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:50:13,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:50:13,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:50:13,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:50:13,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:50:13,663 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:50:13,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:50:13,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:50:13,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:50:13,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:50:13,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:50:13,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:50:13,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:50:13,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:50:13,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:50:13,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:50:13,665 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:50:13,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:50:13,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:50:13,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:50:13,666 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b03525ec5447375a01688a728ac5f10add5f84664db60bd75967c00682bdc6d [2021-12-22 14:50:13,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:50:13,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:50:13,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:50:13,881 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:50:13,882 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:50:13,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-22 14:50:13,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19a10402a/b9d8836dc1374729a5e2a2f2bc0c7b51/FLAGf6bdcb166 [2021-12-22 14:50:14,475 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:50:14,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-22 14:50:14,507 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19a10402a/b9d8836dc1374729a5e2a2f2bc0c7b51/FLAGf6bdcb166 [2021-12-22 14:50:14,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19a10402a/b9d8836dc1374729a5e2a2f2bc0c7b51 [2021-12-22 14:50:14,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:50:14,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:50:14,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:50:14,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:50:14,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:50:14,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:50:14" (1/1) ... [2021-12-22 14:50:14,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623f4458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:14, skipping insertion in model container [2021-12-22 14:50:14,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:50:14" (1/1) ... [2021-12-22 14:50:14,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:50:14,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:50:15,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i[212825,212838] [2021-12-22 14:50:15,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:50:15,872 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:50:16,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i[212825,212838] [2021-12-22 14:50:16,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:50:16,153 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:50:16,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16 WrapperNode [2021-12-22 14:50:16,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:50:16,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:50:16,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:50:16,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:50:16,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16" (1/1) ... [2021-12-22 14:50:16,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16" (1/1) ... [2021-12-22 14:50:16,339 INFO L137 Inliner]: procedures = 272, calls = 2460, calls flagged for inlining = 116, calls inlined = 95, statements flattened = 3935 [2021-12-22 14:50:16,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:50:16,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:50:16,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:50:16,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:50:16,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16" (1/1) ... [2021-12-22 14:50:16,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16" (1/1) ... [2021-12-22 14:50:16,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16" (1/1) ... [2021-12-22 14:50:16,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16" (1/1) ... [2021-12-22 14:50:16,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16" (1/1) ... [2021-12-22 14:50:16,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16" (1/1) ... [2021-12-22 14:50:16,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16" (1/1) ... [2021-12-22 14:50:16,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:50:16,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:50:16,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:50:16,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:50:16,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16" (1/1) ... [2021-12-22 14:50:16,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:50:16,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:50:16,511 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) [2021-12-22 14:50:16,518 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 [2021-12-22 14:50:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-22 14:50:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-22 14:50:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-22 14:50:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-22 14:50:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-22 14:50:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-22 14:50:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-22 14:50:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:50:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:50:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:50:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:50:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 14:50:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 14:50:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2021-12-22 14:50:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2021-12-22 14:50:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:50:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:50:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-12-22 14:50:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-12-22 14:50:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:50:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:50:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2021-12-22 14:50:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2021-12-22 14:50:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-12-22 14:50:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-12-22 14:50:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:50:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:50:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:50:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:50:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2021-12-22 14:50:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2021-12-22 14:50:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2021-12-22 14:50:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2021-12-22 14:50:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2021-12-22 14:50:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2021-12-22 14:50:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:50:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:50:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 14:50:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 14:50:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:50:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:50:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2021-12-22 14:50:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2021-12-22 14:50:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:50:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-12-22 14:50:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-12-22 14:50:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:50:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2021-12-22 14:50:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2021-12-22 