./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-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.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 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 04:01:12,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 04:01:12,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 04:01:12,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 04:01:12,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 04:01:12,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 04:01:12,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 04:01:12,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 04:01:12,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 04:01:12,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 04:01:12,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 04:01:12,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 04:01:12,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 04:01:12,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 04:01:12,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 04:01:12,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 04:01:12,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 04:01:12,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 04:01:12,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 04:01:12,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 04:01:12,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 04:01:12,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 04:01:12,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 04:01:12,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 04:01:12,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 04:01:12,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 04:01:12,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 04:01:12,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 04:01:12,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 04:01:12,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 04:01:12,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 04:01:12,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 04:01:12,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 04:01:12,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 04:01:12,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 04:01:12,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 04:01:12,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 04:01:12,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 04:01:12,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 04:01:12,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 04:01:12,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 04:01:12,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 04:01:12,652 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 04:01:12,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 04:01:12,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 04:01:12,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 04:01:12,654 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 04:01:12,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 04:01:12,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 04:01:12,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 04:01:12,655 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 04:01:12,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 04:01:12,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 04:01:12,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 04:01:12,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 04:01:12,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 04:01:12,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 04:01:12,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 04:01:12,656 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 04:01:12,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 04:01:12,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 04:01:12,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 04:01:12,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 04:01:12,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:01:12,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 04:01:12,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 04:01:12,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 04:01:12,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 04:01:12,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 04:01:12,658 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 04:01:12,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 04:01:12,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 04:01:12,659 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 04:01:12,659 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b [2021-11-17 04:01:12,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 04:01:12,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 04:01:12,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 04:01:12,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 04:01:12,901 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 04:01:12,901 INFO L432 ainManager$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-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-17 04:01:12,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5fad99c3/5b4ecc029aca486a948f2c6345dde62d/FLAG07b7f7dba [2021-11-17 04:01:13,496 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 04:01:13,497 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-17 04:01:13,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5fad99c3/5b4ecc029aca486a948f2c6345dde62d/FLAG07b7f7dba [2021-11-17 04:01:13,719 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5fad99c3/5b4ecc029aca486a948f2c6345dde62d [2021-11-17 04:01:13,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 04:01:13,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 04:01:13,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 04:01:13,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 04:01:13,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 04:01:13,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:01:13" (1/1) ... [2021-11-17 04:01:13,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e5587c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:13, skipping insertion in model container [2021-11-17 04:01:13,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:01:13" (1/1) ... [2021-11-17 04:01:13,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 04:01:13,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 04:01:14,236 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-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-17 04:01:14,338 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:01:14,363 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 04:01:14,524 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-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-17 04:01:14,561 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:01:14,605 INFO L208 MainTranslator]: Completed translation [2021-11-17 04:01:14,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14 WrapperNode [2021-11-17 04:01:14,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 04:01:14,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 04:01:14,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 04:01:14,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 04:01:14,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14" (1/1) ... [2021-11-17 04:01:14,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14" (1/1) ... [2021-11-17 04:01:14,725 INFO L137 Inliner]: procedures = 117, calls = 568, calls flagged for inlining = 30, calls inlined = 25, statements flattened = 1071 [2021-11-17 04:01:14,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 04:01:14,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 04:01:14,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 04:01:14,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 04:01:14,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14" (1/1) ... [2021-11-17 04:01:14,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14" (1/1) ... [2021-11-17 04:01:14,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14" (1/1) ... [2021-11-17 04:01:14,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14" (1/1) ... [2021-11-17 04:01:14,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14" (1/1) ... [2021-11-17 04:01:14,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14" (1/1) ... [2021-11-17 04:01:14,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14" (1/1) ... [2021-11-17 04:01:14,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 04:01:14,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 04:01:14,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 04:01:14,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 04:01:14,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14" (1/1) ... [2021-11-17 04:01:14,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:01:14,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:01:14,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 04:01:14,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 04:01:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 04:01:14,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 04:01:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 04:01:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 04:01:14,948 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 04:01:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2021-11-17 04:01:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2021-11-17 04:01:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-11-17 04:01:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-11-17 04:01:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 04:01:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 04:01:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 04:01:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 04:01:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 04:01:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 04:01:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 04:01:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 04:01:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2021-11-17 04:01:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2021-11-17 04:01:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 04:01:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 04:01:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 04:01:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 04:01:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 04:01:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 04:01:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2021-11-17 04:01:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2021-11-17 04:01:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 04:01:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 04:01:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 