./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--memstick--core--ms_block.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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--memstick--core--ms_block.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 1264b42ba0b5dcb83ee2e2b35dfcd5adbd8a3fb1fa3fff4328b672883ffa55c1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:16:36,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:16:36,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:16:36,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:16:36,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:16:36,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:16:36,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:16:36,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:16:36,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:16:36,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:16:36,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:16:36,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:16:36,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:16:36,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:16:36,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:16:36,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:16:36,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:16:36,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:16:36,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:16:36,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:16:36,258 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:16:36,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:16:36,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:16:36,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:16:36,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:16:36,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:16:36,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:16:36,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:16:36,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:16:36,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:16:36,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:16:36,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:16:36,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:16:36,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:16:36,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:16:36,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:16:36,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:16:36,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:16:36,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:16:36,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:16:36,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:16:36,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:16:36,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 12:16:36,320 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:16:36,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:16:36,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:16:36,321 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:16:36,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:16:36,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:16:36,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:16:36,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:16:36,323 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:16:36,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:16:36,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 12:16:36,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:16:36,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:16:36,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:16:36,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:16:36,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:16:36,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:16:36,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:16:36,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:16:36,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:16:36,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:16:36,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:16:36,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:16:36,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:16:36,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:16:36,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 12:16:36,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 12:16:36,328 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:16:36,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:16:36,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:16:36,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1264b42ba0b5dcb83ee2e2b35dfcd5adbd8a3fb1fa3fff4328b672883ffa55c1 [2022-07-21 12:16:36,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:16:36,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:16:36,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:16:36,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:16:36,701 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:16:36,702 INFO L432 ainManager$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--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-07-21 12:16:36,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e9de66c/1e73436403b14e68926b243d8ce56191/FLAGfd84cbe03 [2022-07-21 12:16:37,456 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:16:37,457 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--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-07-21 12:16:37,498 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e9de66c/1e73436403b14e68926b243d8ce56191/FLAGfd84cbe03 [2022-07-21 12:16:37,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e9de66c/1e73436403b14e68926b243d8ce56191 [2022-07-21 12:16:37,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:16:37,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:16:37,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:16:37,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:16:37,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:16:37,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:16:37" (1/1) ... [2022-07-21 12:16:37,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706ec839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:37, skipping insertion in model container [2022-07-21 12:16:37,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:16:37" (1/1) ... [2022-07-21 12:16:37,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:16:37,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:16:39,778 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--memstick--core--ms_block.ko-entry_point.cil.out.i[237227,237240] [2022-07-21 12:16:40,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:16:40,078 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:16:40,491 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--memstick--core--ms_block.ko-entry_point.cil.out.i[237227,237240] [2022-07-21 12:16:40,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:16:40,556 INFO L208 MainTranslator]: Completed translation [2022-07-21 12:16:40,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40 WrapperNode [2022-07-21 12:16:40,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 12:16:40,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 12:16:40,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 12:16:40,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 12:16:40,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40" (1/1) ... [2022-07-21 12:16:40,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40" (1/1) ... [2022-07-21 12:16:40,793 INFO L137 Inliner]: procedures = 306, calls = 1743, calls flagged for inlining = 109, calls inlined = 100, statements flattened = 3808 [2022-07-21 12:16:40,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 12:16:40,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 12:16:40,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 12:16:40,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 12:16:40,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40" (1/1) ... [2022-07-21 12:16:40,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40" (1/1) ... [2022-07-21 12:16:40,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40" (1/1) ... [2022-07-21 12:16:40,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40" (1/1) ... [2022-07-21 12:16:40,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40" (1/1) ... [2022-07-21 12:16:40,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40" (1/1) ... [2022-07-21 12:16:41,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40" (1/1) ... [2022-07-21 12:16:41,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 12:16:41,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 12:16:41,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 12:16:41,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 12:16:41,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40" (1/1) ... [2022-07-21 12:16:41,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:16:41,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:16:41,098 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) [2022-07-21 12:16:41,106 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 [2022-07-21 12:16:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 12:16:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 12:16:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_memstick_host [2022-07-21 12:16:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_memstick_host [2022-07-21 12:16:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-21 12:16:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-21 12:16:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 12:16:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 12:16:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 12:16:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 12:16:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure msb_stop [2022-07-21 12:16:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_stop [2022-07-21 12:16:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure msb_get_zone_from_pba [2022-07-21 12:16:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_get_zone_from_pba [2022-07-21 12:16:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-21 12:16:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-21 12:16:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 12:16:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 12:16:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2022-07-21 12:16:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2022-07-21 12:16:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-21 12:16:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-21 12:16:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-21 12:16:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-21 12:16:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 12:16:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 12:16:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 12:16:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 12:16:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure msb_switch_to_parallel [2022-07-21 12:16:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_switch_to_parallel [2022-07-21 12:16:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 12:16:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 12:16:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 12:16:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 12:16:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure msb_validate_used_block_bitmap [2022-07-21 12:16:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_validate_used_block_bitmap [2022-07-21 12:16:41,138 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 12:16:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 12:16:41,138 INFO L130 BoogieDeclarations]: Found specification of procedure msb_verify_block [2022-07-21 12:16:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_verify_block [2022-07-21 12:16:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 12:16:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 12:16:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-07-21 12:16:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-07-21 12:16:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_msb_disk_lock [2022-07-21 12:16:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_msb_disk_lock [2022-07-21 12:16:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 12:16:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_write [2022-07-21 12:16:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_write [2022-07-21 12:16:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-21 12:16:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-21 12:16:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-21 12:16:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure memstick_set_drvdata [2022-07-21 12:16:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure memstick_set_drvdata [2022-07-21 12:16:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request [2022-07-21 12:16:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request [2022-07-21 12:16:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 12:16:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-21 12:16:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-21 12:16:41,143 INFO L130 BoogieDeclarations]: Found specification of procedure msb_invalidate_reg_window [2022-07-21 12:16:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_invalidate_reg_window [2022-07-21 12:16:41,143 INFO L130 BoogieDeclarations]: Found specification of procedure msb_io_work [2022-07-21 12:16:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_io_work [2022-07-21 12:16:41,143 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 12:16:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 12:16:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2022-07-21 12:16:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2022-07-21 12:16:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 12:16:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure msb_erase_block [2022-07-21 12:16:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_erase_block [2022-07-21 12:16:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 12:16:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure memstick_get_drvdata [2022-07-21 12:16:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure memstick_get_drvdata [2022-07-21 12:16:41,145 INFO L130 BoogieDeclarations]: Found specification of procedure msb_data_clear [2022-07-21 12:16:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_data_clear [2022-07-21 12:16:41,145 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 12:16:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 12:16:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-21 12:16:41,146 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-21 12:16:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 12:16:41,146 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 12:16:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 12:16:41,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 12:16:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 12:16:41,147 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 12:16:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure msb_read_bad_block_table [2022-07-21 12:16:41,147 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_read_bad_block_table [2022-07-21 12:16:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure msb_update_block [2022-07-21 12:16:41,147 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_update_block [2022-07-21 12:16:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_flush [2022-07-21 12:16:41,148 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_flush [2022-07-21 12:16:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_next [2022-07-21 12:16:41,148 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_next [2022-07-21 12:16:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-21 12:16:41,148 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-21 12:16:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_start [2022-07-21 12:16:41,149 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_start [2022-07-21 12:16:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure msb_run_state_machine [2022-07-21 12:16:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_run_state_machine [2022-07-21 12:16:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure msb_sg_copy [2022-07-21 12:16:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_sg_copy [2022-07-21 12:16:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-07-21 12:16:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-07-21 12:16:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 12:16:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 12:16:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_zero_bit [2022-07-21 12:16:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_zero_bit [2022-07-21 12:16:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_memstick_host [2022-07-21 12:16:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_memstick_host [2022-07-21 12:16:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 12:16:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-21 12:16:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-21 12:16:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure msb_get_zone_from_lba [2022-07-21 12:16:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_get_zone_from_lba [2022-07-21 12:16:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure msb_reset [2022-07-21 12:16:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_reset [2022-07-21 12:16:41,153 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_2 [2022-07-21 12:16:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_2 [2022-07-21 12:16:41,153 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2022-07-21 12:16:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2022-07-21 12:16:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 12:16:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 12:16:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-07-21 12:16:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-07-21 12:16:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure msb_bd_getgeo [2022-07-21 12:16:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_bd_getgeo [2022-07-21 12:16:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 12:16:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure msb_remove [2022-07-21 12:16:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_remove [2022-07-21 12:16:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 12:16:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 12:16:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-07-21 12:16:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-07-21 12:16:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure msb_mark_bad [2022-07-21 12:16:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_mark_bad [2022-07-21 12:16:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 12:16:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 12:16:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 12:16:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2022-07-21 12:16:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2022-07-21 12:16:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 12:16:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 12:16:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 12:16:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure sg_nents [2022-07-21 12:16:41,165 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_nents [2022-07-21 12:16:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 12:16:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure msb_read_page [2022-07-21 12:16:41,165 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_read_page [2022-07-21 12:16:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-07-21 12:16:41,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-07-21 12:16:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_stop [2022-07-21 12:16:41,165 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_stop [2022-07-21 12:16:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure msb_set_overwrite_flag [2022-07-21 12:16:41,166 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_set_overwrite_flag [2022-07-21 12:16:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2022-07-21 12:16:41,166 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2022-07-21 12:16:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-21 12:16:41,166 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-21 12:16:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure msb_disk_release [2022-07-21 12:16:41,166 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_disk_release [2022-07-21 12:16:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure msb_mark_block_used [2022-07-21 12:16:41,166 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_mark_block_used [2022-07-21 12:16:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_discard [2022-07-21 12:16:41,167 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_discard [2022-07-21 12:16:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 12:16:41,167 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 12:16:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure msb_start [2022-07-21 12:16:41,167 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_start [2022-07-21 12:16:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-21 12:16:41,167 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-21 12:16:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-07-21 12:16:41,167 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-07-21 12:16:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-07-21 12:16:41,168 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-07-21 12:16:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure msb_init_card [2022-07-21 12:16:41,168 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_init_card [2022-07-21 12:16:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-07-21 12:16:41,168 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-07-21 12:16:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 12:16:41,169 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 12:16:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 12:16:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_one [2022-07-21 12:16:41,169 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_one [2022-07-21 12:16:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-21 12:16:41,170 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-21 12:16:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_msb_disk_lock [2022-07-21 12:16:41,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_msb_disk_lock [2022-07-21 12:16:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 12:16:41,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 12:16:41,700 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 12:16:41,702 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 12:16:41,855 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 12:16:43,766 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 12:16:43,793 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 12:16:43,794 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 12:16:43,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:16:43 BoogieIcfgContainer [2022-07-21 12:16:43,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 12:16:43,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 12:16:43,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 12:16:43,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 12:16:43,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:16:37" (1/3) ... [2022-07-21 12:16:43,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af03f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:16:43, skipping insertion in model container [2022-07-21 12:16:43,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:16:40" (2/3) ... [2022-07-21 12:16:43,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af03f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:16:43, skipping insertion in model container [2022-07-21 12:16:43,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:16:43" (3/3) ... [2022-07-21 12:16:43,807 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-07-21 12:16:43,821 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 12:16:43,821 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 12:16:43,908 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 12:16:43,915 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@496d651, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@29fd02d1 [2022-07-21 12:16:43,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 12:16:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 1468 states, 1036 states have (on average 1.3793436293436294) internal successors, (1429), 1080 states have internal predecessors, (1429), 343 states have call successors, (343), 88 states have call predecessors, (343), 87 states have return successors, (337), 331 states have call predecessors, (337), 337 states have call successors, (337) [2022-07-21 12:16:43,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 12:16:43,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:16:43,942 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-07-21 12:16:43,942 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:16:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:16:43,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1635477223, now seen corresponding path program 1 times [2022-07-21 12:16:43,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:16:43,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647910609] [2022-07-21 12:16:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:16:43,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:16:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:16:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:16:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:16:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:16:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:16:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:16:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:16:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:44,546 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 12:16:44,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:16:44,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647910609] [2022-07-21 12:16:44,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647910609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:16:44,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:16:44,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 12:16:44,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541425399] [2022-07-21 12:16:44,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:16:44,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:16:44,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:16:44,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:16:44,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:16:44,580 INFO L87 Difference]: Start difference. First operand has 1468 states, 1036 states have (on average 1.3793436293436294) internal successors, (1429), 1080 states have internal predecessors, (1429), 343 states have call successors, (343), 88 states have call predecessors, (343), 87 states have return successors, (337), 331 states have call predecessors, (337), 337 states have call successors, (337) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:16:47,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:16:47,413 INFO L93 Difference]: Finished difference Result 3245 states and 4865 transitions. [2022-07-21 12:16:47,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 12:16:47,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-07-21 12:16:47,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:16:47,441 INFO L225 Difference]: With dead ends: 3245 [2022-07-21 12:16:47,441 INFO L226 Difference]: Without dead ends: 1755 [2022-07-21 12:16:47,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:16:47,457 INFO L413 NwaCegarLoop]: 1971 mSDtfsCounter, 1554 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 1498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 2428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1498 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 12:16:47,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 3074 Invalid, 2428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1498 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 12:16:47,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2022-07-21 12:16:47,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1443. [2022-07-21 12:16:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1019 states have (on average 1.3631010794896958) internal successors, (1389), 1055 states have internal predecessors, (1389), 337 states have call successors, (337), 87 states have call predecessors, (337), 86 states have return successors, (328), 322 states have call predecessors, (328), 328 states have call successors, (328) [2022-07-21 12:16:47,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 2054 transitions. [2022-07-21 12:16:47,587 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 2054 transitions. Word has length 84 [2022-07-21 12:16:47,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:16:47,588 INFO L495 AbstractCegarLoop]: Abstraction has 1443 states and 2054 transitions. [2022-07-21 12:16:47,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:16:47,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 2054 transitions. [2022-07-21 12:16:47,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 12:16:47,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:16:47,592 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-07-21 12:16:47,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 12:16:47,593 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:16:47,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:16:47,593 INFO L85 PathProgramCache]: Analyzing trace with hash 985351915, now seen corresponding path program 1 times [2022-07-21 12:16:47,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:16:47,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584743550] [2022-07-21 12:16:47,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:16:47,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:16:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:16:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:16:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:16:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:16:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:16:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:16:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:16:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:47,872 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 12:16:47,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:16:47,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584743550] [2022-07-21 12:16:47,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584743550] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:16:47,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:16:47,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:16:47,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477138690] [2022-07-21 12:16:47,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:16:47,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:16:47,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:16:47,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:16:47,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:16:47,878 INFO L87 Difference]: Start difference. First operand 1443 states and 2054 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-21 12:16:50,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:16:56,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:16:56,943 INFO L93 Difference]: Finished difference Result 4870 states and 7168 transitions. [2022-07-21 12:16:56,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:16:56,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 84 [2022-07-21 12:16:56,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:16:56,970 INFO L225 Difference]: With dead ends: 4870 [2022-07-21 12:16:56,971 INFO L226 Difference]: Without dead ends: 3447 [2022-07-21 12:16:56,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:16:56,982 INFO L413 NwaCegarLoop]: 2245 mSDtfsCounter, 3727 mSDsluCounter, 4159 mSDsCounter, 0 mSdLazyCounter, 3810 mSolverCounterSat, 2174 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3990 SdHoareTripleChecker+Valid, 6404 SdHoareTripleChecker+Invalid, 5985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2174 IncrementalHoareTripleChecker+Valid, 3810 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:16:56,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3990 Valid, 6404 Invalid, 5985 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2174 Valid, 3810 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-07-21 12:16:56,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2022-07-21 12:16:57,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 2804. [2022-07-21 12:16:57,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2804 states, 1982 states have (on average 1.3647830474268416) internal successors, (2705), 2050 states have internal predecessors, (2705), 650 states have call successors, (650), 171 states have call predecessors, (650), 171 states have return successors, (647), 626 states have call predecessors, (647), 641 states have call successors, (647) [2022-07-21 12:16:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 4002 transitions. [2022-07-21 12:16:57,145 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 4002 transitions. Word has length 84 [2022-07-21 12:16:57,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:16:57,146 INFO L495 AbstractCegarLoop]: Abstraction has 2804 states and 4002 transitions. [2022-07-21 12:16:57,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-21 12:16:57,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 4002 transitions. [2022-07-21 12:16:57,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-21 12:16:57,149 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:16:57,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-07-21 12:16:57,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 12:16:57,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:16:57,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:16:57,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1154429741, now seen corresponding path program 1 times [2022-07-21 12:16:57,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:16:57,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597298053] [2022-07-21 12:16:57,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:16:57,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:16:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:16:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:16:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:16:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:16:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:16:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:16:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:16:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:16:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:16:57,335 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 12:16:57,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:16:57,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597298053] [2022-07-21 12:16:57,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597298053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:16:57,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:16:57,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:16:57,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45399721] [2022-07-21 12:16:57,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:16:57,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:16:57,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:16:57,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:16:57,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:16:57,338 INFO L87 Difference]: Start difference. First operand 2804 states and 4002 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:16:59,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:03,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:17:03,256 INFO L93 Difference]: Finished difference Result 3430 states and 5116 transitions. [2022-07-21 12:17:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 12:17:03,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-07-21 12:17:03,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:17:03,278 INFO L225 Difference]: With dead ends: 3430 [2022-07-21 12:17:03,279 INFO L226 Difference]: Without dead ends: 3427 [2022-07-21 12:17:03,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:17:03,283 INFO L413 NwaCegarLoop]: 1913 mSDtfsCounter, 2910 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 1273 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3127 SdHoareTripleChecker+Valid, 4503 SdHoareTripleChecker+Invalid, 3349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1273 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-07-21 12:17:03,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3127 Valid, 4503 Invalid, 3349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1273 Valid, 2075 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-07-21 12:17:03,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3427 states. [2022-07-21 12:17:03,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3427 to 2807. [2022-07-21 12:17:03,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2807 states, 1985 states have (on average 1.3642317380352644) internal successors, (2708), 2052 states have internal predecessors, (2708), 649 states have call successors, (649), 172 states have call predecessors, (649), 172 states have return successors, (647), 626 states have call predecessors, (647), 641 states have call successors, (647) [2022-07-21 12:17:03,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 4004 transitions. [2022-07-21 12:17:03,393 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 4004 transitions. Word has length 87 [2022-07-21 12:17:03,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:17:03,393 INFO L495 AbstractCegarLoop]: Abstraction has 2807 states and 4004 transitions. [2022-07-21 12:17:03,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:17:03,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 4004 transitions. [2022-07-21 12:17:03,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-21 12:17:03,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:17:03,395 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-07-21 12:17:03,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 12:17:03,396 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:17:03,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:17:03,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1427090163, now seen corresponding path program 1 times [2022-07-21 12:17:03,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:17:03,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343045497] [2022-07-21 12:17:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:17:03,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:17:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:17:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:17:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:17:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:17:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:17:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:03,637 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 12:17:03,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:17:03,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343045497] [2022-07-21 12:17:03,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343045497] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:17:03,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:17:03,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:17:03,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213237737] [2022-07-21 12:17:03,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:17:03,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:17:03,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:17:03,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:17:03,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:17:03,641 INFO L87 Difference]: Start difference. First operand 2807 states and 4004 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:17:06,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:17:06,851 INFO L93 Difference]: Finished difference Result 3429 states and 5114 transitions. [2022-07-21 12:17:06,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 12:17:06,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 88 [2022-07-21 12:17:06,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:17:06,896 INFO L225 Difference]: With dead ends: 3429 [2022-07-21 12:17:06,896 INFO L226 Difference]: Without dead ends: 3426 [2022-07-21 12:17:06,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:17:06,899 INFO L413 NwaCegarLoop]: 1910 mSDtfsCounter, 2909 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 1275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3127 SdHoareTripleChecker+Valid, 3847 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1275 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:17:06,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3127 Valid, 3847 Invalid, 2777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1275 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-21 12:17:06,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3426 states. [2022-07-21 12:17:06,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3426 to 2806. [2022-07-21 12:17:07,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 1985 states have (on average 1.363727959697733) internal successors, (2707), 2051 states have internal predecessors, (2707), 648 states have call successors, (648), 172 states have call predecessors, (648), 172 states have return successors, (647), 626 states have call predecessors, (647), 641 states have call successors, (647) [2022-07-21 12:17:07,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 4002 transitions. [2022-07-21 12:17:07,018 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 4002 transitions. Word has length 88 [2022-07-21 12:17:07,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:17:07,021 INFO L495 AbstractCegarLoop]: Abstraction has 2806 states and 4002 transitions. [2022-07-21 12:17:07,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:17:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 4002 transitions. [2022-07-21 12:17:07,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-21 12:17:07,024 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:17:07,024 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-07-21 12:17:07,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 12:17:07,024 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:17:07,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:17:07,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1289633520, now seen corresponding path program 1 times [2022-07-21 12:17:07,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:17:07,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88014484] [2022-07-21 12:17:07,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:17:07,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:17:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:17:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:17:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:17:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:17:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:17:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 12:17:07,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:17:07,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88014484] [2022-07-21 12:17:07,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88014484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:17:07,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:17:07,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:17:07,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718058099] [2022-07-21 12:17:07,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:17:07,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:17:07,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:17:07,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:17:07,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:17:07,244 INFO L87 Difference]: Start difference. First operand 2806 states and 4002 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:17:12,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:17:12,615 INFO L93 Difference]: Finished difference Result 4912 states and 7227 transitions. [2022-07-21 12:17:12,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:17:12,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2022-07-21 12:17:12,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:17:12,640 INFO L225 Difference]: With dead ends: 4912 [2022-07-21 12:17:12,640 INFO L226 Difference]: Without dead ends: 4908 [2022-07-21 12:17:12,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:17:12,644 INFO L413 NwaCegarLoop]: 2436 mSDtfsCounter, 3205 mSDsluCounter, 3810 mSDsCounter, 0 mSdLazyCounter, 3194 mSolverCounterSat, 1447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3432 SdHoareTripleChecker+Valid, 6246 SdHoareTripleChecker+Invalid, 4641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1447 IncrementalHoareTripleChecker+Valid, 3194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:17:12,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3432 Valid, 6246 Invalid, 4641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1447 Valid, 3194 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-21 12:17:12,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4908 states. [2022-07-21 12:17:12,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4908 to 4064. [2022-07-21 12:17:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4064 states, 2868 states have (on average 1.3539051603905161) internal successors, (3883), 2955 states have internal predecessors, (3883), 919 states have call successors, (919), 275 states have call predecessors, (919), 276 states have return successors, (922), 893 states have call predecessors, (922), 914 states have call successors, (922) [2022-07-21 12:17:12,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 5724 transitions. [2022-07-21 12:17:12,793 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 5724 transitions. Word has length 89 [2022-07-21 12:17:12,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:17:12,793 INFO L495 AbstractCegarLoop]: Abstraction has 4064 states and 5724 transitions. [2022-07-21 12:17:12,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:17:12,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 5724 transitions. [2022-07-21 12:17:12,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-21 12:17:12,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:17:12,795 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-07-21 12:17:12,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 12:17:12,796 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:17:12,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:17:12,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1323449750, now seen corresponding path program 1 times [2022-07-21 12:17:12,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:17:12,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880060492] [2022-07-21 12:17:12,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:17:12,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:17:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:17:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:17:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:17:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:17:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:17:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 12:17:12,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:17:12,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880060492] [2022-07-21 12:17:12,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880060492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:17:12,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:17:12,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:17:12,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287101871] [2022-07-21 12:17:12,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:17:12,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:17:12,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:17:12,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:17:12,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:17:12,989 INFO L87 Difference]: Start difference. First operand 4064 states and 5724 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:17:16,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:17:16,672 INFO L93 Difference]: Finished difference Result 4931 states and 7241 transitions. [2022-07-21 12:17:16,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:17:16,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2022-07-21 12:17:16,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:17:16,700 INFO L225 Difference]: With dead ends: 4931 [2022-07-21 12:17:16,700 INFO L226 Difference]: Without dead ends: 4927 [2022-07-21 12:17:16,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:17:16,708 INFO L413 NwaCegarLoop]: 1899 mSDtfsCounter, 2863 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 1278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3071 SdHoareTripleChecker+Valid, 4517 SdHoareTripleChecker+Invalid, 3381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1278 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:17:16,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3071 Valid, 4517 Invalid, 3381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1278 Valid, 2103 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-21 12:17:16,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4927 states. [2022-07-21 12:17:16,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4927 to 4096. [2022-07-21 12:17:16,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4096 states, 2888 states have (on average 1.350415512465374) internal successors, (3900), 2973 states have internal predecessors, (3900), 925 states have call successors, (925), 281 states have call predecessors, (925), 282 states have return successors, (930), 901 states have call predecessors, (930), 922 states have call successors, (930) [2022-07-21 12:17:16,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4096 states to 4096 states and 5755 transitions. [2022-07-21 12:17:16,893 INFO L78 Accepts]: Start accepts. Automaton has 4096 states and 5755 transitions. Word has length 90 [2022-07-21 12:17:16,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:17:16,894 INFO L495 AbstractCegarLoop]: Abstraction has 4096 states and 5755 transitions. [2022-07-21 12:17:16,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:17:16,895 INFO L276 IsEmpty]: Start isEmpty. Operand 4096 states and 5755 transitions. [2022-07-21 12:17:16,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-21 12:17:16,897 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:17:16,897 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-07-21 12:17:16,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 12:17:16,897 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:17:16,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:17:16,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1923209549, now seen corresponding path program 1 times [2022-07-21 12:17:16,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:17:16,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560080370] [2022-07-21 