14:50:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-22 14:50:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-22 14:50:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:50:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:50:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:50:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:50:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:50:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:50:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-22 14:50:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-22 14:50:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2021-12-22 14:50:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2021-12-22 14:50:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-12-22 14:50:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-12-22 14:50:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-22 14:50:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-22 14:50:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:50:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2021-12-22 14:50:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2021-12-22 14:50:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-22 14:50:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-22 14:50:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:50:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2021-12-22 14:50:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2021-12-22 14:50:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2021-12-22 14:50:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2021-12-22 14:50:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:50:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-22 14:50:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-22 14:50:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-12-22 14:50:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-12-22 14:50:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:50:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:50:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2021-12-22 14:50:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2021-12-22 14:50:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 14:50:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 14:50:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-22 14:50:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-22 14:50:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-22 14:50:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-22 14:50:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:50:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:50:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:50:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2021-12-22 14:50:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2021-12-22 14:50:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-12-22 14:50:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-12-22 14:50:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2021-12-22 14:50:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2021-12-22 14:50:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:50:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:50:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 14:50:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 14:50:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2021-12-22 14:50:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2021-12-22 14:50:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:50:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-22 14:50:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-22 14:50:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 14:50:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 14:50:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2021-12-22 14:50:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2021-12-22 14:50:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2021-12-22 14:50:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2021-12-22 14:50:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-22 14:50:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-22 14:50:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:50:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2021-12-22 14:50:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2021-12-22 14:50:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:50:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-12-22 14:50:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-12-22 14:50:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:50:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-12-22 14:50:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-12-22 14:50:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2021-12-22 14:50:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2021-12-22 14:50:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2021-12-22 14:50:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2021-12-22 14:50:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-22 14:50:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-22 14:50:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2021-12-22 14:50:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2021-12-22 14:50:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-12-22 14:50:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-12-22 14:50:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2021-12-22 14:50:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2021-12-22 14:50:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2021-12-22 14:50:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2021-12-22 14:50:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:50:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-22 14:50:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-22 14:50:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:50:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:50:17,013 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:50:17,014 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:50:17,343 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:50:21,147 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:50:21,166 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:50:21,166 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 14:50:21,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:50:21 BoogieIcfgContainer [2021-12-22 14:50:21,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:50:21,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:50:21,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:50:21,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:50:21,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:50:14" (1/3) ... [2021-12-22 14:50:21,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a53a5fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:50:21, skipping insertion in model container [2021-12-22 14:50:21,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:50:16" (2/3) ... [2021-12-22 14:50:21,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a53a5fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:50:21, skipping insertion in model container [2021-12-22 14:50:21,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:50:21" (3/3) ... [2021-12-22 14:50:21,175 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-22 14:50:21,178 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:50:21,178 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:50:21,213 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:50:21,217 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 [2021-12-22 14:50:21,217 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:50:21,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 1122 states, 777 states have (on average 1.3474903474903475) internal successors, (1047), 799 states have internal predecessors, (1047), 281 states have call successors, (281), 63 states have call predecessors, (281), 62 states have return successors, (274), 273 states have call predecessors, (274), 274 states have call successors, (274) [2021-12-22 14:50:21,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-22 14:50:21,261 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:50:21,262 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:50:21,262 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:50:21,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:50:21,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1817654723, now