./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--r8a66597-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--r8a66597-hcd.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 08f69d9d27fea4ba41de4dd6c325f6f1a70ecfdbb77928c35b5b3f93d75aa1b8 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:24:54,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:24:54,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:24:54,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:24:54,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:24:54,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:24:54,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:24:54,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:24:54,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:24:54,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:24:54,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:24:54,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:24:54,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:24:54,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:24:54,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:24:54,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:24:54,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:24:54,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:24:54,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:24:54,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:24:54,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:24:54,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:24:54,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:24:54,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:24:54,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:24:54,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:24:54,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:24:54,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:24:54,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:24:54,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:24:54,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:24:54,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:24:54,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:24:54,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:24:54,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:24:54,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:24:54,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:24:54,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:24:54,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:24:54,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:24:54,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:24:54,813 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:24:54,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:24:54,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:24:54,836 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:24:54,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:24:54,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:24:54,837 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:24:54,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:24:54,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:24:54,837 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:24:54,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:24:54,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:24:54,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:24:54,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:24:54,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:24:54,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:24:54,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:24:54,839 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:24:54,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:24:54,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:24:54,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:24:54,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:24:54,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:24:54,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:24:54,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:24:54,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:24:54,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:24:54,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:24:54,840 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:24:54,840 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:24:54,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:24:54,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:24:54,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08f69d9d27fea4ba41de4dd6c325f6f1a70ecfdbb77928c35b5b3f93d75aa1b8 [2021-12-14 18:24:55,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:24:55,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:24:55,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:24:55,052 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:24:55,052 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:24:55,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--r8a66597-hcd.ko-entry_point.cil.out.i [2021-12-14 18:24:55,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb490fc4/5d9d17bc3e2746ef82ec4bbcb4f9a3a3/FLAG9c9fab3da [2021-12-14 18:24:55,758 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:24:55,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--r8a66597-hcd.ko-entry_point.cil.out.i [2021-12-14 18:24:55,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb490fc4/5d9d17bc3e2746ef82ec4bbcb4f9a3a3/FLAG9c9fab3da [2021-12-14 18:24:56,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb490fc4/5d9d17bc3e2746ef82ec4bbcb4f9a3a3 [2021-12-14 18:24:56,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:24:56,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:24:56,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:24:56,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:24:56,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:24:56,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:24:56" (1/1) ... [2021-12-14 18:24:56,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a89be3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:56, skipping insertion in model container [2021-12-14 18:24:56,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:24:56" (1/1) ... [2021-12-14 18:24:56,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:24:56,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:24:57,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--r8a66597-hcd.ko-entry_point.cil.out.i[250006,250019] [2021-12-14 18:24:57,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:24:57,649 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:24:57,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--r8a66597-hcd.ko-entry_point.cil.out.i[250006,250019] [2021-12-14 18:24:57,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:24:57,984 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:24:57,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57 WrapperNode [2021-12-14 18:24:57,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:24:57,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:24:57,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:24:57,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:24:57,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57" (1/1) ... [2021-12-14 18:24:58,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57" (1/1) ... [2021-12-14 18:24:58,185 INFO L137 Inliner]: procedures = 302, calls = 1935, calls flagged for inlining = 138, calls inlined = 135, statements flattened = 5018 [2021-12-14 18:24:58,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:24:58,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:24:58,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:24:58,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:24:58,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57" (1/1) ... [2021-12-14 18:24:58,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57" (1/1) ... [2021-12-14 18:24:58,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57" (1/1) ... [2021-12-14 18:24:58,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57" (1/1) ... [2021-12-14 18:24:58,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57" (1/1) ... [2021-12-14 18:24:58,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57" (1/1) ... [2021-12-14 18:24:58,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57" (1/1) ... [2021-12-14 18:24:58,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:24:58,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:24:58,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:24:58,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:24:58,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57" (1/1) ... [2021-12-14 18:24:58,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:24:58,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:24:58,378 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) [2021-12-14 18:24:58,385 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 [2021-12-14 18:24:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure finish_request [2021-12-14 18:24:58,408 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_request [2021-12-14 18:24:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure start_transfer [2021-12-14 18:24:58,409 INFO L138 BoogieDeclarations]: Found implementation of procedure start_transfer [2021-12-14 18:24:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_hub_status_data [2021-12-14 18:24:58,409 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_hub_status_data [2021-12-14 18:24:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-14 18:24:58,409 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-14 18:24:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_resume [2021-12-14 18:24:58,409 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_resume [2021-12-14 18:24:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:24:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:24:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:24:58,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:24:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:24:58,410 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:24:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure disable_controller [2021-12-14 18:24:58,410 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_controller [2021-12-14 18:24:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure pipe_stop [2021-12-14 18:24:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pipe_stop [2021-12-14 18:24:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure free_usb_address [2021-12-14 18:24:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure free_usb_address [2021-12-14 18:24:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure pipe_irq_enable [2021-12-14 18:24:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pipe_irq_enable [2021-12-14 18:24:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure disable_r8a66597_pipe_all [2021-12-14 18:24:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_r8a66597_pipe_all [2021-12-14 18:24:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 18:24:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 18:24:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure enable_controller [2021-12-14 18:24:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_controller [2021-12-14 18:24:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:24:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:24:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-14 18:24:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-14 18:24:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_root_hub_start_polling [2021-12-14 18:24:58,413 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_root_hub_start_polling [2021-12-14 18:24:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:24:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:24:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-14 18:24:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-14 18:24:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure pipe_irq_disable [2021-12-14 18:24:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure pipe_irq_disable [2021-12-14 18:24:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure pipe_toggle_set [2021-12-14 18:24:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure pipe_toggle_set [2021-12-14 18:24:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_urb_dequeue [2021-12-14 18:24:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_urb_dequeue [2021-12-14 18:24:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:24:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:24:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2021-12-14 18:24:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2021-12-14 18:24:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_hub_control [2021-12-14 18:24:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_hub_control [2021-12-14 18:24:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure set_pipe_reg_addr [2021-12-14 18:24:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pipe_reg_addr [2021-12-14 18:24:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-14 18:24:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-14 18:24:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure get_urb_to_r8a66597_addr [2021-12-14 18:24:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure get_urb_to_r8a66597_addr [2021-12-14 18:24:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:24:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:24:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_urb_done [2021-12-14 18:24:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_urb_done [2021-12-14 18:24:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure check_next_phase [2021-12-14 18:24:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure check_next_phase [2021-12-14 18:24:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure get_intsts_reg [2021-12-14 18:24:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure get_intsts_reg [2021-12-14 18:24:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2021-12-14 18:24:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2021-12-14 18:24:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_mdfy [2021-12-14 18:24:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_mdfy [2021-12-14 18:24:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-14 18:24:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-14 18:24:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure set_devadd_reg [2021-12-14 18:24:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure set_devadd_reg [2021-12-14 18:24:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_urb_enqueue [2021-12-14 18:24:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_urb_enqueue [2021-12-14 18:24:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure get_syssts_reg [2021-12-14 18:24:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure get_syssts_reg [2021-12-14 18:24:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2021-12-14 18:24:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2021-12-14 18:24:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:24:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:24:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:24:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_start [2021-12-14 18:24:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_start [2021-12-14 18:24:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:24:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure pipe_start [2021-12-14 18:24:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pipe_start [2021-12-14 18:24:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure check_transfer_finish [2021-12-14 18:24:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure check_transfer_finish [2021-12-14 18:24:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_remove [2021-12-14 18:24:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_remove [2021-12-14 18:24:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-14 18:24:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-14 18:24:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:24:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:24:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:24:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:24:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure enable_pipe_irq [2021-12-14 18:24:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_pipe_irq [2021-12-14 18:24:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-12-14 18:24:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-12-14 18:24:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:24:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-14 18:24:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-14 18:24:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-14 18:24:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-14 18:24:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:24:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_endpoint_disable [2021-12-14 18:24:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_endpoint_disable [2021-12-14 18:24:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure start_root_hub_sampling [2021-12-14 18:24:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure start_root_hub_sampling [2021-12-14 18:24:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_bus_resume [2021-12-14 18:24:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_bus_resume [2021-12-14 18:24:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-14 18:24:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-14 18:24:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 18:24:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 18:24:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure collect_usb_address_map [2021-12-14 18:24:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure collect_usb_address_map [2021-12-14 18:24:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_pipe_toggle [2021-12-14 18:24:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_pipe_toggle [2021-12-14 18:24:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure get_syscfg_reg [2021-12-14 18:24:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure get_syscfg_reg [2021-12-14 18:24:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_write [2021-12-14 18:24:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_write [2021-12-14 18:24:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 18:24:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 18:24:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure get_toggle_pointer [2021-12-14 18:24:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure get_toggle_pointer [2021-12-14 18:24:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-12-14 18:24:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-12-14 18:24:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure get_parent_r8a66597_address [2021-12-14 18:24:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure get_parent_r8a66597_address [2021-12-14 18:24:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2021-12-14 18:24:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2021-12-14 18:24:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:24:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure packet_write [2021-12-14 18:24:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure packet_write [2021-12-14 18:24:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-14 18:24:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-14 18:24:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-14 18:24:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-14 18:24:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:24:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-12-14 18:24:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-12-14 18:24:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure clk_put [2021-12-14 18:24:58,457 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_put [2021-12-14 18:24:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-12-14 18:24:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-12-14 18:24:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure get_port_number [2021-12-14 18:24:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure get_port_number [2021-12-14 18:24:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:24:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure force_dequeue [2021-12-14 18:24:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure force_dequeue [2021-12-14 18:24:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure get_intenb_reg [2021-12-14 18:24:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure get_intenb_reg [2021-12-14 18:24:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_to_hcd [2021-12-14 18:24:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_to_hcd [2021-12-14 18:24:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure disable_pipe_irq [2021-12-14 18:24:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_pipe_irq [2021-12-14 18:24:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure pipe_setting [2021-12-14 18:24:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure pipe_setting [2021-12-14 18:24:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_clock_enable [2021-12-14 18:24:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_clock_enable [2021-12-14 18:24:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-14 18:24:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-14 18:24:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure get_urb_to_r8a66597_dev [2021-12-14 18:24:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure get_urb_to_r8a66597_dev [2021-12-14 18:24:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure get_dvstctr_reg [2021-12-14 18:24:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dvstctr_reg [2021-12-14 18:24:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure packet_read [2021-12-14 18:24:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure packet_read [2021-12-14 18:24:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure fifo_change_from_pipe [2021-12-14 18:24:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure fifo_change_from_pipe [2021-12-14 18:24:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:24:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:24:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure get_urb_error [2021-12-14 18:24:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure get_urb_error [2021-12-14 18:24:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-14 18:24:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-14 18:24:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure mbw_value [2021-12-14 18:24:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mbw_value [2021-12-14 18:24:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:24:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure cfifo_change [2021-12-14 18:24:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure cfifo_change [2021-12-14 18:24:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_get_td [2021-12-14 18:24:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_get_td [2021-12-14 18:24:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:24:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:24:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hub_find_child [2021-12-14 18:24:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hub_find_child [2021-12-14 18:24:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:24:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:24:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_probe [2021-12-14 18:24:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_probe [2021-12-14 18:24:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2021-12-14 18:24:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2021-12-14 18:24:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:24:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_port_power [2021-12-14 18:24:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_port_power [2021-12-14 18:24:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:24:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:24:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:24:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:24:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:24:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:24:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-12-14 18:24:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-12-14 18:24:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure get_r8a66597_usb_speed [2021-12-14 18:24:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure get_r8a66597_usb_speed [2021-12-14 18:24:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_read [2021-12-14 18:24:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_read [2021-12-14 18:24:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-14 18:24:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-14 18:24:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure set_td_timer [2021-12-14 18:24:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure set_td_timer [2021-12-14 18:24:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_packet_write [2021-12-14 18:24:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_packet_write [2021-12-14 18:24:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2021-12-14 18:24:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2021-12-14 18:24:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_suspend [2021-12-14 18:24:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_suspend [2021-12-14 