./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:08:45,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:08:45,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:08:45,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:08:45,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:08:45,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:08:45,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:08:45,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:08:45,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:08:45,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:08:45,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:08:45,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:08:45,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:08:45,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:08:45,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:08:45,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:08:45,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:08:45,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:08:45,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:08:45,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:08:45,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:08:45,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:08:45,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:08:45,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:08:45,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:08:45,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:08:45,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:08:45,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:08:45,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:08:45,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:08:45,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:08:45,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:08:45,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:08:45,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:08:45,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:08:45,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:08:45,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:08:45,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:08:45,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:08:45,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:08:45,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:08:45,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:08:45,191 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:08:45,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:08:45,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:08:45,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:08:45,193 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:08:45,193 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:08:45,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:08:45,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:08:45,194 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:08:45,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:08:45,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:08:45,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:08:45,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:08:45,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:08:45,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:08:45,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:08:45,196 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:08:45,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:08:45,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:08:45,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:08:45,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:08:45,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:08:45,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:08:45,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:08:45,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:08:45,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:08:45,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:08:45,199 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:08:45,199 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:08:45,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:08:45,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:08:45,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b [2021-12-14 18:08:45,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:08:45,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:08:45,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:08:45,505 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:08:45,506 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:08:45,507 INFO L432 ainManager$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 [2021-12-14 18:08:45,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f28c242/18a0122e4d8542c0864b917ab333c0a9/FLAG45f6173a6 [2021-12-14 18:08:46,265 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:08:46,266 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 [2021-12-14 18:08:46,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f28c242/18a0122e4d8542c0864b917ab333c0a9/FLAG45f6173a6 [2021-12-14 18:08:46,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f28c242/18a0122e4d8542c0864b917ab333c0a9 [2021-12-14 18:08:46,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:08:46,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:08:46,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:08:46,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:08:46,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:08:46,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:08:46" (1/1) ... [2021-12-14 18:08:46,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7bbe3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:46, skipping insertion in model container [2021-12-14 18:08:46,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:08:46" (1/1) ... [2021-12-14 18:08:46,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:08:46,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:08:47,160 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] [2021-12-14 18:08:47,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:08:47,310 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:08:47,506 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] [2021-12-14 18:08:47,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:08:47,581 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:08:47,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47 WrapperNode [2021-12-14 18:08:47,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:08:47,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:08:47,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:08:47,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:08:47,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47" (1/1) ... [2021-12-14 18:08:47,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47" (1/1) ... [2021-12-14 18:08:47,719 INFO L137 Inliner]: procedures = 117, calls = 568, calls flagged for inlining = 30, calls inlined = 25, statements flattened = 1081 [2021-12-14 18:08:47,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:08:47,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:08:47,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:08:47,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:08:47,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47" (1/1) ... [2021-12-14 18:08:47,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47" (1/1) ... [2021-12-14 18:08:47,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47" (1/1) ... [2021-12-14 18:08:47,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47" (1/1) ... [2021-12-14 18:08:47,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47" (1/1) ... [2021-12-14 18:08:47,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47" (1/1) ... [2021-12-14 18:08:47,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47" (1/1) ... [2021-12-14 18:08:47,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:08:47,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:08:47,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:08:47,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:08:47,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47" (1/1) ... [2021-12-14 18:08:47,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:08:47,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:08:47,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 18:08:47,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 18:08:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:08:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:08:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:08:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:08:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:08:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2021-12-14 18:08:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2021-12-14 18:08:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-12-14 18:08:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-12-14 18:08:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:08:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:08:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:08:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:08:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:08:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:08:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:08:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:08:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2021-12-14 