seen corresponding path program 1 times [2021-12-22 14:50:21,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:50:21,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552421358] [2021-12-22 14:50:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:50:21,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:50:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:50:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:50:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:50:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:50:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:50:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:21,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:50:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:50:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:50:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:50:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:50:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 14:50:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 14:50:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 14:50:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 14:50:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 14:50:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-22 14:50:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-22 14:50:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-22 14:50:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:22,219 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-12-22 14:50:22,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:50:22,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552421358] [2021-12-22 14:50:22,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552421358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:50:22,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:50:22,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:50:22,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360714654] [2021-12-22 14:50:22,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:50:22,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:50:22,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:50:22,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:50:22,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:50:22,263 INFO L87 Difference]: Start difference. First operand has 1122 states, 777 states have (on average 1.3474903474903475) internal successors, (1047), 799 states have internal predecessors, (1047), 281 states have call successors, (281), 63 states have call predecessors, (281), 62 states have return successors, (274), 273 states have call predecessors, (274), 274 states have call successors, (274) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-22 14:50:28,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:50:28,344 INFO L93 Difference]: Finished difference Result 2310 states and 3450 transitions. [2021-12-22 14:50:28,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:50:28,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 223 [2021-12-22 14:50:28,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:50:28,371 INFO L225 Difference]: With dead ends: 2310 [2021-12-22 14:50:28,372 INFO L226 Difference]: Without dead ends: 1179 [2021-12-22 14:50:28,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:50:28,383 INFO L933 BasicCegarLoop]: 1515 mSDtfsCounter, 476 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 685 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 2971 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:50:28,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 2971 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [685 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-12-22 14:50:28,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2021-12-22 14:50:28,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1108. [2021-12-22 14:50:28,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 772 states have (on average 1.3354922279792747) internal successors, (1031), 785 states have internal predecessors, (1031), 274 states have call successors, (274), 62 states have call predecessors, (274), 61 states have return successors, (267), 266 states have call predecessors, (267), 267 states have call successors, (267) [2021-12-22 14:50:28,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1572 transitions. [2021-12-22 14:50:28,508 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1572 transitions. Word has length 223 [2021-12-22 14:50:28,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:50:28,508 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1572 transitions. [2021-12-22 14:50:28,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-22 14:50:28,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1572 transitions. [2021-12-22 14:50:28,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-22 14:50:28,513 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:50:28,513 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:50:28,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:50:28,514 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:50:28,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:50:28,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1329529621, now seen corresponding path program 1 times [2021-12-22 14:50:28,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:50:28,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868731053] [2021-12-22 14:50:28,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:50:28,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:50:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:50:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:50:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:50:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:50:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:50:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:50:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:50:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:50:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:50:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:50:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 14:50:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 14:50:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 14:50:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 14:50:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 14:50:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-22 14:50:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:28,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-22 14:50:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:29,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-22 14:50:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:29,009 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-12-22 14:50:29,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:50:29,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868731053] [2021-12-22 14:50:29,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868731053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:50:29,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:50:29,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:50:29,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918544736] [2021-12-22 14:50:29,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:50:29,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:50:29,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:50:29,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:50:29,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:50:29,017 INFO L87 Difference]: Start difference. First operand 1108 states and 1572 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-22 14:50:37,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:50:37,868 INFO L93 Difference]: Finished difference Result 3305 states and 4749 transitions. [2021-12-22 14:50:37,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:50:37,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 223 [2021-12-22 14:50:37,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:50:37,879 INFO L225 Difference]: With dead ends: 3305 [2021-12-22 14:50:37,879 INFO L226 Difference]: Without dead ends: 2241 [2021-12-22 14:50:37,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:50:37,884 INFO L933 BasicCegarLoop]: 1687 mSDtfsCounter, 2017 mSDsluCounter, 3467 mSDsCounter, 0 mSdLazyCounter, 2141 mSolverCounterSat, 1323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 5154 