/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:28:39,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:28:39,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:28:40,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:28:40,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:28:40,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:28:40,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:28:40,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:28:40,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:28:40,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:28:40,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:28:40,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:28:40,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:28:40,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:28:40,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:28:40,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:28:40,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:28:40,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:28:40,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:28:40,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:28:40,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:28:40,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:28:40,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:28:40,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:28:40,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:28:40,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:28:40,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:28:40,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:28:40,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:28:40,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:28:40,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:28:40,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:28:40,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:28:40,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:28:40,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:28:40,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:28:40,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:28:40,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:28:40,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:28:40,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:28:40,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:28:40,158 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:28:40,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:28:40,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:28:40,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:28:40,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:28:40,191 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:28:40,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:28:40,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:28:40,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:28:40,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:28:40,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:28:40,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:28:40,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:28:40,193 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:28:40,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:28:40,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:28:40,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:28:40,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:28:40,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:28:40,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:28:40,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:28:40,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:28:40,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:28:40,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:28:40,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:28:40,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:28:40,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:28:40,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:28:40,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:28:40,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:28:40,676 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:28:40,677 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:28:40,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2020-12-22 13:28:40,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6460514b5/174696f786484a43b95d29edcb883fd7/FLAGde6023da8 [2020-12-22 13:28:42,075 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:28:42,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2020-12-22 13:28:42,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6460514b5/174696f786484a43b95d29edcb883fd7/FLAGde6023da8 [2020-12-22 13:28:42,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6460514b5/174696f786484a43b95d29edcb883fd7 [2020-12-22 13:28:42,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:28:42,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:28:42,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:28:42,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:28:42,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:28:42,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:28:42" (1/1) ... [2020-12-22 13:28:42,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e053380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:42, skipping insertion in model container [2020-12-22 13:28:42,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:28:42" (1/1) ... [2020-12-22 13:28:42,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:28:42,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:28:43,316 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2020-12-22 13:28:43,317 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2020-12-22 13:28:43,984 WARN L226 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2020-12-22 13:28:45,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:28:45,847 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:28:46,038 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2020-12-22 13:28:46,039 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2020-12-22 13:28:46,066 WARN L226 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2020-12-22 13:28:46,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:28:46,991 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:28:46,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46 WrapperNode [2020-12-22 13:28:46,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:28:46,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:28:46,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:28:46,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:28:47,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46" (1/1) ... [2020-12-22 13:28:47,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46" (1/1) ... [2020-12-22 13:28:47,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:28:47,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:28:47,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:28:47,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:28:47,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46" (1/1) ... [2020-12-22 13:28:47,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46" (1/1) ... [2020-12-22 13:28:47,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46" (1/1) ... [2020-12-22 13:28:47,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46" (1/1) ... [2020-12-22 13:28:48,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46" (1/1) ... [2020-12-22 13:28:48,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46" (1/1) ... [2020-12-22 13:28:48,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46" (1/1) ... [2020-12-22 13:28:48,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:28:48,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:28:48,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:28:48,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:28:48,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:28:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:28:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:28:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2020-12-22 13:28:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2020-12-22 13:28:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2020-12-22 13:28:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2020-12-22 13:28:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2020-12-22 13:28:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:28:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-22 13:28:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2020-12-22 13:28:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2020-12-22 13:28:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:28:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2020-12-22 13:28:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2020-12-22 13:28:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2020-12-22 13:28:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:28:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:28:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:28:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2020-12-22 13:28:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2020-12-22 13:28:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:28:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:28:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:28:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:28:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:28:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 13:28:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:28:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:28:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2020-12-22 13:28:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2020-12-22 13:28:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 13:28:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 13:28:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:28:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2020-12-22 13:28:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2020-12-22 13:28:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:28:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:29:01,791 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 13:29:05,566 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume !(0 != (lec_addr_delete_~____ptr___0~4.base + lec_addr_delete_~____ptr___0~4.offset) % 18446744073709551616);lec_addr_delete_~tmp___2~14.base, lec_addr_delete_~tmp___2~14.offset := 0, 0;lec_addr_delete_~entry~10.base, lec_addr_delete_~entry~10.offset := lec_addr_delete_~tmp___2~14.base, lec_addr_delete_~tmp___2~14.offset; [2020-12-22 13:29:05,567 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume 0 != (lec_addr_delete_~____ptr___0~4.base + lec_addr_delete_~____ptr___0~4.offset) % 18446744073709551616;lec_addr_delete_~__mptr___0~5.base, lec_addr_delete_~__mptr___0~5.offset := lec_addr_delete_~____ptr___0~4.base, lec_addr_delete_~____ptr___0~4.offset;lec_addr_delete_~tmp___2~14.base, lec_addr_delete_~tmp___2~14.offset := lec_addr_delete_~__mptr___0~5.base, lec_addr_delete_~__mptr___0~5.offset; [2020-12-22 13:29:41,958 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:29:41,959 INFO L299 CfgBuilder]: Removed 1924 assume(true) statements. [2020-12-22 13:29:41,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:29:41 BoogieIcfgContainer [2020-12-22 13:29:41,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:29:41,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:29:41,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:29:41,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:29:41,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:28:42" (1/3) ... [2020-12-22 13:29:41,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccbca1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:29:41, skipping insertion in model container [2020-12-22 13:29:41,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:28:46" (2/3) ... [2020-12-22 13:29:41,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccbca1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:29:41, skipping insertion in model container [2020-12-22 13:29:41,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:29:41" (3/3) ... [2020-12-22 13:29:41,976 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2020-12-22 13:29:41,984 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:29:41,992 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2020-12-22 13:29:42,013 INFO L253 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2020-12-22 13:29:42,060 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:29:42,060 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:29:42,061 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:29:42,061 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:29:42,061 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:29:42,061 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:29:42,061 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:29:42,061 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:29:42,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states. [2020-12-22 13:29:42,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 13:29:42,144 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:29:42,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:29:42,147 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, lec_arp_updateErr0ASSERT_VIOLATIONERROR_FUNCTION, send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION, lec_atm_sendErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:29:42,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:29:42,155 INFO L82 PathProgramCache]: Analyzing trace with hash 636787877, now seen corresponding path program 1 times [2020-12-22 13:29:42,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:29:42,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234199737] [2020-12-22 13:29:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:29:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:29:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:29:43,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234199737] [2020-12-22 13:29:43,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:29:43,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:29:43,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538131804] [2020-12-22 13:29:43,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:29:43,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:29:43,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:29:43,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:29:43,337 INFO L87 Difference]: Start difference. First operand 2379 states. Second operand 3 states. [2020-12-22 13:29:43,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:29:43,858 INFO L93 Difference]: Finished difference Result 6954 states and 10351 transitions. [2020-12-22 13:29:43,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:29:43,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-12-22 13:29:43,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:29:43,905 INFO L225 Difference]: With dead ends: 6954 [2020-12-22 13:29:43,905 INFO L226 Difference]: Without dead ends: 4533 [2020-12-22 13:29:43,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:29:43,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4533 states. [2020-12-22 13:29:44,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4533 to 4509. [2020-12-22 13:29:44,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4509 states. [2020-12-22 13:29:44,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4509 states to 4509 states and 6613 transitions. [2020-12-22 13:29:44,167 INFO L78 Accepts]: Start accepts. Automaton has 4509 states and 6613 transitions. Word has length 37 [2020-12-22 13:29:44,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:29:44,168 INFO L481 AbstractCegarLoop]: Abstraction has 4509 states and 6613 transitions. [2020-12-22 13:29:44,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:29:44,168 INFO L276 IsEmpty]: Start isEmpty. Operand 4509 states and 6613 transitions. [2020-12-22 13:29:44,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 13:29:44,172 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:29:44,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:29:44,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:29:44,174 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, lec_arp_updateErr0ASSERT_VIOLATIONERROR_FUNCTION, send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION, lec_atm_sendErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:29:44,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:29:44,174 INFO L82 PathProgramCache]: Analyzing trace with hash 400817735, now seen corresponding path program 1 times [2020-12-22 13:29:44,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:29:44,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355422373] [2020-12-22 13:29:44,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:29:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:29:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:29:44,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355422373] [2020-12-22 13:29:44,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:29:44,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:29:44,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243677834] [2020-12-22 13:29:44,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:29:44,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:29:44,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:29:44,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:29:44,899 INFO L87 Difference]: Start difference. First operand 4509 states and 6613 transitions. Second operand 5 states. [2020-12-22 13:29:51,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:29:51,226 INFO L93 Difference]: Finished difference Result 22125 states and 32991 transitions. [2020-12-22 13:29:51,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:29:51,227 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2020-12-22 13:29:51,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:29:51,350 INFO L225 Difference]: With dead ends: 22125 [2020-12-22 13:29:51,350 INFO L226 Difference]: Without dead ends: 