18:08:47,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2021-12-14 18:08:47,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:08:47,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:08:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:08:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:08:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:08:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:08:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2021-12-14 18:08:47,967 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2021-12-14 18:08:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:08:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:08:47,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:08:48,224 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:08:48,237 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:08:48,345 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:08:49,140 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:08:49,147 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:08:49,148 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:08:49,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:08:49 BoogieIcfgContainer [2021-12-14 18:08:49,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:08:49,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:08:49,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:08:49,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:08:49,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:08:46" (1/3) ... [2021-12-14 18:08:49,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae78b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:08:49, skipping insertion in model container [2021-12-14 18:08:49,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:08:47" (2/3) ... [2021-12-14 18:08:49,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae78b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:08:49, skipping insertion in model container [2021-12-14 18:08:49,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:08:49" (3/3) ... [2021-12-14 18:08:49,157 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-12-14 18:08:49,161 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:08:49,162 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:08:49,201 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:08:49,207 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 18:08:49,208 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:08:49,225 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) [2021-12-14 18:08:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-14 18:08:49,235 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:49,236 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] [2021-12-14 18:08:49,236 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:49,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:49,241 INFO L85 PathProgramCache]: Analyzing trace with hash 665515163, now seen corresponding path program 1 times [2021-12-14 18:08:49,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:49,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302671318] [2021-12-14 18:08:49,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:49,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:49,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:08:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:49,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:49,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:49,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:08:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:49,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:49,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:08:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:08:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:08:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:08:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:08:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-14 18:08:50,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:50,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302671318] [2021-12-14 18:08:50,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302671318] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:50,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:08:50,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:08:50,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565033153] [2021-12-14 18:08:50,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:50,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:08:50,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:50,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:08:50,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:08:50,211 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) [2021-12-14 18:08:50,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:50,427 INFO L93 Difference]: Finished difference Result 367 states and 532 transitions. [2021-12-14 18:08:50,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 18:08:50,430 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 [2021-12-14 18:08:50,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:50,439 INFO L225 Difference]: With dead ends: 367 [2021-12-14 18:08:50,440 INFO L226 Difference]: Without dead ends: 170 [2021-12-14 18:08:50,444 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 [2021-12-14 18:08:50,448 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 22 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2021-12-14 18:08:50,449 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] [2021-12-14 18:08:50,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-12-14 18:08:50,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-12-14 18:08:50,508 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) [2021-12-14 18:08:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 232 transitions. [2021-12-14 18:08:50,512 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 232 transitions. Word has length 118 [2021-12-14 18:08:50,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:50,512 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 232 transitions. [2021-12-14 18:08:50,513 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) [2021-12-14 18:08:50,513 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 232 transitions. [2021-12-14 18:08:50,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-14 18:08:50,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:50,517 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] [2021-12-14 18:08:50,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:08:50,518 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:50,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:50,519 INFO L85 PathProgramCache]: Analyzing trace with hash -96288345, now seen corresponding path program 1 times [2021-12-14 18:08:50,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:50,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338211859] [2021-12-14 18:08:50,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:50,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:08:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:08:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:08:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:08:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:50,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:08:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:08:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:08:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,067 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-14 18:08:51,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:51,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338211859] [2021-12-14 18:08:51,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338211859] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:51,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:08:51,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:08:51,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93419258] [2021-12-14 18:08:51,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:51,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:08:51,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:51,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:08:51,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:08:51,073 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) [2021-12-14 18:08:51,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:51,334 INFO L93 Difference]: Finished difference Result 435 states and 600 transitions. [2021-12-14 18:08:51,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:08:51,335 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 [2021-12-14 18:08:51,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:51,340 INFO L225 Difference]: With dead ends: 435 [2021-12-14 18:08:51,341 INFO L226 Difference]: Without dead ends: 283 [2021-12-14 18:08:51,343 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 [2021-12-14 18:08:51,345 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 [2021-12-14 18:08:51,349 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] [2021-12-14 18:08:51,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-12-14 18:08:51,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 269. [2021-12-14 18:08:51,382 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) [2021-12-14 18:08:51,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 376 transitions. [2021-12-14 18:08:51,385 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 