./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--message--fusion--mptctl.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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--message--fusion--mptctl.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 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:19:31,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:19:31,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:19:31,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:19:31,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:19:31,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:19:31,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:19:31,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:19:31,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:19:31,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:19:31,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:19:31,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:19:31,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:19:31,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:19:31,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:19:31,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:19:32,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:19:32,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:19:32,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:19:32,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:19:32,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:19:32,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:19:32,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:19:32,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:19:32,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:19:32,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:19:32,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:19:32,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:19:32,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:19:32,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:19:32,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:19:32,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:19:32,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:19:32,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:19:32,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:19:32,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:19:32,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:19:32,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:19:32,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:19:32,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:19:32,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:19:32,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:19:32,069 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:19:32,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:19:32,071 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:19:32,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:19:32,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:19:32,072 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:19:32,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:19:32,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:19:32,074 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:19:32,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:19:32,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:19:32,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:19:32,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:19:32,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:19:32,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:19:32,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:19:32,076 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:19:32,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:19:32,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:19:32,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:19:32,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:19:32,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:19:32,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:19:32,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:19:32,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:19:32,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:19:32,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:19:32,083 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:19:32,083 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:19:32,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:19:32,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 [2021-12-28 04:19:32,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:19:32,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:19:32,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:19:32,385 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:19:32,386 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:19:32,387 INFO L432 ainManager$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--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-12-28 04:19:32,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6677f4a83/9375315cdeae4527bc9436aa8d728e65/FLAG50076b294 [2021-12-28 04:19:33,131 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:19:33,132 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--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-12-28 04:19:33,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6677f4a83/9375315cdeae4527bc9436aa8d728e65/FLAG50076b294 [2021-12-28 04:19:33,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6677f4a83/9375315cdeae4527bc9436aa8d728e65 [2021-12-28 04:19:33,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:19:33,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:19:33,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:19:33,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:19:33,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:19:33,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:19:33" (1/1) ... [2021-12-28 04:19:33,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3504a3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:33, skipping insertion in model container [2021-12-28 04:19:33,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:19:33" (1/1) ... [2021-12-28 04:19:33,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:19:33,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:19:35,372 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--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2021-12-28 04:19:35,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:19:35,630 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:19:36,143 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--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2021-12-28 04:19:36,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:19:36,251 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:19:36,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36 WrapperNode [2021-12-28 04:19:36,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:19:36,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:19:36,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:19:36,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:19:36,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36" (1/1) ... [2021-12-28 04:19:36,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36" (1/1) ... [2021-12-28 04:19:36,492 INFO L137 Inliner]: procedures = 258, calls = 2260, calls flagged for inlining = 96, calls inlined = 93, statements flattened = 5893 [2021-12-28 04:19:36,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:19:36,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:19:36,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:19:36,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:19:36,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36" (1/1) ... [2021-12-28 04:19:36,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36" (1/1) ... [2021-12-28 04:19:36,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36" (1/1) ... [2021-12-28 04:19:36,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36" (1/1) ... [2021-12-28 04:19:36,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36" (1/1) ... [2021-12-28 04:19:36,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36" (1/1) ... [2021-12-28 04:19:36,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36" (1/1) ... [2021-12-28 04:19:36,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:19:36,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:19:36,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:19:36,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:19:36,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36" (1/1) ... [2021-12-28 04:19:36,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:19:36,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:19:36,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 04:19:36,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 04:19:36,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:19:36,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:19:36,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:19:36,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:19:36,857 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2021-12-28 04:19:36,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2021-12-28 04:19:36,857 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-28 04:19:36,858 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-28 04:19:36,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpctl_mutex [2021-12-28 04:19:36,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpctl_mutex [2021-12-28 04:19:36,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:19:36,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:19:36,858 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_GetIocState [2021-12-28 04:19:36,858 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_GetIocState [2021-12-28 04:19:36,860 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-12-28 04:19:36,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-12-28 04:19:36,860 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2021-12-28 04:19:36,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2021-12-28 04:19:36,860 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:19:36,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:19:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:19:36,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:19:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_syscall_down [2021-12-28 04:19:36,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_syscall_down [2021-12-28 04:19:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_device_driver_deregister [2021-12-28 04:19:36,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_device_driver_deregister [2021-12-28 04:19:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:19:36,862 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:19:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_remove [2021-12-28 04:19:36,862 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_remove [2021-12-28 04:19:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:19:36,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:19:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:19:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:19:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame [2021-12-28 04:19:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame [2021-12-28 04:19:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-28 04:19:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-28 04:19:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 04:19:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 04:19:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:19:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:19:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure __mptctl_ioctl [2021-12-28 04:19:36,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __mptctl_ioctl [2021-12-28 04:19:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_mpt_command [2021-12-28 04:19:36,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_mpt_command [2021-12-28 04:19:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_fw_download [2021-12-28 04:19:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_fw_download [2021-12-28 04:19:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:19:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:19:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2021-12-28 04:19:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2021-12-28 04:19:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame_hi_pri [2021-12-28 04:19:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame_hi_pri [2021-12-28 04:19:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 04:19:36,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 04:19:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:19:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:19:36,868 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_fw_memory [2021-12-28 04:19:36,869 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_fw_memory [2021-12-28 04:19:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_taskmgmt [2021-12-28 04:19:36,869 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_taskmgmt [2021-12-28 04:19:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-28 04:19:36,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-28 04:19:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:19:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:19:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_clear_taskmgmt_in_progress_flag [2021-12-28 04:19:36,870 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_clear_taskmgmt_in_progress_flag [2021-12-28 04:19:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_timeout_expired [2021-12-28 04:19:36,870 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_timeout_expired [2021-12-28 04:19:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-28 04:19:36,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-28 04:19:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 04:19:36,871 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 04:19:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 04:19:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 04:19:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpctl_mutex [2021-12-28 04:19:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpctl_mutex [2021-12-28 04:19:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_fasync [2021-12-28 04:19:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_fasync [2021-12-28 04:19:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:19:36,873 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:19:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2021-12-28 04:19:36,873 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2021-12-28 04:19:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:19:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_set_taskmgmt_in_progress_flag [2021-12-28 04:19:36,873 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_set_taskmgmt_in_progress_flag [2021-12-28 04:19:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:19:36,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:19:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_verify_adapter [2021-12-28 04:19:36,874 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_verify_adapter [2021-12-28 04:19:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:19:36,875 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:19:36,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-28 04:19:36,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-28 04:19:36,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:19:36,875 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-28 04:19:36,876 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-28 04:19:36,876 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_deregister [2021-12-28 04:19:36,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_deregister [2021-12-28 04:19:36,877 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_sgl [2021-12-28 04:19:36,877 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_sgl [2021-12-28 04:19:36,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:19:36,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:19:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:19:36,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:19:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:19:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:19:36,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:19:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-28 04:19:36,879 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-28 04:19:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:19:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 04:19:36,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 04:19:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:19:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_get_msg_frame [2021-12-28 04:19:36,880 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_get_msg_frame [2021-12-28 04:19:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-28 04:19:36,881 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-28 04:19:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2021-12-28 04:19:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2021-12-28 04:19:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_send_handshake_request [2021-12-28 04:19:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_send_handshake_request [2021-12-28 04:19:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_register [2021-12-28 04:19:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_register [2021-12-28 04:19:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2021-12-28 04:19:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2021-12-28 04:19:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2021-12-28 04:19:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2021-12-28 04:19:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:19:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-28 04:19:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:19:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:19:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_config [2021-12-28 04:19:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_config [2021-12-28 04:19:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_msg_frame [2021-12-28 04:19:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_msg_frame [2021-12-28 04:19:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 04:19:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 04:19:37,629 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:19:37,633 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:19:39,638 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:19:47,613 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:19:47,627 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:19:47,628 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:19:47,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:19:47 BoogieIcfgContainer [2021-12-28 04:19:47,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:19:47,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:19:47,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:19:47,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:19:47,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:19:33" (1/3) ... [2021-12-28 04:19:47,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7317d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:19:47, skipping insertion in model container [2021-12-28 04:19:47,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:19:36" (2/3) ... [2021-12-28 04:19:47,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7317d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:19:47, skipping insertion in model container [2021-12-28 04:19:47,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:19:47" (3/3) ... [2021-12-28 04:19:47,638 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-12-28 04:19:47,642 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:19:47,642 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:19:47,685 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:19:47,691 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 04:19:47,691 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:19:47,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 1328 states, 997 states have (on average 1.415245737211635) internal successors, (1411), 1017 states have internal predecessors, (1411), 267 states have call successors, (267), 63 states have call predecessors, (267), 62 states have return successors, (263), 262 states have call predecessors, (263), 263 states have call successors, (263) [2021-12-28 04:19:47,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-28 04:19:47,735 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:19:47,735 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:19:47,736 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:19:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:19:47,740 INFO L85 PathProgramCache]: Analyzing trace with hash -811675881, now seen corresponding path program 1 times [2021-12-28 04:19:47,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:19:47,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692551318] [2021-12-28 04:19:47,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:19:47,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:19:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:19:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:19:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:19:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:19:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:19:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 04:19:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:19:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:19:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:19:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:19:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:19:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 04:19:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:19:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 04:19:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:19:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 04:19:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:19:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 