04:01:15,187 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 04:01:15,189 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 04:01:15,251 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 04:01:15,846 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 04:01:15,855 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 04:01:15,855 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 04:01:15,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:01:15 BoogieIcfgContainer [2021-11-17 04:01:15,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 04:01:15,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 04:01:15,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 04:01:15,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 04:01:15,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 04:01:13" (1/3) ... [2021-11-17 04:01:15,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee91c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:01:15, skipping insertion in model container [2021-11-17 04:01:15,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:01:14" (2/3) ... [2021-11-17 04:01:15,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee91c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:01:15, skipping insertion in model container [2021-11-17 04:01:15,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:01:15" (3/3) ... [2021-11-17 04:01:15,863 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-17 04:01:15,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 04:01:15,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 04:01:15,909 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 04:01:15,915 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 04:01:15,915 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 04:01:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 141 states have (on average 1.4539007092198581) internal successors, (205), 157 states have internal predecessors, (205), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-17 04:01:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-17 04:01:15,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:01:15,953 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:01:15,954 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:01:15,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:01:15,959 INFO L85 PathProgramCache]: Analyzing trace with hash 665515163, now seen corresponding path program 1 times [2021-11-17 04:01:15,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:01:15,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003501502] [2021-11-17 04:01:15,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:01:15,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:01:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:01:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:01:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:01:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:01:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:01:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:01:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 04:01:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:16,690 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-17 04:01:16,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:01:16,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003501502] [2021-11-17 04:01:16,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003501502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:01:16,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:01:16,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 04:01:16,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193956649] [2021-11-17 04:01:16,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:01:16,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 04:01:16,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:01:16,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 04:01:16,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-17 04:01:16,738 INFO L87 Difference]: Start difference. First operand has 186 states, 141 states have (on average 1.4539007092198581) internal successors, (205), 157 states have internal predecessors, (205), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:16,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:01:16,969 INFO L93 Difference]: Finished difference Result 367 states and 532 transitions. [2021-11-17 04:01:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 04:01:16,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 118 [2021-11-17 04:01:16,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:01:16,986 INFO L225 Difference]: With dead ends: 367 [2021-11-17 04:01:16,987 INFO L226 Difference]: Without dead ends: 170 [2021-11-17 04:01:16,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-17 04:01:16,999 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 22 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:01:17,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 613 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 04:01:17,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-17 04:01:17,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-11-17 04:01:17,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 136 states have (on average 1.3823529411764706) internal successors, (188), 141 states have internal predecessors, (188), 25 states have call successors, (25), 9 states have call predecessors, (25), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-17 04:01:17,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 232 transitions. [2021-11-17 04:01:17,062 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 232 transitions. Word has length 118 [2021-11-17 04:01:17,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:01:17,062 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 232 transitions. [2021-11-17 04:01:17,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:17,063 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 232 transitions. [2021-11-17 04:01:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-17 04:01:17,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:01:17,069 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:01:17,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 04:01:17,069 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:01:17,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:01:17,070 INFO L85 PathProgramCache]: Analyzing trace with hash -96288345, now seen corresponding path program 1 times [2021-11-17 04:01:17,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:01:17,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53036673] [2021-11-17 04:01:17,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:01:17,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:01:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:01:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:01:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:01:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:01:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:01:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:01:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 04:01:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-17 04:01:17,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:01:17,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53036673] [2021-11-17 04:01:17,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53036673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:01:17,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:01:17,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:01:17,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113645990] [2021-11-17 04:01:17,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:01:17,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:01:17,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:01:17,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:01:17,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:01:17,457 INFO L87 Difference]: Start difference. First operand 170 states and 232 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:17,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:01:17,686 INFO L93 Difference]: Finished difference Result 435 states and 600 transitions. [2021-11-17 04:01:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:01:17,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 118 [2021-11-17 04:01:17,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:01:17,689 INFO L225 Difference]: With dead ends: 435 [2021-11-17 04:01:17,689 INFO L226 Difference]: Without dead ends: 283 [2021-11-17 04:01:17,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:01:17,690 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 198 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:01:17,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 752 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 04:01:17,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-17 04:01:17,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 269. [2021-11-17 04:01:17,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 221 states have (on average 1.420814479638009) internal successors, (314), 226 states have internal predecessors, (314), 34 states have call successors, (34), 14 states have call predecessors, (34), 13 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-17 04:01:17,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 376 transitions. [2021-11-17 04:01:17,705 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 376 transitions. Word has length 118 [2021-11-17 04:01:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:01:17,705 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 376 transitions. [2021-11-17 04:01:17,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 376 transitions. [2021-11-17 04:01:17,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-17 04:01:17,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:01:17,707 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:01:17,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 04:01:17,707 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:01:17,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:01:17,708 INFO L85 PathProgramCache]: Analyzing trace with hash -358901924, now seen corresponding path program 1 times [2021-11-17 04:01:17,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:01:17,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415136090] [2021-11-17 04:01:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:01:17,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:01:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:01:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:01:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:01:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:01:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:01:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:01:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:17,942 