376 transitions. Word has length 118 [2021-12-14 18:08:51,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:51,385 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 376 transitions. [2021-12-14 18:08:51,386 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) [2021-12-14 18:08:51,386 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 376 transitions. [2021-12-14 18:08:51,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-14 18:08:51,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:51,388 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] [2021-12-14 18:08:51,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:08:51,389 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:51,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:51,389 INFO L85 PathProgramCache]: Analyzing trace with hash -358901924, now seen corresponding path program 1 times [2021-12-14 18:08:51,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:51,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855265579] [2021-12-14 18:08:51,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:51,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:08:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:08:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:08:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:08:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:08:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:08:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:51,853 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-14 18:08:51,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:51,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855265579] [2021-12-14 18:08:51,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855265579] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:51,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:08:51,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:08:51,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323095929] [2021-12-14 18:08:51,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:51,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:08:51,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:51,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:08:51,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:08:51,858 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) [2021-12-14 18:08:52,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:52,152 INFO L93 Difference]: Finished difference Result 730 states and 1030 transitions. [2021-12-14 18:08:52,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:08:52,153 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 [2021-12-14 18:08:52,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:52,159 INFO L225 Difference]: With dead ends: 730 [2021-12-14 18:08:52,159 INFO L226 Difference]: Without dead ends: 479 [2021-12-14 18:08:52,161 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 [2021-12-14 18:08:52,164 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 [2021-12-14 18:08:52,169 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] [2021-12-14 18:08:52,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2021-12-14 18:08:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 475. [2021-12-14 18:08:52,208 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) [2021-12-14 18:08:52,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 670 transitions. [2021-12-14 18:08:52,213 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 670 transitions. Word has length 117 [2021-12-14 18:08:52,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:52,213 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 670 transitions. [2021-12-14 18:08:52,214 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) [2021-12-14 18:08:52,214 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 670 transitions. [2021-12-14 18:08:52,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-14 18:08:52,217 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:52,218 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] [2021-12-14 18:08:52,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:08:52,218 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:52,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:52,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1959898998, now seen corresponding path program 1 times [2021-12-14 18:08:52,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:52,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302307111] [2021-12-14 18:08:52,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:52,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:08:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:08:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:08:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:08:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:08:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:08:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 18:08:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:52,677 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-14 18:08:52,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:52,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302307111] [2021-12-14 18:08:52,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302307111] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:52,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:08:52,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:08:52,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133517558] [2021-12-14 18:08:52,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:52,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:08:52,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:52,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:08:52,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:08:52,681 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) [2021-12-14 18:08:52,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:52,863 INFO L93 Difference]: Finished difference Result 477 states and 671 transitions. [2021-12-14 18:08:52,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:08:52,864 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 [2021-12-14 18:08:52,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:52,867 INFO L225 Difference]: With dead ends: 477 [2021-12-14 18:08:52,868 INFO L226 Difference]: Without dead ends: 474 [2021-12-14 18:08:52,868 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 [2021-12-14 18:08:52,869 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 198 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:08:52,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 559 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 18:08:52,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-12-14 18:08:52,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2021-12-14 18:08:52,887 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) [2021-12-14 18:08:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 668 transitions. [2021-12-14 18:08:52,890 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 668 transitions. Word has length 137 [2021-12-14 18:08:52,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:52,891 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 668 transitions. [2021-12-14 18:08:52,891 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) [2021-12-14 18:08:52,892 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 668 transitions. [2021-12-14 18:08:52,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-14 18:08:52,893 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:52,893 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] [2021-12-14 18:08:52,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:08:52,894 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:52,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash 627340524, now seen corresponding path program 1 times [2021-12-14 18:08:52,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:52,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094981266] [2021-12-14 18:08:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:52,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:08:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:08:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:08:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:08:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:08:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:08:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 18:08:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,313 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-14 18:08:53,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:53,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094981266] [2021-12-14 18:08:53,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094981266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:53,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:08:53,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:08:53,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980299272] [2021-12-14 18:08:53,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:53,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:08:53,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:53,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:08:53,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:08:53,317 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) [2021-12-14 18:08:53,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:53,445 INFO L93 Difference]: Finished difference Result 476 