12:17:16,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:17:16,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:17:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:16,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:17:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:16,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:17:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:17:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:17:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:17:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 12:17:17,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:17:17,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560080370] [2022-07-21 12:17:17,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560080370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:17:17,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:17:17,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:17:17,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049321075] [2022-07-21 12:17:17,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:17:17,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:17:17,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:17:17,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:17:17,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:17:17,071 INFO L87 Difference]: Start difference. First operand 4096 states and 5755 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:17:19,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:17:19,961 INFO L93 Difference]: Finished difference Result 4927 states and 7235 transitions. [2022-07-21 12:17:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 12:17:19,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2022-07-21 12:17:19,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:17:20,000 INFO L225 Difference]: With dead ends: 4927 [2022-07-21 12:17:20,001 INFO L226 Difference]: Without dead ends: 4911 [2022-07-21 12:17:20,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:17:20,022 INFO L413 NwaCegarLoop]: 1892 mSDtfsCounter, 3481 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 1794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3700 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 2744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1794 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:17:20,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3700 Valid, 2965 Invalid, 2744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1794 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-21 12:17:20,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2022-07-21 12:17:20,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 4082. [2022-07-21 12:17:20,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4082 states, 2877 states have (on average 1.3503649635036497) internal successors, (3885), 2960 states have internal predecessors, (3885), 922 states have call successors, (922), 281 states have call predecessors, (922), 282 states have return successors, (928), 900 states have call predecessors, (928), 920 states have call successors, (928) [2022-07-21 12:17:20,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4082 states to 4082 states and 5735 transitions. [2022-07-21 12:17:20,244 INFO L78 Accepts]: Start accepts. Automaton has 4082 states and 5735 transitions. Word has length 91 [2022-07-21 12:17:20,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:17:20,244 INFO L495 AbstractCegarLoop]: Abstraction has 4082 states and 5735 transitions. [2022-07-21 12:17:20,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 12:17:20,245 INFO L276 IsEmpty]: Start isEmpty. Operand 4082 states and 5735 transitions. [2022-07-21 12:17:20,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-21 12:17:20,250 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:17:20,250 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 12:17:20,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 12:17:20,251 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:17:20,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:17:20,251 INFO L85 PathProgramCache]: Analyzing trace with hash 172474476, now seen corresponding path program 1 times [2022-07-21 12:17:20,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:17:20,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273182220] [2022-07-21 12:17:20,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:17:20,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:17:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:17:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:17:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:17:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:17:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:17:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:17:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:17:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 12:17:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 12:17:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:20,590 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-21 12:17:20,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:17:20,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273182220] [2022-07-21 12:17:20,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273182220] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:17:20,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:17:20,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 12:17:20,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578065593] [2022-07-21 12:17:20,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:17:20,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 12:17:20,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:17:20,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 12:17:20,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:17:20,592 INFO L87 Difference]: Start difference. First operand 4082 states and 5735 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 12:17:30,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:32,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:35,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:37,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:40,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:44,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:46,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:48,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:17:48,609 INFO L93 Difference]: Finished difference Result 11440 states and 16539 transitions. [2022-07-21 12:17:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 12:17:48,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 144 [2022-07-21 12:17:48,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:17:48,640 INFO L225 Difference]: With dead ends: 11440 [2022-07-21 12:17:48,640 INFO L226 Difference]: Without dead ends: 7378 [2022-07-21 12:17:48,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-07-21 12:17:48,658 INFO L413 NwaCegarLoop]: 1672 mSDtfsCounter, 6458 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 9752 mSolverCounterSat, 4276 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6773 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 14035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4276 IncrementalHoareTripleChecker+Valid, 9752 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2022-07-21 12:17:48,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6773 Valid, 3003 Invalid, 14035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4276 Valid, 9752 Invalid, 7 Unknown, 0 Unchecked, 27.2s Time] [2022-07-21 12:17:48,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7378 states. [2022-07-21 12:17:48,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7378 to 6120. [2022-07-21 12:17:48,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6120 states, 4318 states have (on average 1.351088466882816) internal successors, (5834), 4441 states have internal predecessors, (5834), 1377 states have call successors, (1377), 423 states have call predecessors, (1377), 424 states have return successors, (1383), 1345 states have call predecessors, (1383), 1375 states have call successors, (1383) [2022-07-21 12:17:48,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6120 states to 6120 states and 8594 transitions. [2022-07-21 12:17:48,908 INFO L78 Accepts]: Start accepts. Automaton has 6120 states and 8594 transitions. Word has length 144 [2022-07-21 12:17:48,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:17:48,909 INFO L495 AbstractCegarLoop]: Abstraction has 6120 states and 8594 transitions. [2022-07-21 12:17:48,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 12:17:48,909 INFO L276 IsEmpty]: Start isEmpty. Operand 6120 states and 8594 transitions. [2022-07-21 12:17:48,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-21 12:17:48,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:17:48,915 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 12:17:48,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 12:17:48,915 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:17:48,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:17:48,915 INFO L85 PathProgramCache]: Analyzing trace with hash 491187115, now seen corresponding path program 1 times [2022-07-21 12:17:48,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:17:48,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427700705] [2022-07-21 12:17:48,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:17:48,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:17:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:17:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:17:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:17:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:17:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:17:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:17:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:17:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 12:17:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 12:17:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:49,171 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-07-21 12:17:49,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:17:49,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427700705] [2022-07-21 12:17:49,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427700705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:17:49,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:17:49,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 12:17:49,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699279883] [2022-07-21 12:17:49,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:17:49,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 12:17:49,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:17:49,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 12:17:49,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 12:17:49,174 INFO L87 Difference]: Start difference. First operand 6120 states and 8594 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 12:17:54,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:57,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:58,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:17:58,567 INFO L93 Difference]: Finished difference Result 13397 states and 19656 transitions. [2022-07-21 12:17:58,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:17:58,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 145 [2022-07-21 12:17:58,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:17:58,592 INFO L225 Difference]: With dead ends: 13397 [2022-07-21 12:17:58,592 INFO L226 Difference]: Without dead ends: 7297 [2022-07-21 12:17:58,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:17:58,621 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 3663 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 3191 mSolverCounterSat, 2633 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3736 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2633 IncrementalHoareTripleChecker+Valid, 3191 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-07-21 12:17:58,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3736 Valid, 2241 Invalid, 5826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2633 Valid, 3191 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-07-21 12:17:58,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7297 states. [2022-07-21 12:17:58,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7297 to 6084. [2022-07-21 12:17:58,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6084 states, 4282 states have (on average 1.2828117702008408) internal successors, (5493), 4405 states have internal predecessors, (5493), 1377 states have call successors, (1377), 423 states have call predecessors, (1377), 424 states have return successors, (1383), 1345 states have call predecessors, (1383), 1375 states have call successors, (1383) [2022-07-21 12:17:58,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 8253 transitions. [2022-07-21 12:17:58,864 INFO L78 Accepts]: Start accepts. Automaton has 6084 states and 8253 transitions. Word has length 145 [2022-07-21 12:17:58,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:17:58,865 INFO L495 AbstractCegarLoop]: Abstraction has 6084 states and 8253 transitions. [2022-07-21 12:17:58,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 12:17:58,865 INFO L276 IsEmpty]: Start isEmpty. Operand 6084 states and 8253 transitions. [2022-07-21 12:17:58,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-21 12:17:58,870 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:17:58,871 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 12:17:58,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 12:17:58,871 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:17:58,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:17:58,871 INFO L85 PathProgramCache]: Analyzing trace with hash 913888941, now seen corresponding path program 1 times [2022-07-21 12:17:58,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:17:58,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981292110] [2022-07-21 12:17:58,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:17:58,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:17:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:58,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:17:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:58,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:58,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:58,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:17:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:58,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:58,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:17:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:17:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:17:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:17:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:17:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 12:17:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 12:17:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:59,088 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-07-21 12:17:59,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:17:59,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981292110] [2022-07-21 12:17:59,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981292110] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:17:59,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:17:59,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 12:17:59,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077472233] [2022-07-21 12:17:59,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:17:59,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 12:17:59,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:17:59,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 12:17:59,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 12:17:59,091 INFO L87 Difference]: Start difference. First operand 6084 states and 8253 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 12:18:05,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:08,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:10,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:11,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:11,861 INFO L93 Difference]: Finished difference Result 7299 states and 10371 transitions. [2022-07-21 12:18:11,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 12:18:11,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 145 [2022-07-21 12:18:11,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:11,884 INFO L225 Difference]: With dead ends: 7299 [2022-07-21 12:18:11,884 INFO L226 Difference]: Without dead ends: 7296 [2022-07-21 12:18:11,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-21 12:18:11,889 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 2141 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 5792 mSolverCounterSat, 1579 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 2863 SdHoareTripleChecker+Invalid, 7374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1579 IncrementalHoareTripleChecker+Valid, 5792 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:18:11,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2383 Valid, 2863 Invalid, 7374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1579 Valid, 5792 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2022-07-21 12:18:11,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7296 states. [2022-07-21 12:18:12,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7296 to 6083. [2022-07-21 12:18:12,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6083 states, 4282 states have (on average 1.2821111630079403) internal successors, (5490), 4404 states have internal predecessors, (5490), 1376 states have call successors, (1376), 423 states have call predecessors, (1376), 424 states have return successors, (1383), 1345 states have call predecessors, (1383), 1375 states have call successors, (1383) [2022-07-21 12:18:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6083 states to 6083 states and 8249 transitions. [2022-07-21 12:18:12,114 INFO L78 Accepts]: Start accepts. Automaton has 6083 states and 8249 transitions. Word has length 145 [2022-07-21 12:18:12,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:12,115 INFO L495 AbstractCegarLoop]: Abstraction has 6083 states and 8249 transitions. [2022-07-21 12:18:12,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 12:18:12,115 INFO L276 IsEmpty]: Start isEmpty. Operand 6083 states and 8249 transitions. [2022-07-21 12:18:12,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-21 12:18:12,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:12,123 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:18:12,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 12:18:12,124 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:12,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:12,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1737838048, now seen corresponding path program 1 times [2022-07-21 12:18:12,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:12,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333373225] [2022-07-21 12:18:12,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:12,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:18:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:18:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:18:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:18:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:18:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 12:18:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 12:18:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 12:18:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 12:18:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 12:18:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 12:18:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 12:18:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 12:18:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 12:18:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 12:18:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:12,335 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-21 12:18:12,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:12,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333373225] [2022-07-21 12:18:12,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333373225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:12,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:18:12,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 12:18:12,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882417383] [2022-07-21 12:18:12,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:12,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 12:18:12,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:12,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 12:18:12,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:18:12,337 INFO L87 Difference]: Start difference. First operand 6083 states and 8249 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 12:18:16,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:22,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:24,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:26,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:29,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:29,146 INFO L93 Difference]: Finished difference Result 16943 states and 23693 transitions. [2022-07-21 12:18:29,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 12:18:29,147 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 162 [2022-07-21 12:18:29,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:29,190 INFO L225 Difference]: With dead ends: 16943 [2022-07-21 12:18:29,190 INFO L226 Difference]: Without dead ends: 10880 [2022-07-21 12:18:29,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-07-21 12:18:29,212 INFO L413 NwaCegarLoop]: 1707 mSDtfsCounter, 7181 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 5362 mSolverCounterSat, 5781 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7420 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 11147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5781 IncrementalHoareTripleChecker+Valid, 5362 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-07-21 12:18:29,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7420 Valid, 2789 Invalid, 11147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5781 Valid, 5362 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2022-07-21 12:18:29,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10880 states. [2022-07-21 12:18:29,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10880 to 8477. [2022-07-21 12:18:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8477 states, 6037 states have (on average 1.2920324664568494) internal successors, (7800), 6200 states have internal predecessors, (7800), 1830 states have call successors, (1830), 607 states have call predecessors, (1830), 609 states have return successors, (1841), 1787 states have call predecessors, (1841), 1829 states have call successors, (1841) [2022-07-21 12:18:29,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8477 states to 8477 states and 11471 transitions. [2022-07-21 12:18:29,654 INFO L78 Accepts]: Start accepts. Automaton has 8477 states and 11471 transitions. Word has length 162 [2022-07-21 12:18:29,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:29,654 INFO L495 AbstractCegarLoop]: Abstraction has 8477 states and 11471 transitions. [2022-07-21 12:18:29,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 12:18:29,654 INFO L276 IsEmpty]: Start isEmpty. Operand 8477 states and 11471 transitions. [2022-07-21 12:18:29,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-21 12:18:29,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:29,669 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:18:29,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 12:18:29,670 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:29,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:29,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1075894051, now seen corresponding path program 1 times [2022-07-21 12:18:29,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:29,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350404664] [2022-07-21 12:18:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:29,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:18:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:18:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:18:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:18:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:18:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:18:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:18:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 12:18:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:18:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 12:18:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-21 12:18:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-21 12:18:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-21 12:18:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 12:18:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 12:18:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 12:18:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 12:18:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-07-21 12:18:29,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:29,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350404664] [2022-07-21 12:18:29,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350404664] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:29,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:18:29,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 12:18:29,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967770943] [2022-07-21 12:18:29,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:29,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 12:18:29,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:29,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 12:18:29,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:18:29,916 INFO L87 Difference]: Start difference. First operand 8477 states and 11471 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 12:18:38,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:40,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:44,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:46,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:46,442 INFO L93 Difference]: Finished difference Result 22688 states and 31645 transitions. [2022-07-21 12:18:46,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 12:18:46,442 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 209 [2022-07-21 12:18:46,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:46,514 INFO L225 Difference]: With dead ends: 22688 [2022-07-21 12:18:46,514 INFO L226 Difference]: Without dead ends: 14241 [2022-07-21 12:18:46,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-07-21 12:18:46,543 INFO L413 NwaCegarLoop]: 2721 mSDtfsCounter, 5420 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 6998 mSolverCounterSat, 5112 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5684 SdHoareTripleChecker+Valid, 3867 SdHoareTripleChecker+Invalid, 12113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5112 IncrementalHoareTripleChecker+Valid, 6998 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:18:46,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5684 Valid, 3867 Invalid, 12113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5112 Valid, 6998 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2022-07-21 12:18:46,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14241 states. [2022-07-21 12:18:47,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14241 to 10949. [2022-07-21 12:18:47,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10949 states, 7859 states have (on average 1.296475378546889) internal successors, (10189), 8063 states have internal predecessors, (10189), 2282 states have call successors, (2282), 804 states have call predecessors, (2282), 807 states have return successors, (2297), 2227 states have call predecessors, (2297), 2281 states have call successors, (2297) [2022-07-21 12:18:47,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10949 states to 10949 states and 14768 transitions. [2022-07-21 12:18:47,218 INFO L78 Accepts]: Start accepts. Automaton has 10949 states and 14768 transitions. Word has length 209 [2022-07-21 12:18:47,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:47,218 INFO L495 AbstractCegarLoop]: Abstraction has 10949 states and 14768 transitions. [2022-07-21 12:18:47,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 12:18:47,219 INFO L276 IsEmpty]: Start isEmpty. Operand 10949 states and 14768 transitions. [2022-07-21 12:18:47,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-21 12:18:47,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:47,244 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:18:47,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 12:18:47,245 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:47,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:47,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2005424117, now seen corresponding path program 1 times [2022-07-21 12:18:47,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:47,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608952517] [2022-07-21 12:18:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:47,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:18:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:18:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:18:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:18:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:18:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:18:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:18:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 12:18:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-21 12:18:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 12:18:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 12:18:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 12:18:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 12:18:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-21 12:18:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 12:18:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 12:18:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 12:18:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 12:18:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:47,696 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-07-21 12:18:47,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:47,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608952517] [2022-07-21 12:18:47,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608952517] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:47,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:18:47,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 12:18:47,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254862337] [2022-07-21 12:18:47,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:47,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 12:18:47,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:47,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 12:18:47,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-21 12:18:47,699 INFO L87 Difference]: Start difference. First operand 10949 states and 14768 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 12:18:59,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:01,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:04,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:19:04,970 INFO L93 Difference]: Finished difference Result 29797 states and 41558 transitions. [2022-07-21 12:19:04,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 12:19:04,971 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 237 [2022-07-21 12:19:04,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:19:05,048 INFO L225 Difference]: With dead ends: 29797 [2022-07-21 12:19:05,049 INFO L226 Difference]: Without dead ends: 18878 [2022-07-21 12:19:05,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-07-21 12:19:05,081 INFO L413 NwaCegarLoop]: 2927 mSDtfsCounter, 4725 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 10691 mSolverCounterSat, 4324 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4957 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 15017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4324 IncrementalHoareTripleChecker+Valid, 10691 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:19:05,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4957 Valid, 4892 Invalid, 15017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4324 Valid, 10691 Invalid, 2 Unknown, 0 Unchecked, 15.6s Time] [2022-07-21 12:19:05,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18878 states. [2022-07-21 12:19:05,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18878 to 10955. [2022-07-21 12:19:05,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10955 states, 7865 states have (on average 1.2962492053401145) internal successors, (10195), 8069 states have internal predecessors, (10195), 2282 states have call successors, (2282), 804 states have call predecessors, (2282), 807 states have return successors, (2297), 2227 states have call predecessors, (2297), 2281 states have call successors, (2297) [2022-07-21 12:19:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10955 states to 10955 states and 14774 transitions. [2022-07-21 12:19:05,890 INFO L78 Accepts]: Start accepts. Automaton has 10955 states and 14774 transitions. Word has length 237 [2022-07-21 12:19:05,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:19:05,891 INFO L495 AbstractCegarLoop]: Abstraction has 10955 states and 14774 transitions. [2022-07-21 12:19:05,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 12:19:05,892 INFO L276 IsEmpty]: Start isEmpty. Operand 10955 states and 14774 transitions. [2022-07-21 12:19:05,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-07-21 12:19:05,921 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:19:05,921 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:19:05,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 12:19:05,922 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:19:05,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:19:05,922 INFO L85 PathProgramCache]: Analyzing trace with hash -433931054, now seen corresponding path program 1 times [2022-07-21 12:19:05,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:19:05,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027086121] [2022-07-21 12:19:05,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:19:05,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:19:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:19:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:19:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:19:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:19:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:19:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:19:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:19:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 12:19:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 12:19:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 12:19:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 12:19:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 12:19:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 12:19:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:19:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 12:19:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 12:19:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 12:19:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 12:19:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-21 12:19:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-21 12:19:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-21 12:19:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-21 12:19:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-21 12:19:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-21 12:19:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-21 12:19:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 12:19:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 12:19:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 12:19:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 12:19:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:06,420 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-21 12:19:06,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:19:06,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027086121] [2022-07-21 12:19:06,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027086121] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 12:19:06,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879670471] [2022-07-21 12:19:06,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:19:06,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 12:19:06,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:19:06,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 12:19:06,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 12:19:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:07,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 2941 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:19:07,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:19:07,186 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-07-21 12:19:07,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:19:07,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879670471] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:19:07,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 12:19:07,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-07-21 12:19:07,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648627933] [2022-07-21 12:19:07,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:19:07,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:19:07,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:19:07,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:19:07,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-07-21 12:19:07,188 INFO L87 Difference]: Start difference. First operand 10955 states and 14774 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-21 12:19:08,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:19:08,083 INFO L93 Difference]: Finished difference Result 24708 states and 33322 transitions. [2022-07-21 12:19:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:19:08,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 316 [2022-07-21 12:19:08,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:19:08,127 INFO L225 Difference]: With dead ends: 24708 [2022-07-21 12:19:08,128 INFO L226 Difference]: Without dead ends: 13783 [2022-07-21 12:19:08,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-07-21 12:19:08,153 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 1860 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 4002 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:19:08,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 4002 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:19:08,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13783 states. [2022-07-21 12:19:08,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13783 to 13783. [2022-07-21 12:19:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13783 states, 9893 states have (on average 1.2980895582735268) internal successors, (12842), 10159 states have internal predecessors, (12842), 2858 states have call successors, (2858), 1027 states have call predecessors, (2858), 1031 states have return successors, (2877), 2790 states have call predecessors, (2877), 2857 states have call successors, (2877) [2022-07-21 12:19:08,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13783 states to 13783 states and 18577 transitions. [2022-07-21 12:19:08,975 INFO L78 Accepts]: Start accepts. Automaton has 13783 states and 18577 transitions. Word has length 316 [2022-07-21 12:19:08,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:19:08,975 INFO L495 AbstractCegarLoop]: Abstraction has 13783 states and 18577 transitions. [2022-07-21 12:19:08,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-21 12:19:08,976 INFO L276 IsEmpty]: Start isEmpty. Operand 13783 states and 18577 transitions. [2022-07-21 12:19:09,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-07-21 12:19:09,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:19:09,085 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:19:09,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 12:19:09,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-21 12:19:09,313 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:19:09,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:19:09,314 INFO L85 PathProgramCache]: Analyzing trace with hash -212847300, now seen corresponding path program 1 times [2022-07-21 12:19:09,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:19:09,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742091472] [2022-07-21 12:19:09,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:19:09,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:19:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:19:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:19:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:19:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:19:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:19:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:19:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:19:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 12:19:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 12:19:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 12:19:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 12:19:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 12:19:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 12:19:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:19:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 12:19:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 12:19:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 12:19:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 12:19:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-21 12:19:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-21 12:19:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 12:19:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 12:19:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:19:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 12:19:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:19:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 12:19:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:19:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-21 12:19:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-21 12:19:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-21 12:19:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-07-21 12:19:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-21 12:19:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-21 12:19:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 12:19:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 12:19:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 12:19:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 12:19:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-07-21 12:19:09,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:19:09,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742091472] [2022-07-21 12:19:09,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742091472] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:19:09,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:19:09,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-21 12:19:09,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634869728] [2022-07-21 12:19:09,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:19:09,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-21 12:19:09,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:19:09,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-21 12:19:09,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-07-21 12:19:09,936 INFO L87 Difference]: Start difference. First operand 13783 states and 18577 transitions. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 5 states have internal predecessors, (176), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2022-07-21 12:19:16,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:29,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:32,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:34,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:36,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:40,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:42,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:48,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:51,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:53,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:55,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:17,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:20:17,898 INFO L93 Difference]: Finished difference Result 81338 states and 122356 transitions. [2022-07-21 12:20:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-07-21 12:20:17,898 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 5 states have internal predecessors, (176), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) Word has length 382 [2022-07-21 12:20:17,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:20:18,271 INFO L225 Difference]: With dead ends: 81338 [2022-07-21 12:20:18,272 INFO L226 Difference]: Without dead ends: 67585 [2022-07-21 12:20:18,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=633, Invalid=2229, Unknown=0, NotChecked=0, Total=2862 [2022-07-21 12:20:18,353 INFO L413 NwaCegarLoop]: 3213 mSDtfsCounter, 14073 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 31174 mSolverCounterSat, 12612 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14247 SdHoareTripleChecker+Valid, 5385 SdHoareTripleChecker+Invalid, 43797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 12612 IncrementalHoareTripleChecker+Valid, 31174 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.9s IncrementalHoareTripleChecker+Time [2022-07-21 12:20:18,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14247 Valid, 5385 Invalid, 43797 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [12612 Valid, 31174 Invalid, 11 Unknown, 0 Unchecked, 60.9s Time] [2022-07-21 12:20:18,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67585 states. [2022-07-21 12:20:21,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67585 to 47260. [2022-07-21 12:20:21,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47260 states, 33807 states have (on average 1.3025408938977134) internal successors, (44035), 34848 states have internal predecessors, (44035), 10281 states have call successors, (10281), 2849 states have call predecessors, (10281), 3171 states have return successors, (12410), 10295 states have call predecessors, (12410), 10280 states have call successors, (12410) [2022-07-21 12:20:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47260 states to 47260 states and 66726 transitions. [2022-07-21 12:20:22,206 INFO L78 Accepts]: Start accepts. Automaton has 47260 states and 66726 transitions. Word has length 382 [2022-07-21 12:20:22,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:20:22,207 INFO L495 AbstractCegarLoop]: Abstraction has 47260 states and 66726 transitions. [2022-07-21 12:20:22,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 5 states have internal predecessors, (176), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2022-07-21 12:20:22,207 INFO L276 IsEmpty]: Start isEmpty. Operand 47260 states and 66726 transitions. [2022-07-21 12:20:22,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-07-21 12:20:22,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:20:22,328 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:20:22,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 12:20:22,328 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:20:22,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:20:22,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1124108198, now seen corresponding path program 1 times [2022-07-21 12:20:22,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:20:22,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053394538] [2022-07-21 12:20:22,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:20:22,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:20:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:20:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:20:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 12:20:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:20:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:20:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:20:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:20:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 12:20:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 12:20:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 12:20:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 12:20:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 12:20:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 12:20:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:20:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 12:20:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 12:20:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 12:20:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 12:20:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-21 12:20:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-21 12:20:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 12:20:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 12:20:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:20:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 12:20:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:20:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 12:20:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 12:20:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 12:20:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-07-21 12:20:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-07-21 12:20:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-21 12:20:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-21 12:20:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-07-21 12:20:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 12:20:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 12:20:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 12:20:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 12:20:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:22,912 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-07-21 12:20:22,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:20:22,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053394538] [2022-07-21 12:20:22,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053394538] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:20:22,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:20:22,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-21 12:20:22,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390290395] [2022-07-21 12:20:22,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:20:22,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-21 12:20:22,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:20:22,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-21 12:20:22,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-07-21 12:20:22,913 INFO L87 Difference]: Start difference. First operand 47260 states and 66726 transitions. Second operand has 16 states, 16 states have (on average 11.0625) internal successors, (177), 5 states have internal predecessors, (177), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47)