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-17 04:01:17,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:01:17,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415136090] [2021-11-17 04:01:17,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415136090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:01:17,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:01:17,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:01:17,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695948496] [2021-11-17 04:01:17,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:01:17,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:01:17,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:01:17,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:01:17,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:01:17,946 INFO L87 Difference]: Start difference. First operand 269 states and 376 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-17 04:01:18,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:01:18,233 INFO L93 Difference]: Finished difference Result 730 states and 1030 transitions. [2021-11-17 04:01:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:01:18,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 117 [2021-11-17 04:01:18,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:01:18,238 INFO L225 Difference]: With dead ends: 730 [2021-11-17 04:01:18,238 INFO L226 Difference]: Without dead ends: 479 [2021-11-17 04:01:18,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:01:18,241 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 188 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:01:18,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 868 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 04:01:18,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2021-11-17 04:01:18,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 475. [2021-11-17 04:01:18,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 399 states have (on average 1.4335839598997493) internal successors, (572), 404 states have internal predecessors, (572), 52 states have call successors, (52), 24 states have call predecessors, (52), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-11-17 04:01:18,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 670 transitions. [2021-11-17 04:01:18,301 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 670 transitions. Word has length 117 [2021-11-17 04:01:18,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:01:18,303 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 670 transitions. [2021-11-17 04:01:18,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-17 04:01:18,303 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 670 transitions. [2021-11-17 04:01:18,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-17 04:01:18,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:01:18,305 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:01:18,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 04:01:18,306 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:01:18,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:01:18,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1959898998, now seen corresponding path program 1 times [2021-11-17 04:01:18,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:01:18,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487981040] [2021-11-17 04:01:18,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:01:18,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:01:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:01:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:01:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:01:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:01:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:01:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:01:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 04:01:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,599 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-17 04:01:18,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:01:18,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487981040] [2021-11-17 04:01:18,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487981040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:01:18,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:01:18,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:01:18,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67550150] [2021-11-17 04:01:18,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:01:18,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:01:18,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:01:18,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:01:18,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:01:18,605 INFO L87 Difference]: Start difference. First operand 475 states and 670 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:01:18,799 INFO L93 Difference]: Finished difference Result 477 states and 671 transitions. [2021-11-17 04:01:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:01:18,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 137 [2021-11-17 04:01:18,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:01:18,802 INFO L225 Difference]: With dead ends: 477 [2021-11-17 04:01:18,802 INFO L226 Difference]: Without dead ends: 474 [2021-11-17 04:01:18,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:01:18,803 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 198 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:01:18,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 559 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 04:01:18,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-11-17 04:01:18,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2021-11-17 04:01:18,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 399 states have (on average 1.431077694235589) internal successors, (571), 403 states have internal predecessors, (571), 51 states have call successors, (51), 24 states have call predecessors, (51), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-11-17 04:01:18,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 668 transitions. [2021-11-17 04:01:18,816 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 668 transitions. Word has length 137 [2021-11-17 04:01:18,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:01:18,816 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 668 transitions. [2021-11-17 04:01:18,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:18,817 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 668 transitions. [2021-11-17 04:01:18,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-17 04:01:18,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:01:18,818 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:01:18,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 04:01:18,818 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:01:18,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:01:18,819 INFO L85 PathProgramCache]: Analyzing trace with hash 627340524, now seen corresponding path program 1 times [2021-11-17 04:01:18,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:01:18,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615569957] [2021-11-17 04:01:18,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:01:18,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:01:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:01:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:01:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:01:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:01:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:01:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:01:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 04:01:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-17 04:01:19,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:01:19,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615569957] [2021-11-17 04:01:19,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615569957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:01:19,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:01:19,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:01:19,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470459228] [2021-11-17 04:01:19,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:01:19,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:01:19,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:01:19,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:01:19,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:01:19,079 INFO L87 Difference]: Start difference. First operand 474 states and 668 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:19,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:01:19,195 INFO L93 Difference]: Finished difference Result 476 states and 669 transitions. [2021-11-17 04:01:19,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:01:19,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 138 [2021-11-17 04:01:19,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:01:19,198 INFO L225 Difference]: With dead ends: 476 [2021-11-17 04:01:19,199 INFO L226 Difference]: Without dead ends: 473 [2021-11-17 04:01:19,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:01:19,200 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 215 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 04:01:19,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 390 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 04:01:19,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-11-17 04:01:19,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2021-11-17 04:01:19,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 399 states have (on average 1.4285714285714286) internal successors, (570), 402 states have internal predecessors, (570), 50 states have call successors, (50), 24 states have call predecessors, (50), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-11-17 04:01:19,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 666 transitions. [2021-11-17 04:01:19,212 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 666 transitions. Word has length 138 [2021-11-17 04:01:19,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:01:19,213 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 666 transitions. [2021-11-17 04:01:19,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 666 transitions. [2021-11-17 04:01:19,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-17 04:01:19,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:01:19,214 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:01:19,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 04:01:19,215 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:01:19,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:01:19,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2027261639, now seen corresponding path program 1 times [2021-11-17 04:01:19,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:01:19,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660602857] [2021-11-17 