states and 669 transitions. [2021-12-14 18:08:53,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:08:53,446 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 [2021-12-14 18:08:53,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:53,449 INFO L225 Difference]: With dead ends: 476 [2021-12-14 18:08:53,449 INFO L226 Difference]: Without dead ends: 473 [2021-12-14 18:08:53,450 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 [2021-12-14 18:08:53,451 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 [2021-12-14 18:08:53,451 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] [2021-12-14 18:08:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-12-14 18:08:53,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2021-12-14 18:08:53,469 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) [2021-12-14 18:08:53,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 666 transitions. [2021-12-14 18:08:53,472 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 666 transitions. Word has length 138 [2021-12-14 18:08:53,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:53,473 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 666 transitions. [2021-12-14 18:08:53,473 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) [2021-12-14 18:08:53,473 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 666 transitions. [2021-12-14 18:08:53,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-14 18:08:53,475 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:53,475 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] [2021-12-14 18:08:53,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:08:53,476 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:53,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:53,476 INFO L85 PathProgramCache]: Analyzing trace with hash -2027261639, now seen corresponding path program 1 times [2021-12-14 18:08:53,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:53,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890907292] [2021-12-14 18:08:53,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:53,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:08:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:08:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:08:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:08:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:08:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:08:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 18:08:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:53,893 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-14 18:08:53,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:53,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890907292] [2021-12-14 18:08:53,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890907292] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:53,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:08:53,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:08:53,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82169050] [2021-12-14 18:08:53,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:53,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:08:53,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:53,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:08:53,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:08:53,896 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) [2021-12-14 18:08:54,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:54,042 INFO L93 Difference]: Finished difference Result 475 states and 667 transitions. [2021-12-14 18:08:54,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:08:54,043 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 [2021-12-14 18:08:54,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:54,046 INFO L225 Difference]: With dead ends: 475 [2021-12-14 18:08:54,046 INFO L226 Difference]: Without dead ends: 472 [2021-12-14 18:08:54,046 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 [2021-12-14 18:08:54,047 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 192 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:08:54,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 551 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 18:08:54,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-12-14 18:08:54,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2021-12-14 18:08:54,066 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) [2021-12-14 18:08:54,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 664 transitions. [2021-12-14 18:08:54,069 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 664 transitions. Word has length 139 [2021-12-14 18:08:54,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:54,070 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 664 transitions. [2021-12-14 18:08:54,070 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) [2021-12-14 18:08:54,070 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 664 transitions. [2021-12-14 18:08:54,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-14 18:08:54,072 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:54,072 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] [2021-12-14 18:08:54,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:08:54,073 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:54,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:54,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1579422095, now seen corresponding path program 1 times [2021-12-14 18:08:54,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:54,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633844046] [2021-12-14 18:08:54,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:54,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:08:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:08:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:08:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:08:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:08:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:08:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 18:08:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-14 18:08:54,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:54,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633844046] [2021-12-14 18:08:54,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633844046] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:54,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:08:54,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:08:54,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613958366] [2021-12-14 18:08:54,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:54,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:08:54,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:54,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:08:54,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:08:54,502 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) [2021-12-14 18:08:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:54,715 INFO L93 Difference]: Finished difference Result 1334 states and 1900 transitions. [2021-12-14 18:08:54,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:08:54,716 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 [2021-12-14 18:08:54,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:54,722 INFO L225 Difference]: With dead ends: 1334 [2021-12-14 18:08:54,722 INFO L226 Difference]: Without dead ends: 886 [2021-12-14 18:08:54,723 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 [2021-12-14 18:08:54,724 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 [2021-12-14 18:08:54,724 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] [2021-12-14 18:08:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-12-14 18:08:54,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 880. [2021-12-14 18:08:54,755 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) [2021-12-14 18:08:54,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1252 transitions. [2021-12-14 18:08:54,761 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1252 transitions. Word has length 140 [2021-12-14 18:08:54,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:54,761 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 1252 transitions. [2021-12-14 18:08:54,762 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) [2021-12-14 18:08:54,762 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1252 transitions. [2021-12-14 18:08:54,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-14 18:08:54,764 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:54,764 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] [2021-12-14 18:08:54,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 18:08:54,765 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:54,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:54,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1050241138, now seen corresponding path program 1 times [2021-12-14 18:08:54,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:54,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789882872] [2021-12-14 18:08:54,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:54,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:08:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:08:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:08:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:08:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:54,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:08:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:08:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 18:08:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:08:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 18:08:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,102 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-12-14 18:08:55,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:55,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789882872] [2021-12-14 18:08:55,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789882872] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:55,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:08:55,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:08:55,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795573262] [2021-12-14 18:08:55,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:55,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:08:55,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:55,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:08:55,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:08:55,105 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) [2021-12-14 18:08:55,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:55,459 INFO L93 Difference]: Finished difference Result 1730 states and 2467 transitions. [2021-12-14 18:08:55,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 18:08:55,460 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 [2021-12-14 18:08:55,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:55,464 INFO L225 Difference]: With dead ends: 1730 [2021-12-14 18:08:55,465 INFO L226 Difference]: Without dead ends: 882 [2021-12-14 18:08:55,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-12-14 18:08:55,468 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, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 18:08:55,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1090 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 18:08:55,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-12-14 18:08:55,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 877. [2021-12-14 18:08:55,505 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) [2021-12-14 18:08:55,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1243 transitions. [2021-12-14 18:08:55,510 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1243 transitions. Word has length 159 [2021-12-14 18:08:55,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:55,511 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1243 transitions. [2021-12-14 18:08:55,511 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) [2021-12-14 18:08:55,511 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1243 transitions. [2021-12-14 18:08:55,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-14 18:08:55,513 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:55,514 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] [2021-12-14 18:08:55,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 18:08:55,514 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:55,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:55,515 INFO L85 PathProgramCache]: Analyzing trace with hash 296332059, now seen corresponding path program 1 times [2021-12-14 18:08:55,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:55,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46464364] [2021-12-14 18:08:55,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:55,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:08:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:08:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:08:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:08:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:08:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:08:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 18:08:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:08:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 18:08:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-12-14 18:08:55,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:55,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46464364] [2021-12-14 18:08:55,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46464364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:55,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:08:55,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-14 18:08:55,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526709172] [2021-12-14 18:08:55,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:55,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-14 18:08:55,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:55,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-14 18:08:55,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:08:55,956 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) [2021-12-14 18:08:56,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:56,279 INFO L93 Difference]: Finished difference Result 2355 states and 3452 transitions. [2021-12-14 18:08:56,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 18:08:56,280 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 [2021-12-14 18:08:56,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:56,290 INFO L225 Difference]: With dead ends: 2355 [2021-12-14 18:08:56,291 INFO L226 Difference]: Without dead ends: 1510 [2021-12-14 18:08:56,293 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 [2021-12-14 18:08:56,295 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 [2021-12-14 18:08:56,296 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] [2021-12-14 18:08:56,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2021-12-14 18:08:56,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 879. [2021-12-14 18:08:56,343 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) [2021-12-14 18:08:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1243 transitions. [2021-12-14 18:08:56,348 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1243 transitions. Word has length 164 [2021-12-14 18:08:56,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:56,348 INFO L470 AbstractCegarLoop]: Abstraction has 879 states and 1243 transitions. [2021-12-14 18:08:56,348 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) [2021-12-14 18:08:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1243 transitions. [2021-12-14 18:08:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-14 18:08:56,351 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:56,351 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] [2021-12-14 18:08:56,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 18:08:56,352 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:56,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:56,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1563381600, now seen corresponding path program 1 times [2021-12-14 18:08:56,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:56,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943069384] [2021-12-14 18:08:56,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:56,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:08:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:08:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:08:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:08:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:08:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:08:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 18:08:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:08:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 18:08:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 18:08:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:56,742 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-12-14 18:08:56,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:56,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943069384] [2021-12-14 18:08:56,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943069384] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:56,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:08:56,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 18:08:56,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089512085] [2021-12-14 18:08:56,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:56,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 18:08:56,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:56,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 18:08:56,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:08:56,745 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) [2021-12-14 18:08:57,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:57,009 INFO L93 Difference]: Finished difference Result 1190 states and 1736 transitions. [2021-12-14 18:08:57,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 18:08:57,010 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 [2021-12-14 18:08:57,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:57,011 INFO L225 Difference]: With dead ends: 1190 [2021-12-14 18:08:57,011 INFO L226 Difference]: Without dead ends: 0 [2021-12-14 18:08:57,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-14 18:08:57,013 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 437 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2021-12-14 18:08:57,014 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] [2021-12-14 18:08:57,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-14 18:08:57,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-14 18:08:57,015 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) [2021-12-14 18:08:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-14 18:08:57,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2021-12-14 18:08:57,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:57,015 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 18:08:57,016 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) [2021-12-14 18:08:57,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-14 18:08:57,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-14 18:08:57,018 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-14 18:08:57,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 18:08:57,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-14 18:08:59,070 INFO L861 garLoopResultBuilder]: At program point usbnet_disconnectENTRY(lines 7015 7017) the Hoare annotation is: true [2021-12-14 18:08:59,070 INFO L858 garLoopResultBuilder]: For program point usbnet_disconnectFINAL(lines 7015 7017) no Hoare annotation was computed. [2021-12-14 18:08:59,070 INFO L858 garLoopResultBuilder]: For program point usbnet_disconnectEXIT(lines 7015 7017) no Hoare annotation was computed. [2021-12-14 18:08:59,070 INFO L858 garLoopResultBuilder]: For program point ldv_mutex_lock_udevFINAL(lines 6853 6863) no Hoare annotation was computed. [2021-12-14 18:08:59,070 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)) [2021-12-14 18:08:59,070 INFO L858 garLoopResultBuilder]: For program point L6856-1(lines 6856 6859) no Hoare annotation was computed. [2021-12-14 18:08:59,070 INFO L858 garLoopResultBuilder]: For program point L6856(lines 6856 6859) no Hoare annotation was computed. [2021-12-14 18:08:59,071 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))) [2021-12-14 18:08:59,071 INFO L858 garLoopResultBuilder]: For program point ldv_mutex_lock_udevEXIT(lines 6853 6863) no Hoare annotation was computed. [2021-12-14 18:08:59,071 INFO L858 garLoopResultBuilder]: For program point L5762-1(line 5762) no Hoare annotation was computed. [2021-12-14 18:08:59,071 INFO L858 garLoopResultBuilder]: For program point ldv_init_zallocFINAL(lines 5757 5767) no Hoare annotation was computed. [2021-12-14 18:08:59,071 INFO L858 garLoopResultBuilder]: For program point ldv_init_zallocEXIT(lines 5757 5767) no Hoare annotation was computed. [2021-12-14 18:08:59,071 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))))) [2021-12-14 18:08:59,071 INFO L858 garLoopResultBuilder]: For program point L5764-1(line 5764) no Hoare annotation was computed. [2021-12-14 18:08:59,071 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))))) [2021-12-14 18:08:59,071 INFO L861 garLoopResultBuilder]: At program point L5764(line 5764) the Hoare annotation is: true [2021-12-14 18:08:59,071 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 5720 5722) the Hoare annotation is: true [2021-12-14 18:08:59,071 INFO L858 garLoopResultBuilder]: For program point L5721-2(lines 5720 5722) no Hoare annotation was computed. [2021-12-14 18:08:59,071 INFO L858 garLoopResultBuilder]: For program point L5721(line 5721) no Hoare annotation was computed. [2021-12-14 18:08:59,072 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5720 5722) no Hoare annotation was computed. [2021-12-14 18:08:59,072 INFO L861 garLoopResultBuilder]: At program point ldv_undef_intENTRY(lines 5776 5783) the Hoare annotation is: true [2021-12-14 18:08:59,072 INFO L858 garLoopResultBuilder]: For program point ldv_undef_intFINAL(lines 5776 5783) no Hoare annotation was computed. [2021-12-14 18:08:59,072 INFO L858 garLoopResultBuilder]: For program point ldv_undef_intEXIT(lines 5776 5783) no Hoare annotation was computed. [2021-12-14 18:08:59,072 INFO L858 garLoopResultBuilder]: For program point ldv_errorFINAL(lines 6329 6335) no Hoare annotation was computed. [2021-12-14 18:08:59,072 INFO L861 garLoopResultBuilder]: At program point ldv_errorENTRY(lines 6329 6335) the Hoare annotation is: true [2021-12-14 18:08:59,072 INFO L858 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-12-14 18:08:59,072 INFO L858 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 6329 6335) no Hoare annotation was computed. [2021-12-14 18:08:59,072 INFO L858 garLoopResultBuilder]: For program point ldv_stopEXIT(lines 5792 5798) no Hoare annotation was computed. [2021-12-14 18:08:59,072 INFO L861 garLoopResultBuilder]: At program point ldv_stopENTRY(lines 5792 5798) the Hoare annotation is: true [2021-12-14 18:08:59,072 INFO L858 garLoopResultBuilder]: For program point L6047(lines 6047 6062) no Hoare annotation was computed. [2021-12-14 18:08:59,073 INFO L858 garLoopResultBuilder]: For program point L6080-2(lines 6067 6122) no Hoare annotation was computed. [2021-12-14 18:08:59,073 INFO L858 garLoopResultBuilder]: For program point L6113(lines 6113 6116) no Hoare annotation was computed. [2021-12-14 18:08:59,073 INFO L858 garLoopResultBuilder]: For program point L6080(lines 6080 6085) no Hoare annotation was computed. [2021-12-14 18:08:59,073 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)) [2021-12-14 18:08:59,073 INFO L858 garLoopResultBuilder]: For program point L6213(line 6213) no Hoare annotation was computed. [2021-12-14 18:08:59,073 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)) [2021-12-14 18:08:59,073 INFO L858 garLoopResultBuilder]: For program point L6081-1(line 6081) no Hoare annotation was computed. [2021-12-14 18:08:59,073 INFO L858 garLoopResultBuilder]: For program point L6973(lines 6964 6982) no Hoare annotation was computed. [2021-12-14 18:08:59,073 INFO L861 garLoopResultBuilder]: At program point L6214(line 6214) the Hoare annotation is: true [2021-12-14 18:08:59,073 INFO L854 garLoopResultBuilder]: At program point L6974(line 6974) the Hoare annotation is: false [2021-12-14 18:08:59,073 INFO L858 garLoopResultBuilder]: For program point L6049(lines 6049 6059) no Hoare annotation was computed. [2021-12-14 18:08:59,073 INFO L858 garLoopResultBuilder]: For program point L6050(line 6050) no Hoare annotation was computed. [2021-12-14 18:08:59,073 INFO L858 garLoopResultBuilder]: For program point L5852(lines 5852 5855) no Hoare annotation was computed. [2021-12-14 18:08:59,074 INFO L858 garLoopResultBuilder]: For program point L6051(lines 6051 6055) no Hoare annotation was computed. [2021-12-14 18:08:59,074 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)) [2021-12-14 18:08:59,074 INFO L858 garLoopResultBuilder]: For program point L6184(line 6184) no Hoare annotation was computed. [2021-12-14 18:08:59,074 INFO L858 garLoopResultBuilder]: For program point L6052-1(line 6052) no Hoare annotation was computed. [2021-12-14 18:08:59,074 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)) [2021-12-14 18:08:59,074 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)) [2021-12-14 18:08:59,074 INFO L861 garLoopResultBuilder]: At program point L6977(lines 6962 6983) the Hoare annotation is: true [2021-12-14 18:08:59,074 INFO L858 garLoopResultBuilder]: For program point L6185(lines 6185 6200) no Hoare annotation was computed. [2021-12-14 18:08:59,074 INFO L854 garLoopResultBuilder]: At program point L6978(line 6978) the Hoare annotation is: false [2021-12-14 18:08:59,074 INFO L858 garLoopResultBuilder]: For program point L6945-1(line 6945) no Hoare annotation was computed. [2021-12-14 18:08:59,074 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)) [2021-12-14 18:08:59,074 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)) [2021-12-14 18:08:59,074 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)) [2021-12-14 18:08:59,075 INFO L858 garLoopResultBuilder]: For program point L6087-1(line 6087) no Hoare annotation was computed. [2021-12-14 18:08:59,075 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)) [2021-12-14 18:08:59,075 INFO L858 garLoopResultBuilder]: For program point L6120(line 6120) no Hoare annotation was computed. [2021-12-14 18:08:59,075 INFO L858 garLoopResultBuilder]: For program point L6946(lines 6946 6952) no Hoare annotation was computed. [2021-12-14 18:08:59,075 INFO L858 garLoopResultBuilder]: For program point L6187(lines 6187 6197) no Hoare annotation was computed. [2021-12-14 18:08:59,075 INFO L858 garLoopResultBuilder]: For program point L6220(line 6220) no Hoare annotation was computed. [2021-12-14 18:08:59,075 INFO L861 garLoopResultBuilder]: At program point L6121(line 6121) the Hoare annotation is: true [2021-12-14 18:08:59,075 INFO L858 garLoopResultBuilder]: For program point L6947-1(line 6947) no Hoare annotation was computed. [2021-12-14 18:08:59,075 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)) [2021-12-14 18:08:59,075 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)) [2021-12-14 18:08:59,075 INFO L861 garLoopResultBuilder]: At program point L6221(line 6221) the Hoare annotation is: true [2021-12-14 18:08:59,075 INFO L858 garLoopResultBuilder]: For program point L6188(line 6188) no Hoare annotation was computed. [2021-12-14 18:08:59,075 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)) [2021-12-14 18:08:59,076 INFO L858 garLoopResultBuilder]: For program point L6189(lines 6189 6193) no Hoare annotation was computed. [2021-12-14 18:08:59,076 INFO L858 garLoopResultBuilder]: For program point L6057(line 6057) no Hoare annotation was computed. [2021-12-14 18:08:59,076 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)) [2021-12-14 18:08:59,076 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)) [2021-12-14 18:08:59,076 INFO L861 garLoopResultBuilder]: At program point L6058(line 6058) the Hoare annotation is: true [2021-12-14 18:08:59,076 INFO L858 garLoopResultBuilder]: For program point L6190-1(line 6190) no Hoare annotation was computed. [2021-12-14 18:08:59,076 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)) [2021-12-14 18:08:59,076 INFO L858 garLoopResultBuilder]: For program point L6917-1(lines 