18:24:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_irq [2021-12-14 18:24:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_irq [2021-12-14 18:24:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:24:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:24:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_reg_wait [2021-12-14 18:24:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_reg_wait [2021-12-14 18:24:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-14 18:24:58,470 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-14 18:24:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 18:24:58,470 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 18:24:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_usb_disconnect [2021-12-14 18:24:58,470 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_usb_disconnect [2021-12-14 18:24:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:24:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_get_frame [2021-12-14 18:24:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_get_frame [2021-12-14 18:24:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure r8a66597_bus_suspend [2021-12-14 18:24:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure r8a66597_bus_suspend [2021-12-14 18:24:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:24:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:24:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_r8a66597 [2021-12-14 18:24:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_r8a66597 [2021-12-14 18:24:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 18:24:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 18:24:59,104 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:24:59,106 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:24:59,648 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:25:01,545 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:25:01,566 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:25:01,567 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:25:01,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:25:01 BoogieIcfgContainer [2021-12-14 18:25:01,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:25:01,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:25:01,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:25:01,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:25:01,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:24:56" (1/3) ... [2021-12-14 18:25:01,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45362ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:25:01, skipping insertion in model container [2021-12-14 18:25:01,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:57" (2/3) ... [2021-12-14 18:25:01,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45362ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:25:01, skipping insertion in model container [2021-12-14 18:25:01,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:25:01" (3/3) ... [2021-12-14 18:25:01,582 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--r8a66597-hcd.ko-entry_point.cil.out.i [2021-12-14 18:25:01,586 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:25:01,586 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:25:01,630 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:25:01,636 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 [2021-12-14 18:25:01,636 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:25:01,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 2221 states, 1486 states have (on average 1.3660834454912516) internal successors, (2030), 1573 states have internal predecessors, (2030), 619 states have call successors, (619), 115 states have call predecessors, (619), 114 states have return successors, (611), 589 states have call predecessors, (611), 611 states have call successors, (611) [2021-12-14 18:25:01,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-14 18:25:01,706 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:25:01,707 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:25:01,708 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:25:01,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:25:01,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1689100969, now seen corresponding path program 1 times [2021-12-14 18:25:01,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:25:01,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492948471] [2021-12-14 18:25:01,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:25:01,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:25:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:25:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:25:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:25:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:25:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:25:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 18:25:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 18:25:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 18:25:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:25:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:25:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 18:25:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 18:25:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:02,318 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-12-14 18:25:02,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:25:02,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492948471] [2021-12-14 18:25:02,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492948471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:25:02,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:25:02,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:25:02,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428604855] [2021-12-14 18:25:02,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:25:02,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:25:02,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:25:02,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:25:02,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:25:02,351 INFO L87 Difference]: Start difference. First operand has 2221 states, 1486 states have (on average 1.3660834454912516) internal successors, (2030), 1573 states have internal predecessors, (2030), 619 states have call successors, (619), 115 states have call predecessors, (619), 114 states have return successors, (611), 589 states have call predecessors, (611), 611 states have call successors, (611) Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-14 18:25:08,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:25:08,651 INFO L93 Difference]: Finished difference Result 4990 states and 7568 transitions. [2021-12-14 18:25:08,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:25:08,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 159 [2021-12-14 18:25:08,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:25:08,685 INFO L225 Difference]: With dead ends: 4990 [2021-12-14 18:25:08,685 INFO L226 Difference]: Without dead ends: 2753 [2021-12-14 18:25:08,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:25:08,710 INFO L933 BasicCegarLoop]: 2673 mSDtfsCounter, 3378 mSDsluCounter, 3508 mSDsCounter, 0 mSdLazyCounter, 3834 mSolverCounterSat, 3410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3509 SdHoareTripleChecker+Valid, 6181 SdHoareTripleChecker+Invalid, 7244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3410 IncrementalHoareTripleChecker+Valid, 3834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:25:08,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3509 Valid, 6181 Invalid, 7244 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3410 Valid, 3834 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-14 18:25:08,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2753 states. [2021-12-14 18:25:08,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2753 to 2200. [2021-12-14 18:25:08,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2200 states, 1475 states have (on average 1.3593220338983052) internal successors, (2005), 1552 states have internal predecessors, (2005), 611 states have call successors, (611), 114 states have call predecessors, (611), 113 states have return successors, (610), 588 states have call predecessors, (610), 610 states have call successors, (610) [2021-12-14 18:25:08,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 3226 transitions. [2021-12-14 18:25:08,894 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 3226 transitions. Word has length 159 [2021-12-14 18:25:08,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:25:08,895 INFO L470 AbstractCegarLoop]: Abstraction has 2200 states and 3226 transitions. [2021-12-14 18:25:08,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-14 18:25:08,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 3226 transitions. [2021-12-14 18:25:08,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-14 18:25:08,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:25:08,904 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:25:08,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:25:08,905 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:25:08,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:25:08,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1294176512, now seen corresponding path program 1 times [2021-12-14 18:25:08,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:25:08,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95510873] [2021-12-14 18:25:08,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:25:08,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:25:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:25:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:25:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:25:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:25:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:25:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 18:25:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 18:25:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 18:25:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:25:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 18:25:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 18:25:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:25:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:09,225 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-12-14 18:25:09,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:25:09,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95510873] [2021-12-14 18:25:09,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95510873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:25:09,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:25:09,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 18:25:09,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012709749] [2021-12-14 18:25:09,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:25:09,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 18:25:09,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:25:09,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 18:25:09,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-14 18:25:09,231 INFO L87 Difference]: Start difference. First operand 2200 states and 3226 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-14 18:25:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:25:17,618 INFO L93 Difference]: Finished difference Result 6457 states and 9598 transitions. [2021-12-14 18:25:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 18:25:17,619 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 160 [2021-12-14 18:25:17,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:25:17,650 INFO L225 Difference]: With dead ends: 6457 [2021-12-14 18:25:17,650 INFO L226 Difference]: Without dead ends: 4286 [2021-12-14 18:25:17,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-14 18:25:17,663 INFO L933 BasicCegarLoop]: 2822 mSDtfsCounter, 6881 mSDsluCounter, 4687 mSDsCounter, 0 mSdLazyCounter, 5383 mSolverCounterSat, 6118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7100 SdHoareTripleChecker+Valid, 7509 SdHoareTripleChecker+Invalid, 11501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6118 IncrementalHoareTripleChecker+Valid, 5383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-12-14 18:25:17,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7100 Valid, 7509 Invalid, 11501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6118 Valid, 5383 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2021-12-14 18:25:17,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4286 states. [2021-12-14 18:25:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4286 to 3503. [2021-12-14 18:25:17,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3503 states, 2339 states have (on average 1.3518597691321077) internal successors, (3162), 2465 states have internal predecessors, (3162), 963 states have call successors, (963), 201 states have call predecessors, (963), 200 states have return successors, (962), 920 states have call predecessors, (962), 962 states have call successors, (962) [2021-12-14 18:25:17,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3503 states to 3503 states and 5087 transitions. [2021-12-14 18:25:17,824 INFO L78 Accepts]: Start accepts. Automaton has 3503 states and 5087 transitions. Word has length 160 [2021-12-14 18:25:17,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:25:17,825 INFO L470 AbstractCegarLoop]: Abstraction has 3503 states and 5087 transitions. [2021-12-14 18:25:17,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-14 18:25:17,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3503 states and 5087 transitions. [2021-12-14 18:25:17,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-14 18:25:17,831 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:25:17,832 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:25:17,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:25:17,832 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:25:17,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:25:17,833 INFO L85 PathProgramCache]: Analyzing trace with hash 798228537, now seen corresponding path program 1 times [2021-12-14 18:25:17,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:25:17,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558755462] [2021-12-14 18:25:17,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:25:17,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:25:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:17,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:25:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:25:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:25:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:25:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:25:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 18:25:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 18:25:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 18:25:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:25:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:25:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 18:25:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 18:25:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-14 18:25:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:25:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:25:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:18,192 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-12-14 18:25:18,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:25:18,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558755462] [2021-12-14 18:25:18,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558755462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:25:18,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:25:18,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 18:25:18,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523468116] [2021-12-14 18:25:18,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:25:18,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 18:25:18,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:25:18,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 18:25:18,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:25:18,194 INFO L87 Difference]: Start difference. First operand 3503 states and 5087 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:25:23,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:25:23,911 INFO L93 Difference]: Finished difference Result 7774 states and 11468 transitions. [2021-12-14 18:25:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 18:25:23,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 202 [2021-12-14 18:25:23,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:25:23,932 INFO L225 Difference]: With dead ends: 7774 [2021-12-14 18:25:23,933 INFO L226 Difference]: Without dead ends: 4300 [2021-12-14 18:25:23,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2021-12-14 18:25:23,947 INFO L933 BasicCegarLoop]: 2661 mSDtfsCounter, 9402 mSDsluCounter, 1846 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 7543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9659 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 9838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7543 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:25:23,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9659 Valid, 4507 Invalid, 9838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7543 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-14 18:25:23,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4300 states. [2021-12-14 18:25:24,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4300 to 3519. [2021-12-14 18:25:24,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3519 states, 2351 states have (on average 1.3487877498936622) internal successors, (3171), 2475 states have internal predecessors, (3171), 963 states have call successors, (963), 205 states have call predecessors, (963), 204 states have return successors, (962), 922 states have call predecessors, (962), 962 states have call successors, (962) [2021-12-14 18:25:24,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3519 states to 3519 states and 5096 transitions. [2021-12-14 18:25:24,107 INFO L78 Accepts]: Start accepts. Automaton has 3519 states and 5096 transitions. Word has length 202 [2021-12-14 18:25:24,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:25:24,108 INFO L470 AbstractCegarLoop]: Abstraction has 3519 states and 5096 transitions. [2021-12-14 18:25:24,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:25:24,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3519 states and 5096 transitions. [2021-12-14 18:25:24,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-14 18:25:24,114 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:25:24,115 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:25:24,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:25:24,115 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:25:24,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:25:24,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2072116083, now seen corresponding path program 1 times [2021-12-14 18:25:24,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:25:24,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840784231] [2021-12-14 18:25:24,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:25:24,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:25:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:25:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:25:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:25:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:25:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:25:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 18:25:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 18:25:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 18:25:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:25:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 18:25:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:25:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:25:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:25:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-14 18:25:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 18:25:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-12-14 18:25:24,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:25:24,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840784231] [2021-12-14 18:25:24,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840784231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:25:24,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:25:24,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 18:25:24,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573491877] [2021-12-14 18:25:24,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:25:24,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 18:25:24,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:25:24,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 18:25:24,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:25:24,424 INFO L87 Difference]: Start difference. First operand 3519 states and 5096 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:25:30,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:25:30,193 INFO L93 Difference]: Finished difference Result 7770 states and 11450 transitions. [2021-12-14 18:25:30,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 18:25:30,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 203 [2021-12-14 18:25:30,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:25:30,210 INFO L225 Difference]: With dead ends: 7770 [2021-12-14 18:25:30,210 INFO L226 Difference]: Without dead ends: 4298 [2021-12-14 18:25:30,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2021-12-14 18:25:30,220 INFO L933 BasicCegarLoop]: 2645 mSDtfsCounter, 6109 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 3115 mSolverCounterSat, 4746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6368 SdHoareTripleChecker+Valid, 5250 SdHoareTripleChecker+Invalid, 7861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4746 IncrementalHoareTripleChecker+Valid, 3115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-14 18:25:30,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6368 Valid, 5250 Invalid, 7861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4746 Valid, 3115 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-14 18:25:30,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2021-12-14 18:25:30,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 3517. [2021-12-14 18:25:30,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3517 states, 2351 states have (on average 1.3479370480646533) internal successors, (3169), 2473 states have internal predecessors, (3169), 961 states have call successors, (961), 205 states have call predecessors, (961), 204 states have return successors, (960), 922 states have call predecessors, (960), 960 states have call successors, (960) [2021-12-14 18:25:30,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3517 states to 3517 states and 5090 transitions. [2021-12-14 18:25:30,357 INFO L78 Accepts]: Start accepts. Automaton has 3517 states and 5090 transitions. Word has length 203 [2021-12-14 18:25:30,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:25:30,358 INFO L470 AbstractCegarLoop]: Abstraction has 3517 states and 5090 transitions. [2021-12-14 18:25:30,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:25:30,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3517 states and 5090 transitions. [2021-12-14 18:25:30,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-14 18:25:30,364 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:25:30,364 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:25:30,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:25:30,365 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:25:30,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:25:30,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1478423429, now seen corresponding path program 1 times [2021-12-14 18:25:30,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:25:30,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764491652] [2021-12-14 18:25:30,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:25:30,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:25:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:25:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:25:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:25:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:25:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:25:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 18:25:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 18:25:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 18:25:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:25:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 18:25:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 18:25:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:25:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-14 18:25:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-14 18:25:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-14 18:25:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-12-14 18:25:30,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:25:30,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764491652] [2021-12-14 18:25:30,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764491652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:25:30,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:25:30,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 18:25:30,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790089093] [2021-12-14 