SdHoareTripleChecker+Invalid, 3464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1323 IncrementalHoareTripleChecker+Valid, 2141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:50:37,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2242 Valid, 5154 Invalid, 3464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1323 Valid, 2141 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2021-12-22 14:50:37,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2021-12-22 14:50:37,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2085. [2021-12-22 14:50:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 1459 states have (on average 1.3372172721041808) internal successors, (1951), 1480 states have internal predecessors, (1951), 505 states have call successors, (505), 121 states have call predecessors, (505), 120 states have return successors, (498), 495 states have call predecessors, (498), 498 states have call successors, (498) [2021-12-22 14:50:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 2954 transitions. [2021-12-22 14:50:37,957 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 2954 transitions. Word has length 223 [2021-12-22 14:50:37,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:50:37,961 INFO L470 AbstractCegarLoop]: Abstraction has 2085 states and 2954 transitions. [2021-12-22 14:50:37,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-22 14:50:37,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 2954 transitions. [2021-12-22 14:50:37,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-22 14:50:37,965 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:50:37,966 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:50:37,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:50:37,966 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:50:37,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:50:37,967 INFO L85 PathProgramCache]: Analyzing trace with hash 36637550, now seen corresponding path program 1 times [2021-12-22 14:50:37,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:50:37,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157656477] [2021-12-22 14:50:37,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:50:37,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:50:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:50:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:50:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:50:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:50:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:50:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:50:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:50:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:50:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:50:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:50:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 14:50:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 14:50:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 14:50:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 14:50:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 14:50:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-22 14:50:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-22 14:50:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-22 14:50:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:38,366 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-12-22 14:50:38,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:50:38,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157656477] [2021-12-22 14:50:38,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157656477] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:50:38,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:50:38,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:50:38,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171401105] [2021-12-22 14:50:38,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:50:38,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:50:38,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:50:38,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:50:38,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:50:38,368 INFO L87 Difference]: Start difference. First operand 2085 states and 2954 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-22 14:50:44,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:50:44,475 INFO L93 Difference]: Finished difference Result 5318 states and 7612 transitions. [2021-12-22 14:50:44,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:50:44,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 224 [2021-12-22 14:50:44,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:50:44,494 INFO L225 Difference]: With dead ends: 5318 [2021-12-22 14:50:44,495 INFO L226 Difference]: Without dead ends: 3277 [2021-12-22 14:50:44,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:50:44,504 INFO L933 BasicCegarLoop]: 1684 mSDtfsCounter, 1446 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 1060 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 4517 SdHoareTripleChecker+Invalid, 2496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1060 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:50:44,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1569 Valid, 4517 Invalid, 2496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1060 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-12-22 14:50:44,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2021-12-22 14:50:44,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 3025. [2021-12-22 14:50:44,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 2132 states have (on average 1.344746716697936) internal successors, (2867), 2153 states have internal predecessors, (2867), 707 states have call successors, (707), 186 states have call predecessors, (707), 185 states have return successors, (700), 697 states have call predecessors, (700), 700 states have call successors, (700) [2021-12-22 14:50:44,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 4274 transitions. [2021-12-22 14:50:44,619 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 4274 transitions. Word has length 224 [2021-12-22 14:50:44,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:50:44,621 INFO L470 AbstractCegarLoop]: Abstraction has 3025 states and 4274 transitions. [2021-12-22 14:50:44,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-22 14:50:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 4274 transitions. [2021-12-22 14:50:44,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-22 14:50:44,624 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:50:44,624 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:50:44,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:50:44,624 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:50:44,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:50:44,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1833405017, now seen corresponding path program 1 times [2021-12-22 14:50:44,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:50:44,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873984251] [2021-12-22 14:50:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:50:44,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:50:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:50:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:50:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:50:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:50:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:50:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:50:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:50:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:50:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:50:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:44,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:45,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:50:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:45,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 14:50:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:45,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 14:50:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:45,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 14:50:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:45,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 14:50:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:45,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 14:50:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-22 