04:19:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:19:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:19:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-12-28 04:19:48,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:19:48,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692551318] [2021-12-28 04:19:48,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692551318] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:19:48,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:19:48,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:19:48,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765835180] [2021-12-28 04:19:48,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:19:48,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:19:48,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:19:48,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:19:48,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:19:48,479 INFO L87 Difference]: Start difference. First operand has 1328 states, 997 states have (on average 1.415245737211635) internal successors, (1411), 1017 states have internal predecessors, (1411), 267 states have call successors, (267), 63 states have call predecessors, (267), 62 states have return successors, (263), 262 states have call predecessors, (263), 263 states have call successors, (263) Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 04:19:50,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:19:52,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:19:55,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:19:59,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:01,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:02,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:20:02,367 INFO L93 Difference]: Finished difference Result 2702 states and 4048 transitions. [2021-12-28 04:20:02,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 04:20:02,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 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 119 [2021-12-28 04:20:02,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:20:02,394 INFO L225 Difference]: With dead ends: 2702 [2021-12-28 04:20:02,394 INFO L226 Difference]: Without dead ends: 1366 [2021-12-28 04:20:02,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:20:02,419 INFO L933 BasicCegarLoop]: 1883 mSDtfsCounter, 536 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 648 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 3609 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:20:02,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [542 Valid, 3609 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 1186 Invalid, 4 Unknown, 0 Unchecked, 13.6s Time] [2021-12-28 04:20:02,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2021-12-28 04:20:02,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1315. [2021-12-28 04:20:02,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 990 states have (on average 1.4090909090909092) internal successors, (1395), 1004 states have internal predecessors, (1395), 263 states have call successors, (263), 62 states have call predecessors, (263), 61 states have return successors, (252), 251 states have call predecessors, (252), 252 states have call successors, (252) [2021-12-28 04:20:02,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1910 transitions. [2021-12-28 04:20:02,567 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1910 transitions. Word has length 119 [2021-12-28 04:20:02,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:20:02,567 INFO L470 AbstractCegarLoop]: Abstraction has 1315 states and 1910 transitions. [2021-12-28 04:20:02,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 04:20:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1910 transitions. [2021-12-28 04:20:02,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-28 04:20:02,579 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:20:02,579 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:20:02,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:20:02,580 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:20:02,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:20:02,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1510126037, now seen corresponding path program 1 times [2021-12-28 04:20:02,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:20:02,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258676932] [2021-12-28 04:20:02,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:20:02,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:20:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:20:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:20:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:20:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 04:20:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:20:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:20:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 04:20:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 04:20:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 04:20:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 04:20:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-12-28 04:20:02,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:20:02,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258676932] [2021-12-28 04:20:02,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258676932] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:20:02,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:20:02,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:20:02,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349873633] [2021-12-28 04:20:02,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:20:02,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:20:02,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:20:02,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:20:02,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:20:02,931 INFO L87 Difference]: Start difference. First operand 1315 states and 1910 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-28 04:20:05,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:08,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:10,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:12,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:15,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:17,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:19,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:21,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:25,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:29,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:20:29,824 INFO L93 Difference]: Finished difference Result 2761 states and 4011 transitions. [2021-12-28 04:20:29,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:20:29,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2021-12-28 04:20:29,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:20:29,834 INFO L225 Difference]: With dead ends: 2761 [2021-12-28 04:20:29,834 INFO L226 Difference]: Without dead ends: 1472 [2021-12-28 04:20:29,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:20:29,841 INFO L933 BasicCegarLoop]: 1884 mSDtfsCounter, 712 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 684 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 4943 SdHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2021-12-28 04:20:29,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 4943 Invalid, 2448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 1755 Invalid, 9 Unknown, 0 Unchecked, 26.7s Time] [2021-12-28 04:20:29,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2021-12-28 04:20:29,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1400. [2021-12-28 04:20:29,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1054 states have (on average 1.4013282732447818) internal successors, (1477), 1069 states have internal predecessors, (1477), 273 states have call successors, (273), 73 states have call predecessors, (273), 72 states have return successors, (262), 260 states have call predecessors, (262), 262 states have call successors, (262) [2021-12-28 04:20:29,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 2012 transitions. [2021-12-28 04:20:29,908 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 2012 transitions. Word has length 119 [2021-12-28 04:20:29,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:20:29,913 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 2012 transitions. [2021-12-28 04:20:29,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-28 04:20:29,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 2012 transitions. [2021-12-28 04:20:29,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-28 04:20:29,920 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:20:29,921 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-12-28 04:20:29,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:20:29,921 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:20:29,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:20:29,922 INFO L85 PathProgramCache]: Analyzing trace with hash -623688502, now seen corresponding path program 1 times [2021-12-28 04:20:29,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:20:29,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21602756] [2021-12-28 04:20:29,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:20:29,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:20:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:20:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:20:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:20:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 04:20:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:20:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:20:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 04:20:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 04:20:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 04:20:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 04:20:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:20:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:20:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 04:20:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-28 04:20:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 04:20:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:20:30,301 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-12-28 04:20:30,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:20:30,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21602756] [2021-12-28 04:20:30,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21602756] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:20:30,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:20:30,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:20:30,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815779672] [2021-12-28 04:20:30,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:20:30,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:20:30,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:20:30,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:20:30,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:20:30,304 INFO L87 Difference]: Start difference. First operand 1400 states and 2012 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:20:33,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:20:37,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []