./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--serial--mos7840.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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--serial--mos7840.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 c1586642bef6980141a60942369684a3359f9fff4af003e79a9c46b72c273d5b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:39:24,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:39:24,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:39:24,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:39:24,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:39:24,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:39:24,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:39:24,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:39:24,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:39:24,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:39:24,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:39:24,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:39:24,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:39:24,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:39:24,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:39:24,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:39:24,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:39:24,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:39:24,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:39:24,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:39:24,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:39:24,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:39:24,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:39:24,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:39:24,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:39:24,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:39:24,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:39:24,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:39:24,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:39:24,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:39:24,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:39:24,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:39:24,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:39:24,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:39:24,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:39:24,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:39:24,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:39:24,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:39:24,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:39:24,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:39:24,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:39:24,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:39:24,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:39:24,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:39:24,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:39:24,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:39:24,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:39:24,655 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:39:24,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:39:24,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:39:24,656 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:39:24,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:39:24,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:39:24,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:39:24,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:39:24,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:39:24,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:39:24,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:39:24,657 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:39:24,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:39:24,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:39:24,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:39:24,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:39:24,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:39:24,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:39:24,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:39:24,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:39:24,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:39:24,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:39:24,660 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:39:24,660 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:39:24,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:39:24,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:39:24,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1586642bef6980141a60942369684a3359f9fff4af003e79a9c46b72c273d5b [2021-12-16 04:39:24,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:39:24,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:39:24,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:39:24,877 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:39:24,878 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:39:24,878 INFO L432 ainManager$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--serial--mos7840.ko-entry_point.cil.out.i [2021-12-16 04:39:24,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adf8ac32c/c1799dd4a376495bbe7592f1c52ac424/FLAG259f74d16 [2021-12-16 04:39:25,491 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:39:25,492 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--serial--mos7840.ko-entry_point.cil.out.i [2021-12-16 04:39:25,522 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adf8ac32c/c1799dd4a376495bbe7592f1c52ac424/FLAG259f74d16 [2021-12-16 04:39:25,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adf8ac32c/c1799dd4a376495bbe7592f1c52ac424 [2021-12-16 04:39:25,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:39:25,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:39:25,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:39:25,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:39:25,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:39:25,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:39:25" (1/1) ... [2021-12-16 04:39:25,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c88cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:25, skipping insertion in model container [2021-12-16 04:39:25,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:39:25" (1/1) ... [2021-12-16 04:39:25,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:39:25,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:39:26,809 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--serial--mos7840.ko-entry_point.cil.out.i[297800,297813] [2021-12-16 04:39:26,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:39:26,878 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:39:27,252 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--serial--mos7840.ko-entry_point.cil.out.i[297800,297813] [2021-12-16 04:39:27,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:39:27,289 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:39:27,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27 WrapperNode [2021-12-16 04:39:27,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:39:27,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:39:27,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:39:27,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:39:27,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27" (1/1) ... [2021-12-16 04:39:27,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27" (1/1) ... [2021-12-16 04:39:27,530 INFO L137 Inliner]: procedures = 191, calls = 3778, calls flagged for inlining = 80, calls inlined = 67, statements flattened = 6858 [2021-12-16 04:39:27,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:39:27,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:39:27,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:39:27,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:39:27,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27" (1/1) ... [2021-12-16 04:39:27,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27" (1/1) ... [2021-12-16 04:39:27,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27" (1/1) ... [2021-12-16 04:39:27,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27" (1/1) ... [2021-12-16 04:39:27,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27" (1/1) ... [2021-12-16 04:39:27,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27" (1/1) ... [2021-12-16 04:39:27,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27" (1/1) ... [2021-12-16 04:39:27,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:39:27,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:39:27,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:39:27,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:39:27,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27" (1/1) ... [2021-12-16 04:39:27,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:39:27,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:39:27,811 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) [2021-12-16 04:39:27,826 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 [2021-12-16 04:39:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_port_probe [2021-12-16 04:39:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_port_probe [2021-12-16 04:39:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:39:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_reg_sync [2021-12-16 04:39:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_reg_sync [2021-12-16 04:39:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-12-16 04:39:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-12-16 04:39:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_reg_sync [2021-12-16 04:39:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_reg_sync [2021-12-16 04:39:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:39:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:39:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:39:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:39:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:39:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 04:39:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 04:39:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_write [2021-12-16 04:39:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_write [2021-12-16 04:39:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-16 04:39:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-16 04:39:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_ioctl [2021-12-16 04:39:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_ioctl [2021-12-16 04:39:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_tiocmiwait [2021-12-16 04:39:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_tiocmiwait [2021-12-16 04:39:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 04:39:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 04:39:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2021-12-16 04:39:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2021-12-16 04:39:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-16 04:39:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-16 04:39:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:39:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:39:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_port_private [2021-12-16 04:39:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_port_private [2021-12-16 04:39:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-16 04:39:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-16 04:39:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 04:39:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 04:39:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-16 04:39:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-16 04:39:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_uart_reg [2021-12-16 04:39:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_uart_reg [2021-12-16 04:39:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-16 04:39:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-16 04:39:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:39:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:39:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2021-12-16 04:39:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2021-12-16 04:39:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_usb_serial [2021-12-16 04:39:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_usb_serial [2021-12-16 04:39:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_get_icount [2021-12-16 04:39:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_get_icount [2021-12-16 04:39:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:39:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_led_async [2021-12-16 04:39:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_led_async [2021-12-16 04:39:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-16 04:39:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-16 04:39:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-16 04:39:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-16 04:39:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:39:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:39:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_termios [2021-12-16 04:39:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_termios [2021-12-16 04:39:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:39:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:39:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_led_sync [2021-12-16 04:39:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_led_sync [2021-12-16 04:39:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_3 [2021-12-16 04:39:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_3 [2021-12-16 04:39:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:39:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:39:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-16 04:39:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-16 04:39:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:39:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:39:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_chars_in_buffer [2021-12-16 04:39:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_chars_in_buffer [2021-12-16 04:39:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:39:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-16 04:39:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-16 04:39:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_throttle [2021-12-16 04:39:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_throttle [2021-12-16 04:39:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-16 04:39:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-16 04:39:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:39:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2021-12-16 04:39:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2021-12-16 04:39:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-16 04:39:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-16 04:39:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:39:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:39:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-12-16 04:39:27,850 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-12-16 04:39:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit_lock [2021-12-16 04:39:27,850 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit_lock [2021-12-16 04:39:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_uart_reg [2021-12-16 04:39:27,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_uart_reg [2021-12-16 04:39:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:39:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-16 04:39:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-16 04:39:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-16 04:39:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-16 04:39:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-16 04:39:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-16 04:39:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-16 04:39:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-16 04:39:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_port_paranoia_check [2021-12-16 04:39:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_port_paranoia_check [2021-12-16 04:39:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_serial_paranoia_check [2021-12-16 04:39:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_serial_paranoia_check [2021-12-16 04:39:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:39:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:39:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_led_activity [2021-12-16 04:39:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_led_activity [2021-12-16 04:39:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_bulk_in_callback [2021-12-16 04:39:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_bulk_in_callback [2021-12-16 04:39:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_write_room [2021-12-16 04:39:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_write_room [2021-12-16 04:39:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:39:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:39:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_calc_num_ports [2021-12-16 04:39:27,859 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_calc_num_ports [2021-12-16 04:39:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_break [2021-12-16 04:39:27,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_break [2021-12-16 04:39:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_tiocmset [2021-12-16 04:39:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_tiocmset [2021-12-16 04:39:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_tiocmget [2021-12-16 04:39:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_tiocmget [2021-12-16 04:39:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-16 04:39:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-16 04:39:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_port_private [2021-12-16 04:39:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_port_private [2021-12-16 04:39:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_unthrottle [2021-12-16 04:39:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_unthrottle [2021-12-16 04:39:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 04:39:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 04:39:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:39:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2021-12-16 04:39:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2021-12-16 04:39:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2021-12-16 04:39:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2021-12-16 04:39:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_port_remove [2021-12-16 04:39:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_port_remove [2021-12-16 04:39:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:39:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:39:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:39:28,494 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:39:28,496 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:39:30,238 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:39:33,569 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:39:33,589 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:39:33,589 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:39:33,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:39:33 BoogieIcfgContainer [2021-12-16 04:39:33,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:39:33,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:39:33,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:39:33,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:39:33,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:39:25" (1/3) ... [2021-12-16 04:39:33,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1239a02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:39:33, skipping insertion in model container [2021-12-16 04:39:33,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:39:27" (2/3) ... [2021-12-16 04:39:33,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1239a02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:39:33, skipping insertion in model container [2021-12-16 04:39:33,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:39:33" (3/3) ... [2021-12-16 04:39:33,598 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i [2021-12-16 04:39:33,602 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:39:33,602 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:39:33,649 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:39:33,653 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 [2021-12-16 04:39:33,654 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:39:33,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 1732 states, 1231 states have (on average 1.3899268887083671) internal successors, (1711), 1254 states have internal predecessors, (1711), 435 states have call successors, (435), 65 states have call predecessors, (435), 64 states have return successors, (430), 424 states have call predecessors, (430), 430 states have call successors, (430) [2021-12-16 04:39:33,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-16 04:39:33,727 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:39:33,728 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:39:33,728 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:39:33,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:39:33,733 INFO L85 PathProgramCache]: Analyzing trace with hash 2101310704, now seen corresponding path program 1 times [2021-12-16 04:39:33,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:39:33,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692468810] [2021-12-16 04:39:33,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:39:33,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:39:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:39:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:39:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:39:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:39:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 04:39:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 04:39:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 04:39:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 04:39:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 04:39:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 04:39:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-16 04:39:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-12-16 04:39:34,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:39:34,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692468810] [2021-12-16 04:39:34,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692468810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:39:34,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:39:34,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:39:34,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829233763] [2021-12-16 04:39:34,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:39:34,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:39:34,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:39:34,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:39:34,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:39:34,627 INFO L87 Difference]: Start difference. First operand has 1732 states, 1231 states have (on average 1.3899268887083671) internal successors, (1711), 1254 states have internal predecessors, (1711), 435 states have call successors, (435), 65 states have call predecessors, (435), 64 states have return successors, (430), 424 states have call predecessors, (430), 430 states have call successors, (430) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 04:39:45,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:39:45,284 INFO L93 Difference]: Finished difference Result 3655 states and 5610 transitions. [2021-12-16 04:39:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 04:39:45,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 161 [2021-12-16 04:39:45,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:39:45,311 INFO L225 Difference]: With dead ends: 3655 [2021-12-16 04:39:45,312 INFO L226 Difference]: Without dead ends: 1913 [2021-12-16 04:39:45,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:39:45,331 INFO L933 BasicCegarLoop]: 2446 mSDtfsCounter, 517 mSDsluCounter, 3645 mSDsCounter, 0 mSdLazyCounter, 2444 mSolverCounterSat, 1008 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 6091 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1008 IncrementalHoareTripleChecker+Valid, 2444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-12-16 04:39:45,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 6091 Invalid, 3452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1008 Valid, 2444 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2021-12-16 04:39:45,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1913 states. [2021-12-16 04:39:45,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1913 to 1717. [2021-12-16 04:39:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1223 states have (on average 1.3851185609157808) internal successors, (1694), 1239 states have internal predecessors, (1694), 430 states have call successors, (430), 64 states have call predecessors, (430), 63 states have return successors, (429), 423 states have call predecessors, (429), 429 states have call successors, (429) [2021-12-16 04:39:45,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2553 transitions. [2021-12-16 04:39:45,546 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2553 transitions. Word has length 161 [2021-12-16 04:39:45,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:39:45,546 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2553 transitions. [2021-12-16 04:39:45,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 04:39:45,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2553 transitions. [2021-12-16 04:39:45,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-16 04:39:45,555 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:39:45,555 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:39:45,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:39:45,556 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:39:45,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:39:45,557 INFO L85 PathProgramCache]: Analyzing trace with hash 146485736, now seen corresponding path program 1 times [2021-12-16 04:39:45,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:39:45,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906347868] [2021-12-16 04:39:45,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:39:45,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:39:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:39:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:39:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:39:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:39:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 04:39:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 04:39:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 04:39:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 04:39:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 04:39:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 04:39:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-16 04:39:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-12-16 04:39:45,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:39:45,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906347868] [2021-12-16 04:39:45,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906347868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:39:45,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:39:45,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:39:45,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940251068] [2021-12-16 04:39:45,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:39:45,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:39:45,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:39:45,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:39:45,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:39:45,956 INFO L87 Difference]: Start difference. First operand 1717 states and 2553 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-16 04:39:51,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:39:51,481 INFO L93 Difference]: Finished difference Result 3744 states and 5632 transitions. [2021-12-16 04:39:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:39:51,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 161 [2021-12-16 04:39:51,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:39:51,495 INFO L225 Difference]: With dead ends: 3744 [2021-12-16 04:39:51,495 INFO L226 Difference]: Without dead ends: 2059 [2021-12-16 04:39:51,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:39:51,506 INFO L933 BasicCegarLoop]: 2453 mSDtfsCounter, 1210 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 1630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 5891 SdHoareTripleChecker+Invalid, 3196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1630 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-16 04:39:51,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 5891 Invalid, 3196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1630 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-16 04:39:51,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2021-12-16 04:39:51,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 1853. [2021-12-16 04:39:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1325 states have (on average 1.3864150943396227) internal successors, (1837), 1350 states have internal predecessors, (1837), 449 states have call successors, (449), 79 states have call predecessors, (449), 78 states have return successors, (448), 436 states have call predecessors, (448), 448 states have call successors, (448) [2021-12-16 04:39:51,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2734 transitions. [2021-12-16 04:39:51,563 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2734 transitions. Word has length 161 [2021-12-16 04:39:51,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:39:51,564 INFO L470 AbstractCegarLoop]: Abstraction has 1853 states and 2734 transitions. [2021-12-16 04:39:51,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-16 04:39:51,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2734 transitions. [2021-12-16 04:39:51,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-16 04:39:51,566 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:39:51,567 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:39:51,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:39:51,567 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:39:51,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:39:51,567 INFO L85 PathProgramCache]: Analyzing trace with hash 189098090, now seen corresponding path program 1 times [2021-12-16 04:39:51,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:39:51,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966111068] [2021-12-16 04:39:51,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:39:51,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:39:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:39:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:39:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:39:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:39:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:39:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 04:39:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 04:39:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 04:39:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 04:39:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 04:39:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 04:39:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-16 04:39:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:39:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-16 04:39:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-16 04:39:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:39:51,995 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-12-16 04:39:51,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:39:51,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966111068] [2021-12-16 04:39:51,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966111068] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:39:51,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:39:51,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 04:39:51,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44915805] [2021-12-16 04:39:51,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:39:51,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 04:39:51,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:39:51,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 04:39:51,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-16 04:39:51,998 INFO L87 Difference]: Start difference. First operand 1853 states and 2734 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-16 04:40:08,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:40:08,382 INFO L93 Difference]: Finished difference Result 9819 states and 15076 transitions. [2021-12-16 04:40:08,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 04:40:08,383 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 170 [2021-12-16 04:40:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:40:08,421 INFO L225 Difference]: With dead ends: 9819 [2021-12-16 04:40:08,422 INFO L226 Difference]: Without dead ends: 8016 [2021-12-16 04:40:08,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2021-12-16 04:40:08,432 INFO L933 BasicCegarLoop]: 3600 mSDtfsCounter, 12035 mSDsluCounter, 8108 mSDsCounter, 0 mSdLazyCounter, 6715 mSolverCounterSat, 5840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12918 SdHoareTripleChecker+Valid, 11708 SdHoareTripleChecker+Invalid, 12555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5840 IncrementalHoareTripleChecker+Valid, 6715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2021-12-16 04:40:08,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12918 Valid, 11708 Invalid, 12555 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5840 Valid, 6715 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2021-12-16 04:40:08,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8016 states. [2021-12-16 04:40:08,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8016 to 7271. [2021-12-16 04:40:08,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7271 states, 5220 states have (on average 1.389272030651341) internal successors, (7252), 5317 states have internal predecessors, (7252), 1745 states have call successors, (1745), 296 states have call predecessors, (1745), 305 states have return successors, (1903), 1705 states have call predecessors, (1903), 1744 states have call successors, (1903) [2021-12-16 04:40:08,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7271 states to 7271 states and 10900 transitions. [2021-12-16 04:40:08,765 INFO L78 Accepts]: Start accepts. Automaton has 7271 states and 10900 transitions. Word has length 170 [2021-12-16 04:40:08,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:40:08,766 INFO L470 AbstractCegarLoop]: Abstraction has 7271 states and 10900 transitions. [2021-12-16 04:40:08,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-16 04:40:08,767 INFO L276 IsEmpty]: Start isEmpty. Operand 7271 states and 10900 transitions. [2021-12-16 04:40:08,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-16 04:40:08,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:40:08,768 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:40:08,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 04:40:08,769 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:40:08,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:40:08,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1930991079, now seen corresponding path program 1 times [2021-12-16 04:40:08,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:40:08,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403692339] [2021-12-16 04:40:08,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:40:08,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:40:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:40:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:40:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:40:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:40:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:40:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:40:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:40:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:40:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:40:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:40:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:40:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:40:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 04:40:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:40:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 04:40:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:40:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 04:40:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:40:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 04:40:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:40:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 04:40:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:40:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 04:40:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:40:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-16 04:40:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:40:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-16 04:40:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-16 04:40:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:40:09,173 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-12-16 04:40:09,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:40:09,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403692339] [2021-12-16 04:40:09,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403692339] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:40:09,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:40:09,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 04:40:09,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334530610] [2021-12-16 04:40:09,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:40:09,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 04:40:09,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:40:09,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 04:40:09,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-16 04:40:09,176 INFO L87 Difference]: Start difference. First operand 7271 states and 10900 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16)