6917 6920) no Hoare annotation was computed. [2021-12-14 18:08:59,076 INFO L858 garLoopResultBuilder]: For program point L6950-1(line 6950) no Hoare annotation was computed. [2021-12-14 18:08:59,076 INFO L858 garLoopResultBuilder]: For program point L6917(lines 6917 6920) no Hoare annotation was computed. [2021-12-14 18:08:59,076 INFO L854 garLoopResultBuilder]: At program point L6918(line 6918) the Hoare annotation is: false [2021-12-14 18:08:59,076 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)))) [2021-12-14 18:08:59,076 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)) [2021-12-14 18:08:59,077 INFO L858 garLoopResultBuilder]: For program point L6159(line 6159) no Hoare annotation was computed. [2021-12-14 18:08:59,077 INFO L858 garLoopResultBuilder]: For program point L6027(lines 6027 6222) no Hoare annotation was computed. [2021-12-14 18:08:59,077 INFO L858 garLoopResultBuilder]: For program point L6093(line 6093) no Hoare annotation was computed. [2021-12-14 18:08:59,077 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)) [2021-12-14 18:08:59,077 INFO L858 garLoopResultBuilder]: For program point L6127(line 6127) no Hoare annotation was computed. [2021-12-14 18:08:59,077 INFO L858 garLoopResultBuilder]: For program point L6094(lines 6094 6098) no Hoare annotation was computed. [2021-12-14 18:08:59,077 INFO L861 garLoopResultBuilder]: At program point L6160(line 6160) the Hoare annotation is: true [2021-12-14 18:08:59,077 INFO L858 garLoopResultBuilder]: For program point L6028(line 6028) no Hoare annotation was computed. [2021-12-14 18:08:59,077 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)) [2021-12-14 18:08:59,077 INFO L861 garLoopResultBuilder]: At program point L6227(lines 5979 6229) the Hoare annotation is: true [2021-12-14 18:08:59,077 INFO L858 garLoopResultBuilder]: For program point L6128(lines 6128 6164) no Hoare annotation was computed. [2021-12-14 18:08:59,077 INFO L858 garLoopResultBuilder]: For program point L6029(lines 6029 6044) no Hoare annotation was computed. [2021-12-14 18:08:59,078 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)) [2021-12-14 18:08:59,078 INFO L858 garLoopResultBuilder]: For program point L6195(line 6195) no Hoare annotation was computed. [2021-12-14 18:08:59,078 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)) [2021-12-14 18:08:59,078 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)) [2021-12-14 18:08:59,078 INFO L858 garLoopResultBuilder]: For program point L6130(lines 6130 6161) no Hoare annotation was computed. [2021-12-14 18:08:59,078 INFO L861 garLoopResultBuilder]: At program point L6196(line 6196) the Hoare annotation is: true [2021-12-14 18:08:59,078 INFO L858 garLoopResultBuilder]: For program point L6031(lines 6031 6041) no Hoare annotation was computed. [2021-12-14 18:08:59,078 INFO L858 garLoopResultBuilder]: For program point L6064(line 6064) no Hoare annotation was computed. [2021-12-14 18:08:59,078 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-14 18:08:59,078 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)))) [2021-12-14 18:08:59,078 INFO L858 garLoopResultBuilder]: For program point L6131(line 6131) no Hoare annotation was computed. [2021-12-14 18:08:59,078 INFO L858 garLoopResultBuilder]: For program point L6065(lines 6065 6125) no Hoare annotation was computed. [2021-12-14 18:08:59,078 INFO L858 garLoopResultBuilder]: For program point L6032(line 6032) no Hoare annotation was computed. [2021-12-14 18:08:59,079 INFO L858 garLoopResultBuilder]: For program point L6132(lines 6132 6137) no Hoare annotation was computed. [2021-12-14 18:08:59,079 INFO L858 garLoopResultBuilder]: For program point L6033(lines 6033 6037) no Hoare annotation was computed. [2021-12-14 18:08:59,079 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)) [2021-12-14 18:08:59,079 INFO L858 garLoopResultBuilder]: For program point L6166(line 6166) no Hoare annotation was computed. [2021-12-14 18:08:59,079 INFO L858 garLoopResultBuilder]: For program point L6067(lines 6067 6122) no Hoare annotation was computed. [2021-12-14 18:08:59,079 INFO L858 garLoopResultBuilder]: For program point L6100(line 6100) no Hoare annotation was computed. [2021-12-14 18:08:59,079 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)) [2021-12-14 18:08:59,079 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)) [2021-12-14 18:08:59,079 INFO L858 garLoopResultBuilder]: For program point L6167(lines 6167 6182) no Hoare annotation was computed. [2021-12-14 18:08:59,079 INFO L858 garLoopResultBuilder]: For program point L6101(lines 6101 6108) no Hoare annotation was computed. [2021-12-14 18:08:59,079 INFO L858 garLoopResultBuilder]: For program point L6068(line 6068) no Hoare annotation was computed. [2021-12-14 18:08:59,079 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)) [2021-12-14 18:08:59,079 INFO L858 garLoopResultBuilder]: For program point L6003-1(line 6003) no Hoare annotation was computed. [2021-12-14 18:08:59,080 INFO L858 garLoopResultBuilder]: For program point L6069(lines 6069 6077) no Hoare annotation was computed. [2021-12-14 18:08:59,080 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-14 18:08:59,080 INFO L858 garLoopResultBuilder]: For program point L6202(line 6202) no Hoare annotation was computed. [2021-12-14 18:08:59,080 INFO L858 garLoopResultBuilder]: For program point L6103(lines 6103 6106) no Hoare annotation was computed. [2021-12-14 18:08:59,080 INFO L858 garLoopResultBuilder]: For program point L6169(lines 6169 6179) no Hoare annotation was computed. [2021-12-14 18:08:59,080 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)) [2021-12-14 18:08:59,080 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)) [2021-12-14 18:08:59,080 INFO L858 garLoopResultBuilder]: For program point L6203(lines 6203 6218) no Hoare annotation was computed. [2021-12-14 18:08:59,080 INFO L858 garLoopResultBuilder]: For program point L6170(line 6170) no Hoare annotation was computed. [2021-12-14 18:08:59,080 INFO L858 garLoopResultBuilder]: For program point L6071(lines 6071 6075) no Hoare annotation was computed. [2021-12-14 18:08:59,080 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)) [2021-12-14 18:08:59,080 INFO L858 garLoopResultBuilder]: For program point L6005-1(line 6005) no Hoare annotation was computed. [2021-12-14 18:08:59,081 INFO L858 garLoopResultBuilder]: For program point L6171(lines 6171 6175) no Hoare annotation was computed. [2021-12-14 18:08:59,081 INFO L858 garLoopResultBuilder]: For program point L6039(line 6039) no Hoare annotation was computed. [2021-12-14 18:08:59,081 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)) [2021-12-14 18:08:59,081 INFO L858 garLoopResultBuilder]: For program point L6139(line 6139) no Hoare annotation was computed. [2021-12-14 18:08:59,081 INFO L858 garLoopResultBuilder]: For program point L6172-1(line 6172) no Hoare annotation was computed. [2021-12-14 18:08:59,081 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-14 18:08:59,081 INFO L858 garLoopResultBuilder]: For program point L6205(lines 6205 6215) no Hoare annotation was computed. [2021-12-14 18:08:59,081 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)) [2021-12-14 18:08:59,081 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)) [2021-12-14 18:08:59,081 INFO L858 garLoopResultBuilder]: For program point L6007-1(line 6007) no Hoare annotation was computed. [2021-12-14 18:08:59,081 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)) [2021-12-14 18:08:59,081 INFO L861 garLoopResultBuilder]: At program point L6040(line 6040) the Hoare annotation is: true [2021-12-14 18:08:59,081 INFO L858 garLoopResultBuilder]: For program point L5974-1(line 5974) no Hoare annotation was computed. [2021-12-14 18:08:59,082 INFO L858 garLoopResultBuilder]: For program point L6965-1(lines 6964 6982) no Hoare annotation was computed. [2021-12-14 18:08:59,082 INFO L858 garLoopResultBuilder]: For program point L6965(lines 6965 6968) no Hoare annotation was computed. [2021-12-14 18:08:59,082 INFO L858 garLoopResultBuilder]: For program point L6206(line 6206) no Hoare annotation was computed. [2021-12-14 18:08:59,082 INFO L858 garLoopResultBuilder]: For program point L6140(lines 6140 6157) no Hoare annotation was computed. [2021-12-14 18:08:59,082 INFO L854 garLoopResultBuilder]: At program point L6966(line 6966) the Hoare annotation is: false [2021-12-14 18:08:59,082 INFO L858 garLoopResultBuilder]: For program point L6207(lines 6207 6211) no Hoare annotation was computed. [2021-12-14 18:08:59,082 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)) [2021-12-14 18:08:59,082 INFO L858 garLoopResultBuilder]: For program point L6009-1(line 6009) no Hoare annotation was computed. [2021-12-14 18:08:59,082 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)) [2021-12-14 18:08:59,082 INFO L858 garLoopResultBuilder]: For program point L6208-1(line 6208) no Hoare annotation was computed. [2021-12-14 18:08:59,082 INFO L858 garLoopResultBuilder]: For program point L6142(lines 6142 6150) no Hoare annotation was computed. [2021-12-14 18:08:59,082 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)) [2021-12-14 18:08:59,082 INFO L858 garLoopResultBuilder]: For program point L6142-2(lines 6140 6156) no Hoare annotation was computed. [2021-12-14 18:08:59,083 INFO L858 garLoopResultBuilder]: For program point L6110(line 6110) no Hoare annotation was computed. [2021-12-14 18:08:59,083 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-14 18:08:59,083 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)) [2021-12-14 18:08:59,083 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)) [2021-12-14 18:08:59,085 INFO L858 garLoopResultBuilder]: For program point L6011-1(line 6011) no Hoare annotation was computed. [2021-12-14 18:08:59,085 INFO L858 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-12-14 18:08:59,086 INFO L858 garLoopResultBuilder]: For program point L6969(lines 6964 6982) no Hoare annotation was computed. [2021-12-14 18:08:59,086 INFO L858 garLoopResultBuilder]: For program point L6111(lines 6111 6118) no Hoare annotation was computed. [2021-12-14 18:08:59,086 INFO L858 garLoopResultBuilder]: For program point L6177(line 6177) no Hoare annotation was computed. [2021-12-14 18:08:59,086 INFO L854 garLoopResultBuilder]: At program point L6970(line 6970) the Hoare annotation is: false [2021-12-14 18:08:59,086 INFO L861 garLoopResultBuilder]: At program point L6178(line 6178) the Hoare annotation is: true [2021-12-14 18:08:59,086 INFO L858 garLoopResultBuilder]: For program point L6079(line 6079) no Hoare annotation was computed. [2021-12-14 18:08:59,086 INFO L858 garLoopResultBuilder]: For program point L6046(line 6046) no Hoare annotation was computed. [2021-12-14 18:08:59,087 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)) [2021-12-14 18:08:59,087 INFO L858 garLoopResultBuilder]: For program point L6013-1(line 6013) no Hoare annotation was computed. [2021-12-14 18:08:59,087 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))))) [2021-12-14 18:08:59,087 INFO L858 garLoopResultBuilder]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed. [2021-12-14 18:08:59,087 INFO L858 garLoopResultBuilder]: For program point #Ultimate.meminitFINAL(line -1) no Hoare annotation was computed. [2021-12-14 18:08:59,087 INFO L861 garLoopResultBuilder]: At program point always_connectedENTRY(lines 5837 5842) the Hoare annotation is: true [2021-12-14 18:08:59,087 INFO L858 garLoopResultBuilder]: For program point always_connectedFINAL(lines 5837 5842) no Hoare annotation was computed. [2021-12-14 18:08:59,088 INFO L858 garLoopResultBuilder]: For program point always_connectedEXIT(lines 5837 5842) no Hoare annotation was computed. [2021-12-14 18:08:59,088 INFO L861 garLoopResultBuilder]: At program point ldv_undef_int_negativeENTRY(lines 6336 6349) the Hoare annotation is: true [2021-12-14 18:08:59,088 INFO L858 garLoopResultBuilder]: For program point L6343-1(lines 6343 6346) no Hoare annotation was computed. [2021-12-14 18:08:59,088 INFO L858 garLoopResultBuilder]: For program point L6343(lines 6343 6346) no Hoare annotation was computed. [2021-12-14 18:08:59,088 INFO L861 garLoopResultBuilder]: At program point L6344(line 6344) the Hoare annotation is: true [2021-12-14 18:08:59,088 INFO L858 garLoopResultBuilder]: For program point ldv_undef_int_negativeFINAL(lines 6336 6349) no Hoare annotation was computed. [2021-12-14 18:08:59,088 INFO L858 garLoopResultBuilder]: For program point L6341-1(line 6341) no Hoare annotation was computed. [2021-12-14 18:08:59,089 INFO L858 garLoopResultBuilder]: For program point ldv_undef_int_negativeEXIT(lines 6336 6349) no Hoare annotation was computed. [2021-12-14 18:08:59,089 INFO L861 garLoopResultBuilder]: At program point L6341(line 6341) the Hoare annotation is: true [2021-12-14 18:08:59,092 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:08:59,093 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 18:08:59,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:08:59 BoogieIcfgContainer [2021-12-14 18:08:59,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 18:08:59,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 18:08:59,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 18:08:59,126 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 18:08:59,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:08:49" (3/4) ... [2021-12-14 18:08:59,129 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-14 18:08:59,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure usbnet_disconnect [2021-12-14 18:08:59,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2021-12-14 18:08:59,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_udev [2021-12-14 18:08:59,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2021-12-14 18:08:59,135 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_init_zalloc [2021-12-14 18:08:59,135 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-14 18:08:59,135 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int [2021-12-14 18:08:59,135 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2021-12-14 18:08:59,135 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure always_connected [2021-12-14 18:08:59,135 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int_negative [2021-12-14 18:08:59,154 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2021-12-14 18:08:59,155 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-12-14 18:08:59,157 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-14 18:08:59,158 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-14 18:08:59,159 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-14 18:08:59,191 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 [2021-12-14 18:08:59,192 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 [2021-12-14 18:08:59,192 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) [2021-12-14 18:08:59,192 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 [2021-12-14 18:08:59,192 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) [2021-12-14 18:08:59,193 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 [2021-12-14 18:08:59,193 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 [2021-12-14 18:08:59,438 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 18:08:59,438 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 18:08:59,438 INFO L158 Benchmark]: Toolchain (without parser) took 13059.63ms. Allocated memory was 96.5MB in the beginning and 383.8MB in the end (delta: 287.3MB). Free memory was 70.6MB in the beginning and 313.4MB in the end (delta: -242.8MB). Peak memory consumption was 258.2MB. Max. memory is 16.1GB. [2021-12-14 18:08:59,439 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory was 77.1MB in the beginning and 77.1MB in the end (delta: 34.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 18:08:59,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1202.49ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 70.4MB in the beginning and 74.9MB in the end (delta: -4.5MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2021-12-14 18:08:59,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.68ms. Allocated memory is still 134.2MB. Free memory was 74.9MB in the beginning and 66.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 18:08:59,440 INFO L158 Benchmark]: Boogie Preprocessor took 114.69ms. Allocated memory is still 134.2MB. Free memory was 66.5MB in the beginning and 58.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 18:08:59,440 INFO L158 Benchmark]: RCFGBuilder took 1313.23ms. Allocated memory was 134.2MB in the beginning and 224.4MB in the end (delta: 90.2MB). Free memory was 58.1MB in the beginning and 161.9MB in the end (delta: -103.8MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2021-12-14 18:08:59,440 INFO L158 Benchmark]: TraceAbstraction took 9974.12ms. Allocated memory was 224.4MB in the beginning and 383.8MB in the end (delta: 159.4MB). Free memory was 161.9MB in the beginning and 249.7MB in the end (delta: -87.7MB). Peak memory consumption was 219.5MB. Max. memory is 16.1GB. [2021-12-14 18:08:59,440 INFO L158 Benchmark]: Witness Printer took 312.27ms. Allocated memory is still 383.8MB. Free memory was 249.7MB in the beginning and 313.4MB in the end (delta: -63.7MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. [2021-12-14 18:08:59,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory was 77.1MB in the beginning and 77.1MB in the end (delta: 34.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1202.49ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 70.4MB in the beginning and 74.9MB in the end (delta: -4.5MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.68ms. Allocated memory is still 134.2MB. Free memory was 74.9MB in the beginning and 66.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.69ms. Allocated memory is still 134.2MB. Free memory was 66.5MB in the beginning and 58.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1313.23ms. Allocated memory was 134.2MB in the beginning and 224.4MB in the end (delta: 90.2MB). Free memory was 58.1MB in the beginning and 161.9MB in the end (delta: -103.8MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9974.12ms. Allocated memory was 224.4MB in the beginning and 383.8MB in the end (delta: 159.4MB). Free memory was 161.9MB in the beginning and 249.7MB in the end (delta: -87.7MB). Peak memory consumption was 219.5MB. Max. memory is 16.1GB. * Witness Printer took 312.27ms. Allocated memory is still 383.8MB. Free memory was 249.7MB in the beginning and 313.4MB in the end (delta: -63.7MB). Peak memory consumption was 149.1MB. 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: 9.9s, OverallIterations: 10, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2427 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2348 mSDsluCounter, 10006 SdHoareTripleChecker+Invalid, 1.4s 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, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 505 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s 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, 0.2s HoareSimplificationTime, 70 FomulaSimplificationsInter, 7371 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.6s 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! [2021-12-14 18:08:59,487 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