18:25:30,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:25:30,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 18:25:30,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:25:30,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 18:25:30,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:25:30,631 INFO L87 Difference]: Start difference. First operand 3517 states and 5090 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:25:37,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:25:37,614 INFO L93 Difference]: Finished difference Result 7766 states and 11436 transitions. [2021-12-14 18:25:37,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 18:25:37,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 201 [2021-12-14 18:25:37,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:25:37,631 INFO L225 Difference]: With dead ends: 7766 [2021-12-14 18:25:37,632 INFO L226 Difference]: Without dead ends: 4296 [2021-12-14 18:25:37,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2021-12-14 18:25:37,642 INFO L933 BasicCegarLoop]: 2610 mSDtfsCounter, 10670 mSDsluCounter, 3408 mSDsCounter, 0 mSdLazyCounter, 3908 mSolverCounterSat, 8144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10928 SdHoareTripleChecker+Valid, 6018 SdHoareTripleChecker+Invalid, 12052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8144 IncrementalHoareTripleChecker+Valid, 3908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:25:37,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10928 Valid, 6018 Invalid, 12052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8144 Valid, 3908 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-12-14 18:25:37,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4296 states. [2021-12-14 18:25:37,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4296 to 3515. [2021-12-14 18:25:37,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3515 states, 2351 states have (on average 1.3470863462356444) internal successors, (3167), 2471 states have internal predecessors, (3167), 959 states have call successors, (959), 205 states have call predecessors, (959), 204 states have return successors, (958), 922 states have call predecessors, (958), 958 states have call successors, (958) [2021-12-14 18:25:37,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3515 states to 3515 states and 5084 transitions. [2021-12-14 18:25:37,774 INFO L78 Accepts]: Start accepts. Automaton has 3515 states and 5084 transitions. Word has length 201 [2021-12-14 18:25:37,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:25:37,775 INFO L470 AbstractCegarLoop]: Abstraction has 3515 states and 5084 transitions. [2021-12-14 18:25:37,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:25:37,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3515 states and 5084 transitions. [2021-12-14 18:25:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-12-14 18:25:37,779 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:25:37,779 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:25:37,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:25:37,780 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:25:37,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:25:37,780 INFO L85 PathProgramCache]: Analyzing trace with hash -185191999, now seen corresponding path program 1 times [2021-12-14 18:25:37,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:25:37,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86556358] [2021-12-14 18:25:37,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:25:37,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:25:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:25:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:25:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:25:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:25:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:25:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 18:25:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 18:25:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 18:25:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:25:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:25:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 18:25:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:25:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:25:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:25:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 18:25:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:37,998 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-12-14 18:25:37,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:25:37,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86556358] [2021-12-14 18:25:37,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86556358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:25:37,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:25:37,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 18:25:37,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785972764] [2021-12-14 18:25:37,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:25:37,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 18:25:37,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:25:37,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 18:25:37,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:25:38,000 INFO L87 Difference]: Start difference. First operand 3515 states and 5084 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:25:43,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:25:43,122 INFO L93 Difference]: Finished difference Result 7692 states and 11314 transitions. [2021-12-14 18:25:43,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 18:25:43,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 200 [2021-12-14 18:25:43,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:25:43,140 INFO L225 Difference]: With dead ends: 7692 [2021-12-14 18:25:43,140 INFO L226 Difference]: Without dead ends: 4224 [2021-12-14 18:25:43,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2021-12-14 18:25:43,150 INFO L933 BasicCegarLoop]: 2628 mSDtfsCounter, 7072 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 5810 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7323 SdHoareTripleChecker+Valid, 4432 SdHoareTripleChecker+Invalid, 8082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5810 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:25:43,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7323 Valid, 4432 Invalid, 8082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5810 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-12-14 18:25:43,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4224 states. [2021-12-14 18:25:43,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4224 to 3475. [2021-12-14 18:25:43,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 2325 states have (on average 1.3466666666666667) internal successors, (3131), 2443 states have internal predecessors, (3131), 947 states have call successors, (947), 203 states have call predecessors, (947), 202 states have return successors, (946), 910 states have call predecessors, (946), 946 states have call successors, (946) [2021-12-14 18:25:43,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 5024 transitions. [2021-12-14 18:25:43,286 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 5024 transitions. Word has length 200 [2021-12-14 18:25:43,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:25:43,286 INFO L470 AbstractCegarLoop]: Abstraction has 3475 states and 5024 transitions. [2021-12-14 18:25:43,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:25:43,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 5024 transitions. [2021-12-14 18:25:43,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-14 18:25:43,292 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:25:43,292 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:25:43,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:25:43,293 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:25:43,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:25:43,293 INFO L85 PathProgramCache]: Analyzing trace with hash -865446531, now seen corresponding path program 1 times [2021-12-14 18:25:43,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:25:43,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370988399] [2021-12-14 18:25:43,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:25:43,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:25:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:25:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:25:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:25:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:25:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:25:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 