14:50:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:45,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-22 14:50:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:45,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-22 14:50:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:45,057 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-12-22 14:50:45,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:50:45,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873984251] [2021-12-22 14:50:45,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873984251] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:50:45,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:50:45,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:50:45,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088625748] [2021-12-22 14:50:45,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:50:45,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:50:45,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:50:45,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:50:45,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:50:45,060 INFO L87 Difference]: Start difference. First operand 3025 states and 4274 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-22 14:50:54,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:50:54,381 INFO L93 Difference]: Finished difference Result 9371 states and 13432 transitions. [2021-12-22 14:50:54,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:50:54,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 225 [2021-12-22 14:50:54,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:50:54,408 INFO L225 Difference]: With dead ends: 9371 [2021-12-22 14:50:54,409 INFO L226 Difference]: Without dead ends: 6400 [2021-12-22 14:50:54,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:50:54,417 INFO L933 BasicCegarLoop]: 1791 mSDtfsCounter, 2007 mSDsluCounter, 3701 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 1300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2236 SdHoareTripleChecker+Valid, 5492 SdHoareTripleChecker+Invalid, 3535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1300 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:50:54,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2236 Valid, 5492 Invalid, 3535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1300 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2021-12-22 14:50:54,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2021-12-22 14:50:54,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 5924. [2021-12-22 14:50:54,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5924 states, 4185 states have (on average 1.3464755077658304) internal successors, (5635), 4220 states have internal predecessors, (5635), 1371 states have call successors, (1371), 368 states have call predecessors, (1371), 367 states have return successors, (1364), 1359 states have call predecessors, (1364), 1364 states have call successors, (1364) [2021-12-22 14:50:54,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 8370 transitions. [2021-12-22 14:50:54,582 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 8370 transitions. Word has length 225 [2021-12-22 14:50:54,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:50:54,582 INFO L470 AbstractCegarLoop]: Abstraction has 5924 states and 8370 transitions. [2021-12-22 14:50:54,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-22 14:50:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 8370 transitions. [2021-12-22 14:50:54,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-12-22 14:50:54,585 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:50:54,586 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:50:54,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:50:54,586 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:50:54,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:50:54,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1824221697, now seen corresponding path program 1 times [2021-12-22 14:50:54,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:50:54,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388667835] [2021-12-22 14:50:54,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:50:54,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:50:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:50:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:50:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:50:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:50:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:50:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:50:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:50:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:50:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:50:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:50:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:50:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:50:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 14:50:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 14:50:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 14:50:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 14:50:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 14:50:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-22 14:50:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-22 14:50:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-22 14:50:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:50:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-12-22 14:50:54,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:50:54,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388667835] [2021-12-22 14:50:54,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388667835] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:50:54,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:50:54,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:50:54,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399817402] [2021-12-22 14:50:54,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:50:54,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:50:54,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:50:54,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:50:54,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:50:54,950 INFO L87 Difference]: Start difference. First operand 5924 states and 8370 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-22 14:51:05,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:51:05,395 INFO L93 Difference]: Finished difference Result 17672 states and 25250 transitions. [2021-12-22 14:51:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:51:05,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 229 [2021-12-22 14:51:05,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:51:05,446 INFO L225 Difference]: With dead ends: 17672 [2021-12-22 14:51:05,447 INFO L226 Difference]: Without dead ends: 11802 [2021-12-22 14:51:05,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:51:05,461 INFO L933 BasicCegarLoop]: 1857 mSDtfsCounter, 1943 mSDsluCounter, 3738 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 1205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 5595 SdHoareTripleChecker+Invalid, 3413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1205 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:51:05,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2172 Valid, 5595 Invalid, 3413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1205 Valid, 2208 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2021-12-22 14:51:05,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11802 states. [2021-12-22 14:51:05,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11802 to 11004. [2021-12-22 14:51:05,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11004 states, 7811 states have (on average 1.345410318781206) internal successors, (10509), 7874 states have internal predecessors, (10509), 2501 states have call successors, (2501), 692 states have call predecessors, (2501), 691 states have return successors, (2494), 2485 states have call predecessors, (2494), 2494 states have call successors, (2494) [2021-12-22 14:51:05,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11004 states to 11004 states and 15504 transitions. [2021-12-22 14:51:05,837 INFO L78 Accepts]: Start accepts. Automaton has 11004 states and 15504 transitions. Word has length 229 [2021-12-22 14:51:05,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:51:05,837 INFO