04:01:19,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:01:19,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:01:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:01:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:01:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:01:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:01:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:01:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:01:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 04:01:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-17 04:01:19,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:01:19,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660602857] [2021-11-17 04:01:19,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660602857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:01:19,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:01:19,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:01:19,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775201399] [2021-11-17 04:01:19,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:01:19,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:01:19,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:01:19,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:01:19,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:01:19,441 INFO L87 Difference]: Start difference. First operand 473 states and 666 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:19,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:01:19,709 INFO L93 Difference]: Finished difference Result 475 states and 667 transitions. [2021-11-17 04:01:19,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:01:19,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 139 [2021-11-17 04:01:19,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:01:19,712 INFO L225 Difference]: With dead ends: 475 [2021-11-17 04:01:19,712 INFO L226 Difference]: Without dead ends: 472 [2021-11-17 04:01:19,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:01:19,713 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 192 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:01:19,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 551 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 04:01:19,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-11-17 04:01:19,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2021-11-17 04:01:19,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 399 states have (on average 1.4260651629072683) internal successors, (569), 401 states have internal predecessors, (569), 49 states have call successors, (49), 24 states have call predecessors, (49), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-11-17 04:01:19,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 664 transitions. [2021-11-17 04:01:19,727 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 664 transitions. Word has length 139 [2021-11-17 04:01:19,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:01:19,727 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 664 transitions. [2021-11-17 04:01:19,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:19,728 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 664 transitions. [2021-11-17 04:01:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-17 04:01:19,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:01:19,729 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:01:19,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 04:01:19,729 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:01:19,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:01:19,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1579422095, now seen corresponding path program 1 times [2021-11-17 04:01:19,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:01:19,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200285219] [2021-11-17 04:01:19,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:01:19,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:01:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:01:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:01:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:01:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:01:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:01:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:01:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 04:01:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:19,932 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-17 04:01:19,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:01:19,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200285219] [2021-11-17 04:01:19,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200285219] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:01:19,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:01:19,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:01:19,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890492652] [2021-11-17 04:01:19,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:01:19,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:01:19,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:01:19,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:01:19,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:01:19,934 INFO L87 Difference]: Start difference. First operand 472 states and 664 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:20,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:01:20,145 INFO L93 Difference]: Finished difference Result 1334 states and 1900 transitions. [2021-11-17 04:01:20,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:01:20,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 140 [2021-11-17 04:01:20,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:01:20,151 INFO L225 Difference]: With dead ends: 1334 [2021-11-17 04:01:20,151 INFO L226 Difference]: Without dead ends: 886 [2021-11-17 04:01:20,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:01:20,153 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 235 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:01:20,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 589 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 04:01:20,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-11-17 04:01:20,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 880. [2021-11-17 04:01:20,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 751 states have (on average 1.4394141145139814) internal successors, (1081), 753 states have internal predecessors, (1081), 87 states have call successors, (87), 44 states have call predecessors, (87), 41 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2021-11-17 04:01:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1252 transitions. [2021-11-17 04:01:20,191 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1252 transitions. Word has length 140 [2021-11-17 04:01:20,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:01:20,191 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 1252 transitions. [2021-11-17 04:01:20,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:01:20,192 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1252 transitions. [2021-11-17 04:01:20,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-17 04:01:20,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:01:20,193 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-11-17 04:01:20,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 04:01:20,194 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:01:20,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:01:20,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1050241138, now seen corresponding path program 1 times [2021-11-17 04:01:20,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:01:20,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505245159] [2021-11-17 04:01:20,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:01:20,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:01:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:01:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:01:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:01:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:01:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:01:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:01:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 04:01:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 04:01:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 04:01:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,417 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-17 04:01:20,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:01:20,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505245159] [2021-11-17 04:01:20,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505245159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:01:20,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:01:20,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:01:20,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812893868] [2021-11-17 04:01:20,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:01:20,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:01:20,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:01:20,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:01:20,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:01:20,419 INFO L87 Difference]: Start difference. First operand 880 states and 1252 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-17 04:01:20,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:01:20,769 INFO L93 Difference]: Finished difference Result 1730 states and 2467 transitions. [2021-11-17 04:01:20,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 04:01:20,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 159 [2021-11-17 04:01:20,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:01:20,773 INFO L225 Difference]: With dead ends: 1730 [2021-11-17 04:01:20,773 INFO L226 Difference]: Without dead ends: 882 [2021-11-17 04:01:20,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-17 04:01:20,775 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 232 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:01:20,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1090 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 04:01:20,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-11-17 04:01:20,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 877. [2021-11-17 04:01:20,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 749 states have (on average 1.4352469959946594) internal successors, (1075), 751 states have internal predecessors, (1075), 86 states have call successors, (86), 43 states have call predecessors, (86), 41 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2021-11-17 04:01:20,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1243 transitions. [2021-11-17 04:01:20,807 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1243 