18:25:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 18:25:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 18:25:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:25:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:25:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 18:25:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:25:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 18:25:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-14 18:25:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-14 18:25:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-14 18:25:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:43,517 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-12-14 18:25:43,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:25:43,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370988399] [2021-12-14 18:25:43,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370988399] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:25:43,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:25:43,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 18:25:43,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016049142] [2021-12-14 18:25:43,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:25:43,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 18:25:43,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:25:43,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 18:25:43,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-14 18:25:43,519 INFO L87 Difference]: Start difference. First operand 3475 states and 5024 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:25:53,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:25:53,197 INFO L93 Difference]: Finished difference Result 10279 states and 15227 transitions. [2021-12-14 18:25:53,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 18:25:53,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 241 [2021-12-14 18:25:53,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:25:53,225 INFO L225 Difference]: With dead ends: 10279 [2021-12-14 18:25:53,226 INFO L226 Difference]: Without dead ends: 6851 [2021-12-14 18:25:53,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-12-14 18:25:53,236 INFO L933 BasicCegarLoop]: 3870 mSDtfsCounter, 7602 mSDsluCounter, 5341 mSDsCounter, 0 mSdLazyCounter, 6781 mSolverCounterSat, 6981 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7966 SdHoareTripleChecker+Valid, 9211 SdHoareTripleChecker+Invalid, 13762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6981 IncrementalHoareTripleChecker+Valid, 6781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:25:53,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7966 Valid, 9211 Invalid, 13762 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6981 Valid, 6781 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2021-12-14 18:25:53,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2021-12-14 18:25:53,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 5563. [2021-12-14 18:25:53,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 3737 states have (on average 1.3492105967353492) internal successors, (5042), 3929 states have internal predecessors, (5042), 1513 states have call successors, (1513), 313 states have call predecessors, (1513), 312 states have return successors, (1512), 1456 states have call predecessors, (1512), 1512 states have call successors, (1512) [2021-12-14 18:25:53,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 8067 transitions. [2021-12-14 18:25:53,518 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 8067 transitions. Word has length 241 [2021-12-14 18:25:53,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:25:53,519 INFO L470 AbstractCegarLoop]: Abstraction has 5563 states and 8067 transitions. [2021-12-14 18:25:53,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:25:53,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 8067 transitions. [2021-12-14 18:25:53,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-12-14 18:25:53,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:25:53,525 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:25:53,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 18:25:53,525 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:25:53,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:25:53,526 INFO L85 PathProgramCache]: Analyzing trace with hash -351603514, now seen corresponding path program 1 times [2021-12-14 18:25:53,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:25:53,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904791870] [2021-12-14 18:25:53,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:25:53,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:25:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:25:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:25:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:25:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:25:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:25:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 18:25:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 18:25:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 18:25:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:25:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:25:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 18:25:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:25:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 18:25:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 18:25:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-14 18:25:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-14 18:25:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:53,911 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-12-14 18:25:53,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:25:53,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904791870] [2021-12-14 18:25:53,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904791870] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 18:25:53,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253535368] [2021-12-14 18:25:53,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:25:53,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:25:53,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:25:53,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 18:25:53,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 18:25:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:54,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-14 18:25:54,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:25:54,990 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-12-14 18:25:54,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:25:54,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253535368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:25:54,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 18:25:54,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2021-12-14 18:25:54,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454563241] [2021-12-14 18:25:54,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:25:54,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:25:54,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:25:54,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:25:54,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-14 18:25:54,992 INFO L87 Difference]: Start difference. First operand 5563 states and 8067 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-14 18:25:55,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:25:55,315 INFO L93 Difference]: Finished difference Result 11117 states and 16142 transitions. [2021-12-14 18:25:55,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:25:55,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 240 [2021-12-14 18:25:55,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:25:55,343 INFO L225 Difference]: With dead ends: 11117 [2021-12-14 18:25:55,344 INFO L226 Difference]: Without dead ends: 5567 [2021-12-14 18:25:55,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 304 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-12-14 18:25:55,358 INFO L933 BasicCegarLoop]: 3177 mSDtfsCounter, 6 mSDsluCounter, 12687 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15864 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:25:55,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 15864 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 18:25:55,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5567 states.