17670 [2020-12-22 13:29:51,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:29:51,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17670 states. [2020-12-22 13:29:51,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17670 to 17568. [2020-12-22 13:29:51,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17568 states. [2020-12-22 13:29:52,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17568 states to 17568 states and 26044 transitions. [2020-12-22 13:29:52,036 INFO L78 Accepts]: Start accepts. Automaton has 17568 states and 26044 transitions. Word has length 45 [2020-12-22 13:29:52,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:29:52,037 INFO L481 AbstractCegarLoop]: Abstraction has 17568 states and 26044 transitions. [2020-12-22 13:29:52,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:29:52,038 INFO L276 IsEmpty]: Start isEmpty. Operand 17568 states and 26044 transitions. [2020-12-22 13:29:52,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 13:29:52,043 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:29:52,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:29:52,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:29:52,044 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, lec_arp_updateErr0ASSERT_VIOLATIONERROR_FUNCTION, send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION, lec_atm_sendErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:29:52,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:29:52,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1639119721, now seen corresponding path program 1 times [2020-12-22 13:29:52,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:29:52,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228235336] [2020-12-22 13:29:52,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:29:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:29:52,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:29:52,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228235336] [2020-12-22 13:29:52,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:29:52,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:29:52,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145057772] [2020-12-22 13:29:52,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:29:52,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:29:52,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:29:52,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:29:52,633 INFO L87 Difference]: Start difference. First operand 17568 states and 26044 transitions. Second operand 5 states. [2020-12-22 13:30:00,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:30:00,387 INFO L93 Difference]: Finished difference Result 87126 states and 134130 transitions. [2020-12-22 13:30:00,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:30:00,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-12-22 13:30:00,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:30:01,001 INFO L225 Difference]: With dead ends: 87126 [2020-12-22 13:30:01,001 INFO L226 Difference]: Without dead ends: 69612 [2020-12-22 13:30:01,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:30:01,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69612 states. [2020-12-22 13:30:04,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69612 to 69492. [2020-12-22 13:30:04,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69492 states. [2020-12-22 13:30:04,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69492 states to 69492 states and 105606 transitions. [2020-12-22 13:30:04,839 INFO L78 Accepts]: Start accepts. Automaton has 69492 states and 105606 transitions. Word has length 46 [2020-12-22 13:30:04,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:30:04,840 INFO L481 AbstractCegarLoop]: Abstraction has 69492 states and 105606 transitions. [2020-12-22 13:30:04,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:30:04,840 INFO L276 IsEmpty]: Start isEmpty. Operand 69492 states and 105606 transitions. [2020-12-22 13:30:04,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 13:30:04,842 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:30:04,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:30:04,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:30:04,843 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, lec_arp_updateErr0ASSERT_VIOLATIONERROR_FUNCTION, send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION, lec_atm_sendErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:30:04,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:30:04,844 INFO L82 PathProgramCache]: Analyzing trace with hash -217693832, now seen corresponding path program 1 times [2020-12-22 13:30:04,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:30:04,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641341939] [2020-12-22 13:30:04,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:30:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:30:05,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:30:05,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641341939] [2020-12-22 13:30:05,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:30:05,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:30:05,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111387752] [2020-12-22 13:30:05,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:30:05,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:30:05,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:30:05,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:30:05,551 INFO L87 Difference]: Start difference. First operand 69492 states and 105606 transitions. Second operand 5 states. [2020-12-22 13:30:17,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:30:17,213 INFO L93 Difference]: Finished difference Result 345728 states and 570624 transitions. [2020-12-22 13:30:17,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:30:17,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-12-22 13:30:17,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:30:19,694 INFO L225 Difference]: With dead ends: 345728 [2020-12-22 13:30:19,694 INFO L226 Difference]: Without dead ends: 276290 [2020-12-22 13:30:20,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:30:21,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276290 states. [2020-12-22 13:30:31,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276290 to 276134. [2020-12-22 13:30:31,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276134 states. [2020-12-22 13:30:33,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276134 states to 276134 states and 444494 transitions. [2020-12-22 13:30:33,498 INFO L78 Accepts]: Start accepts. Automaton has 276134 states and 444494 transitions. Word has length 47 [2020-12-22 13:30:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:30:33,499 INFO L481 AbstractCegarLoop]: Abstraction has 276134 states and 444494 transitions. [2020-12-22 13:30:33,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:30:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand 276134 states and 444494 transitions. [2020-12-22 13:30:33,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 13:30:33,502 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:30:33,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:30:33,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 13:30:33,503 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, lec_arp_updateErr0ASSERT_VIOLATIONERROR_FUNCTION, send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION, lec_atm_sendErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:30:33,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:30:33,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1980233144, now seen corresponding path program 1 times [2020-12-22 13:30:33,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:30:33,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359841408] [2020-12-22 13:30:33,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:30:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:30:34,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:30:34,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359841408] [2020-12-22 13:30:34,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:30:34,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:30:34,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828942799] [2020-12-22 13:30:34,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:30:34,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:30:34,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:30:34,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:30:34,333 INFO L87 Difference]: Start difference. First operand 276134 states and 444494 transitions. Second operand 5 states. [2020-12-22 13:31:20,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:31:20,652 INFO L93 Difference]: Finished difference Result 1375022 states and 2620526 transitions. [2020-12-22 13:31:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:31:20,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-12-22 13:31:20,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:31:38,728 INFO L225 Difference]: With dead ends: 1375022 [2020-12-22 13:31:38,729 INFO L226 Difference]: Without dead ends: 1098942