transitions. Word has length 159 [2021-11-17 04:01:20,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:01:20,807 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1243 transitions. [2021-11-17 04:01:20,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-17 04:01:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1243 transitions. [2021-11-17 04:01:20,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-17 04:01:20,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:01:20,809 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:01:20,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 04:01:20,810 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:01:20,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:01:20,810 INFO L85 PathProgramCache]: Analyzing trace with hash 296332059, now seen corresponding path program 1 times [2021-11-17 04:01:20,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:01:20,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277256780] [2021-11-17 04:01:20,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:01:20,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:01:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:01:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:01:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:01:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:01:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:20,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:01:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:01:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 04:01:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 04:01:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 04:01:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-11-17 04:01:21,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:01:21,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277256780] [2021-11-17 04:01:21,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277256780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:01:21,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:01:21,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 04:01:21,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106367448] [2021-11-17 04:01:21,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:01:21,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 04:01:21,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:01:21,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 04:01:21,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-17 04:01:21,071 INFO L87 Difference]: Start difference. First operand 877 states and 1243 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-17 04:01:21,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:01:21,363 INFO L93 Difference]: Finished difference Result 2355 states and 3452 transitions. [2021-11-17 04:01:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 04:01:21,364 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 164 [2021-11-17 04:01:21,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:01:21,369 INFO L225 Difference]: With dead ends: 2355 [2021-11-17 04:01:21,369 INFO L226 Difference]: Without dead ends: 1510 [2021-11-17 04:01:21,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-11-17 04:01:21,372 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 431 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 3204 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:01:21,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 3204 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 04:01:21,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2021-11-17 04:01:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 879. [2021-11-17 04:01:21,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 752 states have (on average 1.4308510638297873) internal successors, (1076), 753 states have internal predecessors, (1076), 85 states have call successors, (85), 43 states have call predecessors, (85), 41 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2021-11-17 04:01:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1243 transitions. [2021-11-17 04:01:21,411 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1243 transitions. Word has length 164 [2021-11-17 04:01:21,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:01:21,412 INFO L470 AbstractCegarLoop]: Abstraction has 879 states and 1243 transitions. [2021-11-17 04:01:21,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-17 04:01:21,412 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1243 transitions. [2021-11-17 04:01:21,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-17 04:01:21,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:01:21,414 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:01:21,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 04:01:21,414 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:01:21,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:01:21,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1563381600, now seen corresponding path program 1 times [2021-11-17 04:01:21,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:01:21,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348285324] [2021-11-17 04:01:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:01:21,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:01:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:01:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:01:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:01:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:01:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:01:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:01:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 04:01:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:01:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:01:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 04:01:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 04:01:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 04:01:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:01:21,621 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-11-17 04:01:21,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:01:21,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348285324] [2021-11-17 04:01:21,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348285324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:01:21,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:01:21,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 04:01:21,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604485728] [2021-11-17 04:01:21,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:01:21,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 04:01:21,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:01:21,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 04:01:21,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:01:21,623 INFO L87 Difference]: Start difference. First operand 879 states and 1243 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 04:01:21,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:01:21,836 INFO L93 Difference]: Finished difference Result 1190 states and 1736 transitions. [2021-11-17 04:01:21,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 04:01:21,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 171 [2021-11-17 04:01:21,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:01:21,837 INFO L225 Difference]: With dead ends: 1190 [2021-11-17 04:01:21,837 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 04:01:21,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-17 04:01:21,839 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 437 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:01:21,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 1390 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 04:01:21,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 04:01:21,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 04:01:21,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 04:01:21,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 04:01:21,840 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2021-11-17 04:01:21,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:01:21,841 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 04:01:21,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 04:01:21,841 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 04:01:21,841 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 04:01:21,843 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 04:01:21,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 04:01:21,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-17 04:01:23,444 INFO L861 garLoopResultBuilder]: At program point usbnet_disconnectENTRY(lines 7015 7017) the Hoare annotation is: true [2021-11-17 04:01:23,445 INFO L858 garLoopResultBuilder]: For program point usbnet_disconnectFINAL(lines 7015 7017) no Hoare annotation was computed. [2021-11-17 04:01:23,445 INFO L858 garLoopResultBuilder]: For program point usbnet_disconnectEXIT(lines 7015 7017) no Hoare annotation was computed. [2021-11-17 04:01:23,445 INFO L858 garLoopResultBuilder]: For program point ldv_mutex_lock_udevFINAL(lines 6853 6863) no Hoare annotation was computed. [2021-11-17 04:01:23,445 INFO L854 garLoopResultBuilder]: At program point ldv_mutex_lock_udevENTRY(lines 6853 6863) the Hoare annotation is: (or (not (= |old(~ldv_mutex_udev~0)| 1)) (not (= ~ldv_mutex_lock~0 1)) (not (= ~ldv_mutex_i_mutex_of_inode~0 1)) (not (= 1 ~ldv_mutex_mutex_of_device~0)) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,445 INFO L858 garLoopResultBuilder]: For program point L6856-1(lines 6856 6859) no Hoare annotation was computed. [2021-11-17 04:01:23,445 INFO L858 garLoopResultBuilder]: For program point L6856(lines 6856 6859) no Hoare annotation was computed. [2021-11-17 04:01:23,445 INFO L854 garLoopResultBuilder]: At program point L6857(line 6857) the Hoare annotation is: (or (not (= |old(~ldv_mutex_udev~0)| 1)) (not (= ~ldv_mutex_lock~0 1)) (not (= ~ldv_mutex_i_mutex_of_inode~0 1)) (not (= 1 ~ldv_mutex_mutex_of_device~0))) [2021-11-17 04:01:23,445 INFO L858 garLoopResultBuilder]: For program point ldv_mutex_lock_udevEXIT(lines 6853 6863) no Hoare annotation was computed. [2021-11-17 04:01:23,445 INFO L858 garLoopResultBuilder]: For program point L5762-1(line 5762) no Hoare annotation was computed. [2021-11-17 04:01:23,445 INFO L858 garLoopResultBuilder]: For program point ldv_init_zallocFINAL(lines 5757 5767) no Hoare annotation was computed. [2021-11-17 04:01:23,445 INFO L858 garLoopResultBuilder]: For program point ldv_init_zallocEXIT(lines 5757 5767) no Hoare annotation was computed. [2021-11-17 04:01:23,445 INFO L854 garLoopResultBuilder]: At program point ldv_init_zallocENTRY(lines 5757 5767) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_mutex_lock~0 1))) (.cse1 (not (= ~ldv_mutex_udev~0 1))) (.cse2 (not (= ~ldv_mutex_i_mutex_of_inode~0 1))) (.cse3 (not (= 1 ~ldv_mutex_mutex_of_device~0))) (.cse4 (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_0~0 1))) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_6~0 0))))) [2021-11-17 04:01:23,445 INFO L858 garLoopResultBuilder]: For program point L5764-1(line 5764) no Hoare annotation was computed. [2021-11-17 04:01:23,446 INFO L854 garLoopResultBuilder]: At program point L5762(line 5762) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_mutex_lock~0 1))) (.cse1 (not (= ~ldv_mutex_udev~0 1))) (.cse2 (= |#memory_int| |old(#memory_int)|)) (.cse3 (not (= ~ldv_mutex_i_mutex_of_inode~0 1))) (.cse4 (not (= 1 ~ldv_mutex_mutex_of_device~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_6~0 0))) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_0~0 1))))) [2021-11-17 04:01:23,446 INFO L861 garLoopResultBuilder]: At program point L5764(line 5764) the Hoare annotation is: true [2021-11-17 04:01:23,446 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 5720 5722) the Hoare annotation is: true [2021-11-17 04:01:23,446 INFO L858 garLoopResultBuilder]: For program point L5721-2(lines 5720 5722) no Hoare annotation was computed. [2021-11-17 04:01:23,446 INFO L858 garLoopResultBuilder]: For program point L5721(line 5721) no Hoare annotation was computed. [2021-11-17 04:01:23,446 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5720 5722) no Hoare annotation was computed. [2021-11-17 04:01:23,446 INFO L861 garLoopResultBuilder]: At program point ldv_undef_intENTRY(lines 5776 5783) the Hoare annotation is: true [2021-11-17 04:01:23,446 INFO L858 garLoopResultBuilder]: For program point ldv_undef_intFINAL(lines 5776 5783) no Hoare annotation was computed. [2021-11-17 04:01:23,447 INFO L858 garLoopResultBuilder]: For program point ldv_undef_intEXIT(lines 5776 5783) no Hoare annotation was computed. [2021-11-17 04:01:23,447 INFO L858 garLoopResultBuilder]: For program point ldv_errorFINAL(lines 6329 6335) no Hoare annotation was computed. [2021-11-17 04:01:23,447 INFO L861 garLoopResultBuilder]: At program point ldv_errorENTRY(lines 6329 6335) the Hoare annotation is: true [2021-11-17 04:01:23,447 INFO L858 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-17 04:01:23,447 INFO L858 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 6329 6335) no Hoare annotation was computed. [2021-11-17 04:01:23,447 INFO L858 garLoopResultBuilder]: For program point ldv_stopEXIT(lines 5792 5798) no Hoare annotation was computed. [2021-11-17 04:01:23,447 INFO L861 garLoopResultBuilder]: At program point ldv_stopENTRY(lines 5792 5798) the Hoare annotation is: true [2021-11-17 04:01:23,447 INFO L858 garLoopResultBuilder]: For program point L6047(lines 6047 6062) no Hoare annotation was computed. [2021-11-17 04:01:23,447 INFO L858 garLoopResultBuilder]: For program point L6080-2(lines 6067 6122) no Hoare annotation was computed. [2021-11-17 04:01:23,448 INFO L858 garLoopResultBuilder]: For program point L6113(lines 6113 6116) no Hoare annotation was computed. [2021-11-17 04:01:23,448 INFO L858 garLoopResultBuilder]: For program point L6080(lines 6080 6085) no Hoare annotation was computed. [2021-11-17 04:01:23,448 INFO L854 garLoopResultBuilder]: At program point L7005(lines 7004 7006) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,448 INFO L858 garLoopResultBuilder]: For program point L6213(line 6213) no Hoare annotation was computed. [2021-11-17 04:01:23,448 INFO L854 garLoopResultBuilder]: At program point L6081(line 6081) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,448 INFO L858 garLoopResultBuilder]: For program point L6081-1(line 6081) no Hoare annotation was computed. [2021-11-17 04:01:23,448 INFO L858 garLoopResultBuilder]: For program point L6973(lines 6964 6982) no Hoare annotation was computed. [2021-11-17 04:01:23,448 INFO L861 garLoopResultBuilder]: At program point L6214(line 6214) the Hoare annotation is: true [2021-11-17 04:01:23,449 INFO L854 garLoopResultBuilder]: At program point L6974(line 6974) the Hoare annotation is: false [2021-11-17 04:01:23,449 INFO L858 garLoopResultBuilder]: For program point L6049(lines 6049 6059) no Hoare annotation was computed. [2021-11-17 04:01:23,449 INFO L858 garLoopResultBuilder]: For program point L6050(line 6050) no Hoare annotation was computed. [2021-11-17 04:01:23,449 INFO L858 garLoopResultBuilder]: For program point L5852(lines 5852 5855) no Hoare annotation was computed. [2021-11-17 04:01:23,449 INFO L858 garLoopResultBuilder]: For program point L6051(lines 6051 6055) no Hoare annotation was computed. [2021-11-17 04:01:23,449 INFO L854 garLoopResultBuilder]: At program point L7009(lines 7008 7010) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,449 INFO L858 garLoopResultBuilder]: For program point L6184(line 6184) no Hoare annotation was computed. [2021-11-17 04:01:23,449 INFO L858 garLoopResultBuilder]: For program point L6052-1(line 6052) no Hoare annotation was computed. [2021-11-17 04:01:23,449 INFO L854 garLoopResultBuilder]: At program point L6052(line 6052) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,450 INFO L854 garLoopResultBuilder]: At program point L5953(lines 5948 5955) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,450 INFO L861 garLoopResultBuilder]: At program point L6977(lines 6962 6983) the Hoare annotation is: true [2021-11-17 04:01:23,450 INFO L858 garLoopResultBuilder]: For program point L6185(lines 6185 6200) no Hoare annotation was computed. [2021-11-17 04:01:23,450 INFO L854 garLoopResultBuilder]: At program point L6978(line 6978) the Hoare annotation is: false [2021-11-17 04:01:23,450 INFO L858 garLoopResultBuilder]: For program point L6945-1(line 6945) no Hoare annotation was computed. [2021-11-17 04:01:23,450 INFO L854 garLoopResultBuilder]: At program point L6945(line 6945) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,450 INFO L854 garLoopResultBuilder]: At program point L6318(lines 6307 6320) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,450 INFO L854 garLoopResultBuilder]: At program point L6087(line 6087) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,451 INFO L858 garLoopResultBuilder]: For program point L6087-1(line 6087) no Hoare annotation was computed. [2021-11-17 04:01:23,451 INFO L854 garLoopResultBuilder]: At program point L6153(lines 6002 6228) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,451 INFO L858 garLoopResultBuilder]: For program point L6120(line 6120) no Hoare annotation was computed. [2021-11-17 04:01:23,451 INFO L858 garLoopResultBuilder]: For program point L6946(lines 6946 6952) no Hoare annotation was computed. [2021-11-17 04:01:23,451 INFO L858 garLoopResultBuilder]: For program point L6187(lines 6187 6197) no Hoare annotation was computed. [2021-11-17 04:01:23,451 INFO L858 garLoopResultBuilder]: For program point L6220(line 6220) no Hoare annotation was computed. [2021-11-17 04:01:23,451 INFO L861 garLoopResultBuilder]: At program point L6121(line 6121) the Hoare annotation is: true [2021-11-17 04:01:23,451 INFO L858 garLoopResultBuilder]: For program point L6947-1(line 6947) no Hoare annotation was computed. [2021-11-17 04:01:23,451 INFO L854 garLoopResultBuilder]: At program point L6947(line 6947) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,452 INFO L854 garLoopResultBuilder]: At program point L7013(lines 7012 7014) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_lock~0 1) (= 2 ~ldv_mutex_udev~0) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0)) [2021-11-17 04:01:23,452 INFO L861 garLoopResultBuilder]: At program point L6221(line 6221) the Hoare annotation is: true [2021-11-17 04:01:23,452 INFO L858 garLoopResultBuilder]: For program point L6188(line 6188) no Hoare annotation was computed. [2021-11-17 04:01:23,452 INFO L854 garLoopResultBuilder]: At program point L5858(lines 5843 5860) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,452 INFO L858 garLoopResultBuilder]: For program point L6189(lines 6189 6193) no Hoare annotation was computed. [2021-11-17 04:01:23,452 INFO L858 garLoopResultBuilder]: For program point L6057(line 6057) no Hoare annotation was computed. [2021-11-17 04:01:23,452 INFO L854 garLoopResultBuilder]: At program point L6223(lines 6002 6228) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,452 INFO L854 garLoopResultBuilder]: At program point L6190(line 6190) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,452 INFO L861 garLoopResultBuilder]: At program point L6058(line 6058) the Hoare annotation is: true [2021-11-17 04:01:23,452 INFO L858 garLoopResultBuilder]: For program point L6190-1(line 6190) no Hoare annotation was computed. [2021-11-17 04:01:23,452 INFO L854 garLoopResultBuilder]: At program point L6950(line 6950) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,453 INFO L858 garLoopResultBuilder]: For program point L6917-1(lines 6917 6920) no Hoare annotation was computed. [2021-11-17 04:01:23,453 INFO L858 garLoopResultBuilder]: For program point L6950-1(line 6950) no Hoare annotation was computed. [2021-11-17 04:01:23,453 INFO L858 garLoopResultBuilder]: For program point L6917(lines 6917 6920) no Hoare annotation was computed. [2021-11-17 04:01:23,453 INFO L854 garLoopResultBuilder]: At program point L6918(line 6918) the Hoare annotation is: false [2021-11-17 04:01:23,453 INFO L854 garLoopResultBuilder]: At program point L6951(lines 6940 6954) the Hoare annotation is: (let ((.cse0 (= 1 ~ldv_mutex_mutex_of_device~0)) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 1)) (.cse2 (= ~ldv_mutex_lock~0 1))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) .cse2 (= 2 ~ldv_mutex_udev~0)) (and .cse0 .cse1 .cse2 (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 1) 0) (= ~ldv_mutex_udev~0 1)))) [2021-11-17 04:01:23,453 INFO L854 garLoopResultBuilder]: At program point L5960(lines 5956 5962) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,453 INFO L858 garLoopResultBuilder]: For program point L6159(line 6159) no Hoare annotation was computed. [2021-11-17 04:01:23,453 INFO L858 garLoopResultBuilder]: For program point L6027(lines 6027 6222) no Hoare annotation was computed. [2021-11-17 04:01:23,453 INFO L858 garLoopResultBuilder]: For program point L6093(line 6093) no Hoare annotation was computed. [2021-11-17 04:01:23,453 INFO L854 garLoopResultBuilder]: At program point L6985(lines 6984 6986) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_lock~0 1) (= 2 ~ldv_mutex_udev~0) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0)) [2021-11-17 04:01:23,454 INFO L858 garLoopResultBuilder]: For program point L6127(line 6127) no Hoare annotation was computed. [2021-11-17 04:01:23,454 INFO L858 garLoopResultBuilder]: For program point L6094(lines 6094 6098) no Hoare annotation was computed. [2021-11-17 04:01:23,454 INFO L861 garLoopResultBuilder]: At program point L6160(line 6160) the Hoare annotation is: true [2021-11-17 04:01:23,454 INFO L858 garLoopResultBuilder]: For program point L6028(line 6028) no Hoare annotation was computed. [2021-11-17 04:01:23,454 INFO L854 garLoopResultBuilder]: At program point L6326(lines 6321 6328) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,454 INFO L861 garLoopResultBuilder]: At program point L6227(lines 5979 