L470 AbstractCegarLoop]: Abstraction has 11004 states and 15504 transitions. [2021-12-22 14:51:05,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-22 14:51:05,838 INFO L276 IsEmpty]: Start isEmpty. Operand 11004 states and 15504 transitions. [2021-12-22 14:51:05,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-12-22 14:51:05,840 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:51:05,841 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:51:05,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:51:05,841 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:51:05,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:51:05,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1358278430, now seen corresponding path program 1 times [2021-12-22 14:51:05,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:51:05,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701617446] [2021-12-22 14:51:05,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:51:05,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:51:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:51:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:51:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:51:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:51:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:51:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:51:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:51:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:51:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:51:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:51:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 14:51:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 14:51:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 14:51:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 14:51:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 14:51:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-22 14:51:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-22 14:51:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-22 14:51:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 14:51:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:06,202 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-12-22 14:51:06,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:51:06,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701617446] [2021-12-22 14:51:06,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701617446] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:51:06,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:51:06,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:51:06,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468641056] [2021-12-22 14:51:06,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:51:06,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:51:06,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:51:06,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:51:06,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:51:06,205 INFO L87 Difference]: Start difference. First operand 11004 states and 15504 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-22 14:51:16,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:51:16,353 INFO L93 Difference]: Finished difference Result 33800 states and 48062 transitions. [2021-12-22 14:51:16,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:51:16,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 237 [2021-12-22 14:51:16,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:51:16,427 INFO L225 Difference]: With dead ends: 33800 [2021-12-22 14:51:16,427 INFO L226 Difference]: Without dead ends: 22850 [2021-12-22 14:51:16,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-22 14:51:16,452 INFO L933 BasicCegarLoop]: 1911 mSDtfsCounter, 2092 mSDsluCounter, 3990 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 1347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2337 SdHoareTripleChecker+Valid, 5901 SdHoareTripleChecker+Invalid, 3604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1347 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-12-22 14:51:16,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2337 Valid, 5901 Invalid, 3604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1347 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2021-12-22 14:51:16,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22850 states. [2021-12-22 14:51:17,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22850 to 21158. [2021-12-22 14:51:17,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21158 states, 15069 states have (on average 1.3450793018780278) internal successors, (20269), 15190 states have internal predecessors, (20269), 4725 states have call successors, (4725), 1364 states have call predecessors, (4725), 1363 states have return successors, (4718), 4699 states have call predecessors, (4718), 4718 states have call successors, (4718) [2021-12-22 14:51:17,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21158 states to 21158 states and 29712 transitions. [2021-12-22 14:51:17,086 INFO L78 Accepts]: Start accepts. Automaton has 21158 states and 29712 transitions. Word has length 237 [2021-12-22 14:51:17,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:51:17,087 INFO L470 AbstractCegarLoop]: Abstraction has 21158 states and 29712 transitions. [2021-12-22 14:51:17,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-22 14:51:17,087 INFO L276 IsEmpty]: Start isEmpty. Operand 21158 states and 29712 transitions. [2021-12-22 14:51:17,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-12-22 14:51:17,089 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:51:17,089 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:51:17,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 14:51:17,090 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:51:17,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:51:17,090 INFO L85 PathProgramCache]: Analyzing trace with hash -353313936, now seen corresponding path program 1 times [2021-12-22 14:51:17,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:51:17,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818870055] [2021-12-22 14:51:17,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:51:17,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:51:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:51:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:51:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:51:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:51:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:51:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:51:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:51:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:51:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:51:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:51:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:51:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 14:51:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 14:51:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 14:51:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 14:51:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 14:51:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-22 14:51:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-22 14:51:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-22 14:51:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 14:51:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:51:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:51:17,520 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-12-22 14:51:17,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:51:17,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818870055] [2021-12-22 14:51:17,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818870055] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:51:17,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:51:17,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:51:17,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048799074] [2021-12-22 14:51:17,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:51:17,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:51:17,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:51:17,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:51:17,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:51:17,523 INFO L87 Difference]: Start difference. First operand 21158 states and 29712 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)