6229) the Hoare annotation is: true [2021-11-17 04:01:23,454 INFO L858 garLoopResultBuilder]: For program point L6128(lines 6128 6164) no Hoare annotation was computed. [2021-11-17 04:01:23,454 INFO L858 garLoopResultBuilder]: For program point L6029(lines 6029 6044) no Hoare annotation was computed. [2021-11-17 04:01:23,454 INFO L854 garLoopResultBuilder]: At program point L7020(lines 7019 7021) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,454 INFO L858 garLoopResultBuilder]: For program point L6195(line 6195) no Hoare annotation was computed. [2021-11-17 04:01:23,454 INFO L854 garLoopResultBuilder]: At program point L6922(lines 6914 6924) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_lock~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,454 INFO L854 garLoopResultBuilder]: At program point L6988(lines 6987 6989) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,454 INFO L858 garLoopResultBuilder]: For program point L6130(lines 6130 6161) no Hoare annotation was computed. [2021-11-17 04:01:23,454 INFO L861 garLoopResultBuilder]: At program point L6196(line 6196) the Hoare annotation is: true [2021-11-17 04:01:23,455 INFO L858 garLoopResultBuilder]: For program point L6031(lines 6031 6041) no Hoare annotation was computed. [2021-11-17 04:01:23,455 INFO L858 garLoopResultBuilder]: For program point L6064(line 6064) no Hoare annotation was computed. [2021-11-17 04:01:23,455 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-17 04:01:23,455 INFO L854 garLoopResultBuilder]: At program point L6296(lines 6291 6298) the Hoare annotation is: (let ((.cse0 (= 1 ~ldv_mutex_mutex_of_device~0)) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 1)) (.cse2 (= ~ldv_mutex_lock~0 1))) (or (and .cse0 .cse1 .cse2 (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 1) 0) (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 1) 0) (= ~ldv_mutex_udev~0 1)) (and .cse0 .cse1 (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) .cse2 (= 2 ~ldv_mutex_udev~0) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0)))) [2021-11-17 04:01:23,455 INFO L858 garLoopResultBuilder]: For program point L6131(line 6131) no Hoare annotation was computed. [2021-11-17 04:01:23,455 INFO L858 garLoopResultBuilder]: For program point L6065(lines 6065 6125) no Hoare annotation was computed. [2021-11-17 04:01:23,455 INFO L858 garLoopResultBuilder]: For program point L6032(line 6032) no Hoare annotation was computed. [2021-11-17 04:01:23,455 INFO L858 garLoopResultBuilder]: For program point L6132(lines 6132 6137) no Hoare annotation was computed. [2021-11-17 04:01:23,455 INFO L858 garLoopResultBuilder]: For program point L6033(lines 6033 6037) no Hoare annotation was computed. [2021-11-17 04:01:23,456 INFO L854 garLoopResultBuilder]: At program point L7024(lines 7023 7025) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,456 INFO L858 garLoopResultBuilder]: For program point L6166(line 6166) no Hoare annotation was computed. [2021-11-17 04:01:23,456 INFO L858 garLoopResultBuilder]: For program point L6067(lines 6067 6122) no Hoare annotation was computed. [2021-11-17 04:01:23,456 INFO L858 garLoopResultBuilder]: For program point L6100(line 6100) no Hoare annotation was computed. [2021-11-17 04:01:23,456 INFO L854 garLoopResultBuilder]: At program point L6959(lines 6955 6961) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_lock~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,456 INFO L854 garLoopResultBuilder]: At program point L6992(lines 6991 6993) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,456 INFO L858 garLoopResultBuilder]: For program point L6167(lines 6167 6182) no Hoare annotation was computed. [2021-11-17 04:01:23,456 INFO L858 garLoopResultBuilder]: For program point L6101(lines 6101 6108) no Hoare annotation was computed. [2021-11-17 04:01:23,456 INFO L858 garLoopResultBuilder]: For program point L6068(line 6068) no Hoare annotation was computed. [2021-11-17 04:01:23,457 INFO L854 garLoopResultBuilder]: At program point L6003(line 6003) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,457 INFO L858 garLoopResultBuilder]: For program point L6003-1(line 6003) no Hoare annotation was computed. [2021-11-17 04:01:23,457 INFO L858 garLoopResultBuilder]: For program point L6069(lines 6069 6077) no Hoare annotation was computed. [2021-11-17 04:01:23,457 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-17 04:01:23,457 INFO L858 garLoopResultBuilder]: For program point L6202(line 6202) no Hoare annotation was computed. [2021-11-17 04:01:23,457 INFO L858 garLoopResultBuilder]: For program point L6103(lines 6103 6106) no Hoare annotation was computed. [2021-11-17 04:01:23,457 INFO L858 garLoopResultBuilder]: For program point L6169(lines 6169 6179) no Hoare annotation was computed. [2021-11-17 04:01:23,457 INFO L854 garLoopResultBuilder]: At program point L7028(lines 7027 7029) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,457 INFO L854 garLoopResultBuilder]: At program point L5773(lines 5768 5775) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,458 INFO L858 garLoopResultBuilder]: For program point L6203(lines 6203 6218) no Hoare annotation was computed. [2021-11-17 04:01:23,458 INFO L858 garLoopResultBuilder]: For program point L6170(line 6170) no Hoare annotation was computed. [2021-11-17 04:01:23,458 INFO L858 garLoopResultBuilder]: For program point L6071(lines 6071 6075) no Hoare annotation was computed. [2021-11-17 04:01:23,458 INFO L854 garLoopResultBuilder]: At program point L6005(line 6005) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,458 INFO L858 garLoopResultBuilder]: For program point L6005-1(line 6005) no Hoare annotation was computed. [2021-11-17 04:01:23,458 INFO L858 garLoopResultBuilder]: For program point L6171(lines 6171 6175) no Hoare annotation was computed. [2021-11-17 04:01:23,458 INFO L858 garLoopResultBuilder]: For program point L6039(line 6039) no Hoare annotation was computed. [2021-11-17 04:01:23,458 INFO L854 garLoopResultBuilder]: At program point L6304(lines 6299 6306) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_lock~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,458 INFO L858 garLoopResultBuilder]: For program point L6139(line 6139) no Hoare annotation was computed. [2021-11-17 04:01:23,459 INFO L858 garLoopResultBuilder]: For program point L6172-1(line 6172) no Hoare annotation was computed. [2021-11-17 04:01:23,459 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-17 04:01:23,459 INFO L858 garLoopResultBuilder]: For program point L6205(lines 6205 6215) no Hoare annotation was computed. [2021-11-17 04:01:23,459 INFO L854 garLoopResultBuilder]: At program point L6172(line 6172) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,459 INFO L854 garLoopResultBuilder]: At program point L6007(line 6007) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,459 INFO L858 garLoopResultBuilder]: For program point L6007-1(line 6007) no Hoare annotation was computed. [2021-11-17 04:01:23,459 INFO L854 garLoopResultBuilder]: At program point L5974(line 5974) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,459 INFO L861 garLoopResultBuilder]: At program point L6040(line 6040) the Hoare annotation is: true [2021-11-17 04:01:23,460 INFO L858 garLoopResultBuilder]: For program point L5974-1(line 5974) no Hoare annotation was computed. [2021-11-17 04:01:23,460 INFO L858 garLoopResultBuilder]: For program point L6965-1(lines 6964 6982) no Hoare annotation was computed. [2021-11-17 04:01:23,460 INFO L858 garLoopResultBuilder]: For program point L6965(lines 6965 6968) no Hoare annotation was computed. [2021-11-17 04:01:23,460 INFO L858 garLoopResultBuilder]: For program point L6206(line 6206) no Hoare annotation was computed. [2021-11-17 04:01:23,460 INFO L858 garLoopResultBuilder]: For program point L6140(lines 6140 6157) no Hoare annotation was computed. [2021-11-17 04:01:23,460 INFO L854 garLoopResultBuilder]: At program point L6966(line 6966) the Hoare annotation is: false [2021-11-17 04:01:23,460 INFO L858 garLoopResultBuilder]: For program point L6207(lines 6207 6211) no Hoare annotation was computed. [2021-11-17 04:01:23,460 INFO L854 garLoopResultBuilder]: At program point L6009(line 6009) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,460 INFO L858 garLoopResultBuilder]: For program point L6009-1(line 6009) no Hoare annotation was computed. [2021-11-17 04:01:23,461 INFO L854 garLoopResultBuilder]: At program point L5976(lines 5970 5978) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,461 INFO L858 garLoopResultBuilder]: For program point L6208-1(line 6208) no Hoare annotation was computed. [2021-11-17 04:01:23,461 INFO L858 garLoopResultBuilder]: For program point L6142(lines 6142 6150) no Hoare annotation was computed. [2021-11-17 04:01:23,461 INFO L854 garLoopResultBuilder]: At program point L6208(line 6208) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,461 INFO L858 garLoopResultBuilder]: For program point L6142-2(lines 6140 6156) no Hoare annotation was computed. [2021-11-17 04:01:23,461 INFO L858 garLoopResultBuilder]: For program point L6110(line 6110) no Hoare annotation was computed. [2021-11-17 04:01:23,461 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-17 04:01:23,461 INFO L854 garLoopResultBuilder]: At program point L6011(line 6011) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,461 INFO L854 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,461 INFO L858 garLoopResultBuilder]: For program point L6011-1(line 6011) no Hoare annotation was computed. [2021-11-17 04:01:23,462 INFO L858 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-11-17 04:01:23,462 INFO L858 garLoopResultBuilder]: For program point L6969(lines 6964 6982) no Hoare annotation was computed. [2021-11-17 04:01:23,462 INFO L858 garLoopResultBuilder]: For program point L6111(lines 6111 6118) no Hoare annotation was computed. [2021-11-17 04:01:23,462 INFO L858 garLoopResultBuilder]: For program point L6177(line 6177) no Hoare annotation was computed. [2021-11-17 04:01:23,462 INFO L854 garLoopResultBuilder]: At program point L6970(line 6970) the Hoare annotation is: false [2021-11-17 04:01:23,462 INFO L861 garLoopResultBuilder]: At program point L6178(line 6178) the Hoare annotation is: true [2021-11-17 04:01:23,462 INFO L858 garLoopResultBuilder]: For program point L6079(line 6079) no Hoare annotation was computed. [2021-11-17 04:01:23,462 INFO L858 garLoopResultBuilder]: For program point L6046(line 6046) no Hoare annotation was computed. [2021-11-17 04:01:23,462 INFO L854 garLoopResultBuilder]: At program point L6013(line 6013) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-17 04:01:23,463 INFO L858 garLoopResultBuilder]: For program point L6013-1(line 6013) no Hoare annotation was computed. [2021-11-17 04:01:23,463 INFO L854 garLoopResultBuilder]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_mutex_lock~0 1))) (.cse1 (not (= ~ldv_mutex_udev~0 1))) (.cse2 (= |#memory_int| |old(#memory_int)|)) (.cse3 (not (= ~ldv_mutex_i_mutex_of_inode~0 1))) (.cse4 (not (= 1 ~ldv_mutex_mutex_of_device~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_6~0 0))) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_0~0 1))))) [2021-11-17 04:01:23,463 INFO L858 garLoopResultBuilder]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed. [2021-11-17 04:01:23,463 INFO L858 garLoopResultBuilder]: For program point #Ultimate.meminitFINAL(line -1) no Hoare annotation was computed. [2021-11-17 04:01:23,463 INFO L861 garLoopResultBuilder]: At program point always_connectedENTRY(lines 5837 5842) the Hoare annotation is: true [2021-11-17 04:01:23,463 INFO L858 garLoopResultBuilder]: For program point always_connectedFINAL(lines 5837 5842) no Hoare annotation was computed. [2021-11-17 04:01:23,463 INFO L858 garLoopResultBuilder]: For program point always_connectedEXIT(lines 5837 5842) no Hoare annotation was computed. [2021-11-17 04:01:23,463 INFO L861 garLoopResultBuilder]: At program point ldv_undef_int_negativeENTRY(lines 6336 6349) the Hoare annotation is: true [2021-11-17 04:01:23,464 INFO L858 garLoopResultBuilder]: For program point L6343-1(lines 6343 6346) no Hoare annotation was computed. [2021-11-17 04:01:23,464 INFO L858 garLoopResultBuilder]: For program point L6343(lines 6343 6346) no Hoare annotation was computed. [2021-11-17 04:01:23,464 INFO L861 garLoopResultBuilder]: At program point L6344(line 6344) the Hoare annotation is: true [2021-11-17 04:01:23,464 INFO L858 garLoopResultBuilder]: For program point ldv_undef_int_negativeFINAL(lines 6336 6349) no Hoare annotation was computed. [2021-11-17 04:01:23,464 INFO L858 garLoopResultBuilder]: For program point L6341-1(line 6341) no Hoare annotation was computed. [2021-11-17 04:01:23,464 INFO L858 garLoopResultBuilder]: For program point ldv_undef_int_negativeEXIT(lines 6336 6349) no Hoare annotation was computed. [2021-11-17 04:01:23,464 INFO L861 garLoopResultBuilder]: At program point L6341(line 6341) the Hoare annotation is: true [2021-11-17 04:01:23,467 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:01:23,467 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-17 04:01:23,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 04:01:23 BoogieIcfgContainer [2021-11-17 04:01:23,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-17 04:01:23,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-17 04:01:23,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-17 04:01:23,490 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-17 04:01:23,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:01:15" (3/4) ... [2021-11-17 04:01:23,492 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-17 04:01:23,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure usbnet_disconnect [2021-11-17 04:01:23,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2021-11-17 04:01:23,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_udev [2021-11-17 04:01:23,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2021-11-17 04:01:23,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_init_zalloc [2021-11-17 04:01:23,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-17 04:01:23,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int [2021-11-17 04:01:23,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2021-11-17 04:01:23,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure always_connected [2021-11-17 04:01:23,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int_negative [2021-11-17 04:01:23,514 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2021-11-17 04:01:23,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-17 04:01:23,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-17 04:01:23,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-17 04:01:23,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-17 04:01:23,538 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 [2021-11-17 04:01:23,538 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 [2021-11-17 04:01:23,538 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) || ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && ldv_mutex_udev == 1) [2021-11-17 04:01:23,538 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 [2021-11-17 04:01:23,539 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && \result + 1 <= 0) && ldv_mutex_udev == 1) || (((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0) [2021-11-17 04:01:23,540 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0 [2021-11-17 04:01:23,540 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0 [2021-11-17 04:01:23,698 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-17 04:01:23,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-17 04:01:23,699 INFO L158 Benchmark]: Toolchain (without parser) took 9976.31ms. Allocated memory was 115.3MB in the beginning and 404.8MB in the end (delta: 289.4MB). Free memory was 82.5MB in the beginning and 145.2MB in the end (delta: -62.7MB). Peak memory consumption was 223.2MB. Max. memory is 16.1GB. [2021-11-17 04:01:23,699 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-17 04:01:23,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 883.85ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 82.5MB in the beginning and 93.4MB in the end (delta: -10.8MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2021-11-17 04:01:23,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.58ms. Allocated memory is still 163.6MB. Free memory was 93.4MB in the beginning and 85.7MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-17 04:01:23,699 INFO L158 Benchmark]: Boogie Preprocessor took 87.69ms. Allocated memory is still 163.6MB. Free memory was 85.0MB in the beginning and 76.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-17 04:01:23,700 INFO L158 Benchmark]: RCFGBuilder took 1042.77ms. Allocated memory is still 163.6MB. Free memory was 76.6MB in the beginning and 91.1MB in the end (delta: -14.5MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2021-11-17 04:01:23,700 INFO L158 Benchmark]: TraceAbstraction took 7630.74ms. Allocated memory was 163.6MB in the beginning and 404.8MB in the end (delta: 241.2MB). Free memory was 91.1MB in the beginning and 301.3MB in the end (delta: -210.2MB). Peak memory consumption was 228.0MB. Max. memory is 16.1GB. [2021-11-17 04:01:23,700 INFO L158 Benchmark]: Witness Printer took 209.02ms. Allocated memory is still 404.8MB. Free memory was 301.3MB in the beginning and 145.2MB in the end (delta: 156.1MB). Peak memory consumption was 153.1MB. Max. memory is 16.1GB. [2021-11-17 04:01:23,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 883.85ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 82.5MB in the beginning and 93.4MB in the end (delta: -10.8MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.58ms. Allocated memory is still 163.6MB. Free memory was 93.4MB in the beginning and 85.7MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.69ms. Allocated memory is still 163.6MB. Free memory was 85.0MB in the beginning and 76.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1042.77ms. Allocated memory is still 163.6MB. Free memory was 76.6MB in the beginning and 91.1MB in the end (delta: -14.5MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7630.74ms. Allocated memory was 163.6MB in the beginning and 404.8MB in the end (delta: 241.2MB). Free memory was 91.1MB in the beginning and 301.3MB in the end (delta: -210.2MB). Peak memory consumption was 228.0MB. Max. memory is 16.1GB. * Witness Printer took 209.02ms. Allocated memory is still 404.8MB. Free memory was 301.3MB in the beginning and 145.2MB in the end (delta: 156.1MB). Peak memory consumption was 153.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 187 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 10, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2427 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2348 mSDsluCounter, 10006 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7121 mSDsCounter, 519 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 903 IncrementalHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 519 mSolverCounterUnsat, 2885 mSDtfsCounter, 903 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 505 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=880occurred in iteration=7, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 660 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 567 PreInvPairs, 725 NumberOfFragments, 882 HoareAnnotationTreeSize, 567 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 70 FomulaSimplificationsInter, 7371 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1401 NumberOfCodeBlocks, 1401 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1391 ConstructedInterpolants, 0 QuantifiedInterpolants, 2506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 2713/2713 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7008]: Loop Invariant Derived loop invariant: (((ldv_state_variable_0 == 1 && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 7019]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 7027]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5970]: Loop Invariant Derived loop invariant: (((ldv_state_variable_0 == 1 && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6914]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6299]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6955]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 5956]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6987]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_state_variable_6 == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5979]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5792]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6940]: Loop Invariant Derived loop invariant: ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) || ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && ldv_mutex_udev == 1) - InvariantResult [Line: 6984]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0 - InvariantResult [Line: 7023]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 7004]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5843]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6321]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5768]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_state_variable_6 == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6962]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6307]: Loop Invariant Derived loop invariant: (((ldv_state_variable_0 == 1 && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_state_variable_6 == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6291]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && \result + 1 <= 0) && ldv_mutex_udev == 1) || (((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0) - InvariantResult [Line: 6991]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 7012]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0 - InvariantResult [Line: 5948]: Loop Invariant Derived loop invariant: (((ldv_state_variable_0 == 1 && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 RESULT: Ultimate proved your program to be correct! [2021-11-17 04:01:23,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE