./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.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 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:04:04,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:04:04,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:04:04,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:04:04,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:04:04,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:04:04,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:04:04,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:04:04,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:04:04,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:04:04,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:04:04,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:04:04,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:04:04,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:04:04,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:04:04,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:04:04,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:04:04,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:04:04,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:04:04,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:04:04,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:04:04,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:04:04,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:04:04,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:04:04,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:04:04,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:04:04,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:04:04,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:04:04,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:04:04,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:04:04,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:04:04,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:04:04,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:04:04,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:04:04,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:04:04,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:04:04,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:04:04,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:04:04,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:04:04,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:04:04,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:04:04,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:04:04,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:04:04,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:04:04,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:04:04,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:04:04,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:04:04,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:04:04,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:04:04,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:04:04,650 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:04:04,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:04:04,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:04:04,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:04:04,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:04:04,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:04:04,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:04:04,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:04:04,652 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:04:04,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:04:04,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:04:04,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:04:04,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:04:04,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:04:04,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:04:04,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:04:04,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:04:04,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:04:04,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:04:04,654 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:04:04,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:04:04,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:04:04,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:04:04,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2021-12-16 04:04:04,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:04:04,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:04:04,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:04:04,965 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:04:04,966 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:04:04,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-16 04:04:05,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a90c4dea/15abebc724504c819b6492bd67cf4e28/FLAG6229df4a0 [2021-12-16 04:04:05,802 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:04:05,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-16 04:04:05,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a90c4dea/15abebc724504c819b6492bd67cf4e28/FLAG6229df4a0 [2021-12-16 04:04:06,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a90c4dea/15abebc724504c819b6492bd67cf4e28 [2021-12-16 04:04:06,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:04:06,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:04:06,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:04:06,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:04:06,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:04:06,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:04:06" (1/1) ... [2021-12-16 04:04:06,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f14b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:06, skipping insertion in model container [2021-12-16 04:04:06,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:04:06" (1/1) ... [2021-12-16 04:04:06,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:04:06,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:04:06,641 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-12-16 04:04:06,642 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-12-16 04:04:06,935 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-12-16 04:04:07,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:04:07,898 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:04:08,009 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-12-16 04:04:08,011 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-12-16 04:04:08,043 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-12-16 04:04:08,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:04:08,356 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:04:08,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08 WrapperNode [2021-12-16 04:04:08,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:04:08,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:04:08,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:04:08,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:04:08,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08" (1/1) ... [2021-12-16 04:04:08,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08" (1/1) ... [2021-12-16 04:04:08,630 INFO L137 Inliner]: procedures = 281, calls = 1587, calls flagged for inlining = 160, calls inlined = 157, statements flattened = 4353 [2021-12-16 04:04:08,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:04:08,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:04:08,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:04:08,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:04:08,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08" (1/1) ... [2021-12-16 04:04:08,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08" (1/1) ... [2021-12-16 04:04:08,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08" (1/1) ... [2021-12-16 04:04:08,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08" (1/1) ... [2021-12-16 04:04:08,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08" (1/1) ... [2021-12-16 04:04:08,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08" (1/1) ... [2021-12-16 04:04:08,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08" (1/1) ... [2021-12-16 04:04:08,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:04:08,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:04:08,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:04:08,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:04:08,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08" (1/1) ... [2021-12-16 04:04:08,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:04:08,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:04:08,864 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) [2021-12-16 04:04:08,893 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 [2021-12-16 04:04:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2021-12-16 04:04:08,907 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2021-12-16 04:04:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-16 04:04:08,907 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-16 04:04:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-16 04:04:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-16 04:04:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:04:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:04:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-16 04:04:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-16 04:04:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-16 04:04:08,909 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-16 04:04:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-16 04:04:08,909 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-16 04:04:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 04:04:08,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 04:04:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:04:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:04:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2021-12-16 04:04:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2021-12-16 04:04:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:04:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:04:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-16 04:04:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-16 04:04:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-16 04:04:08,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-16 04:04:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 04:04:08,911 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 04:04:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-16 04:04:08,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-16 04:04:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2021-12-16 04:04:08,912 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2021-12-16 04:04:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-16 04:04:08,912 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-16 04:04:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:04:08,912 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:04:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-16 04:04:08,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-16 04:04:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-16 04:04:08,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-16 04:04:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-16 04:04:08,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-16 04:04:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-16 04:04:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-16 04:04:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2021-12-16 04:04:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2021-12-16 04:04:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-16 04:04:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-16 04:04:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-12-16 04:04:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-12-16 04:04:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-16 04:04:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-16 04:04:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:04:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-16 04:04:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-16 04:04:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-16 04:04:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-16 04:04:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:04:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-16 04:04:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-16 04:04:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-16 04:04:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-16 04:04:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-16 04:04:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-16 04:04:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-16 04:04:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-16 04:04:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-16 04:04:08,919 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-16 04:04:08,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-16 04:04:08,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-16 04:04:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-16 04:04:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2021-12-16 04:04:08,920 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2021-12-16 04:04:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2021-12-16 04:04:08,920 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2021-12-16 04:04:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:04:08,920 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:04:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2021-12-16 04:04:08,921 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2021-12-16 04:04:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2021-12-16 04:04:08,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2021-12-16 04:04:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-16 04:04:08,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-16 04:04:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:04:08,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:04:08,922 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-16 04:04:08,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-16 04:04:08,922 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-16 04:04:08,923 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-16 04:04:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-16 04:04:08,923 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-16 04:04:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2021-12-16 04:04:08,924 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2021-12-16 04:04:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-16 04:04:08,924 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-16 04:04:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-16 04:04:08,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-16 04:04:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2021-12-16 04:04:08,925 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2021-12-16 04:04:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-16 04:04:08,925 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-16 04:04:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 04:04:08,925 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 04:04:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-16 04:04:08,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-16 04:04:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2021-12-16 04:04:08,926 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2021-12-16 04:04:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:04:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2021-12-16 04:04:08,927 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2021-12-16 04:04:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-16 04:04:08,927 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-16 04:04:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-16 04:04:08,928 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-16 04:04:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 04:04:08,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 04:04:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-16 04:04:08,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-16 04:04:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-16 04:04:08,932 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-16 04:04:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 04:04:08,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 04:04:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:04:08,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:04:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-16 04:04:08,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-16 04:04:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-16 04:04:08,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-16 04:04:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:04:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-16 04:04:08,938 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-16 04:04:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2021-12-16 04:04:08,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2021-12-16 04:04:08,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:04:08,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:04:08,939 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2021-12-16 04:04:08,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2021-12-16 04:04:08,939 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2021-12-16 04:04:08,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2021-12-16 04:04:08,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:04:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-12-16 04:04:08,940 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-12-16 04:04:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:04:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2021-12-16 04:04:08,940 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2021-12-16 04:04:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:04:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-16 04:04:08,940 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-16 04:04:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-16 04:04:08,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-16 04:04:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-16 04:04:08,941 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-16 04:04:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-16 04:04:08,941 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-16 04:04:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2021-12-16 04:04:08,941 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2021-12-16 04:04:08,942 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-16 04:04:08,942 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-16 04:04:08,942 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2021-12-16 04:04:08,942 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2021-12-16 04:04:08,942 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-16 04:04:08,942 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-16 04:04:08,942 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 04:04:08,942 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 04:04:08,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:04:08,943 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-16 04:04:08,943 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-16 04:04:08,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:04:08,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:04:09,679 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:04:09,682 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:04:09,850 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:04:11,939 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:04:11,965 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:04:11,966 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 04:04:11,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:04:11 BoogieIcfgContainer [2021-12-16 04:04:11,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:04:11,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:04:11,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:04:11,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:04:11,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:04:06" (1/3) ... [2021-12-16 04:04:11,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b5b12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:04:11, skipping insertion in model container [2021-12-16 04:04:11,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:08" (2/3) ... [2021-12-16 04:04:11,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b5b12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:04:11, skipping insertion in model container [2021-12-16 04:04:11,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:04:11" (3/3) ... [2021-12-16 04:04:11,976 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-16 04:04:11,984 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:04:11,984 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:04:12,033 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:04:12,039 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 [2021-12-16 04:04:12,039 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:04:12,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 1685 states, 1169 states have (on average 1.3250641573994868) internal successors, (1549), 1196 states have internal predecessors, (1549), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) [2021-12-16 04:04:12,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-16 04:04:12,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:04:12,104 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-12-16 04:04:12,105 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:04:12,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:04:12,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1357541251, now seen corresponding path program 1 times [2021-12-16 04:04:12,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:04:12,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891275018] [2021-12-16 04:04:12,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:04:12,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:04:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:12,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:04:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:12,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:04:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:12,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:04:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:12,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:04:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:12,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 04:04:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:12,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:04:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:12,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 04:04:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:12,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:04:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:12,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:04:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 04:04:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-16 04:04:12,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:04:12,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891275018] [2021-12-16 04:04:12,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891275018] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:04:12,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:04:12,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:04:12,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201530714] [2021-12-16 04:04:12,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:04:12,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:04:12,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:04:12,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:04:12,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:04:12,826 INFO L87 Difference]: Start difference. First operand has 1685 states, 1169 states have (on average 1.3250641573994868) internal successors, (1549), 1196 states have internal predecessors, (1549), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:04:19,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:04:19,513 INFO L93 Difference]: Finished difference Result 5294 states and 7735 transitions. [2021-12-16 04:04:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 04:04:19,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2021-12-16 04:04:19,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:04:19,565 INFO L225 Difference]: With dead ends: 5294 [2021-12-16 04:04:19,568 INFO L226 Difference]: Without dead ends: 3576 [2021-12-16 04:04:19,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-16 04:04:19,600 INFO L933 BasicCegarLoop]: 2475 mSDtfsCounter, 4378 mSDsluCounter, 6979 mSDsCounter, 0 mSdLazyCounter, 5090 mSolverCounterSat, 2889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4689 SdHoareTripleChecker+Valid, 9454 SdHoareTripleChecker+Invalid, 7979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2889 IncrementalHoareTripleChecker+Valid, 5090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:04:19,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4689 Valid, 9454 Invalid, 7979 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2889 Valid, 5090 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-12-16 04:04:19,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2021-12-16 04:04:19,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3307. [2021-12-16 04:04:19,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 2300 states have (on average 1.3139130434782609) internal successors, (3022), 2340 states have internal predecessors, (3022), 853 states have call successors, (853), 154 states have call predecessors, (853), 153 states have return successors, (852), 840 states have call predecessors, (852), 852 states have call successors, (852) [2021-12-16 04:04:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 4727 transitions. [2021-12-16 04:04:19,880 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 4727 transitions. Word has length 92 [2021-12-16 04:04:19,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:04:19,883 INFO L470 AbstractCegarLoop]: Abstraction has 3307 states and 4727 transitions. [2021-12-16 04:04:19,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:04:19,884 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 4727 transitions. [2021-12-16 04:04:19,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 04:04:19,898 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:04:19,899 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:04:19,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:04:19,899 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:04:19,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:04:19,901 INFO L85 PathProgramCache]: Analyzing trace with hash -454809615, now seen corresponding path program 1 times [2021-12-16 04:04:19,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:04:19,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136675460] [2021-12-16 04:04:19,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:04:19,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:04:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:20,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:04:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:20,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:04:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:20,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:04:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:04:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:20,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 04:04:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:20,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:04:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:20,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 04:04:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:20,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 04:04:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:20,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 04:04:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:20,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 04:04:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-16 04:04:20,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:04:20,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136675460] [2021-12-16 04:04:20,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136675460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:04:20,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:04:20,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:04:20,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380619871] [2021-12-16 04:04:20,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:04:20,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:04:20,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:04:20,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:04:20,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:04:20,222 INFO L87 Difference]: Start difference. First operand 3307 states and 4727 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:04:26,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:04:26,501 INFO L93 Difference]: Finished difference Result 10419 states and 14995 transitions. [2021-12-16 04:04:26,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 04:04:26,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2021-12-16 04:04:26,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:04:26,545 INFO L225 Difference]: With dead ends: 10419 [2021-12-16 04:04:26,546 INFO L226 Difference]: Without dead ends: 7129 [2021-12-16 04:04:26,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-16 04:04:26,564 INFO L933 BasicCegarLoop]: 2384 mSDtfsCounter, 4366 mSDsluCounter, 6755 mSDsCounter, 0 mSdLazyCounter, 5001 mSolverCounterSat, 2882 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4678 SdHoareTripleChecker+Valid, 9139 SdHoareTripleChecker+Invalid, 7883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2882 IncrementalHoareTripleChecker+Valid, 5001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-16 04:04:26,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4678 Valid, 9139 Invalid, 7883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2882 Valid, 5001 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-16 04:04:26,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2021-12-16 04:04:26,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 6596. [2021-12-16 04:04:26,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6596 states, 4590 states have (on average 1.3132897603485838) internal successors, (6028), 4669 states have internal predecessors, (6028), 1698 states have call successors, (1698), 308 states have call predecessors, (1698), 307 states have return successors, (1697), 1674 states have call predecessors, (1697), 1697 states have call successors, (1697) [2021-12-16 04:04:26,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6596 states to 6596 states and 9423 transitions. [2021-12-16 04:04:26,921 INFO L78 Accepts]: Start accepts. Automaton has 6596 states and 9423 transitions. Word has length 93 [2021-12-16 04:04:26,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:04:26,923 INFO L470 AbstractCegarLoop]: Abstraction has 6596 states and 9423 transitions. [2021-12-16 04:04:26,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:04:26,924 INFO L276 IsEmpty]: Start isEmpty. Operand 6596 states and 9423 transitions. [2021-12-16 04:04:26,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-16 04:04:26,931 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:04:26,931 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:04:26,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:04:26,931 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:04:26,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:04:26,932 INFO L85 PathProgramCache]: Analyzing trace with hash 658135424, now seen corresponding path program 1 times [2021-12-16 04:04:26,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:04:26,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133486635] [2021-12-16 04:04:26,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:04:26,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:04:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:27,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:04:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:27,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:04:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:04:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:27,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:04:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:27,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 04:04:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:27,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:04:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:27,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-16 04:04:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:27,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 04:04:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:27,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 04:04:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:27,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 04:04:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:27,174 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-16 04:04:27,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:04:27,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133486635] [2021-12-16 04:04:27,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133486635] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:04:27,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:04:27,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:04:27,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101442725] [2021-12-16 04:04:27,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:04:27,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:04:27,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:04:27,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:04:27,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:04:27,177 INFO L87 Difference]: Start difference. First operand 6596 states and 9423 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:04:32,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:04:32,893 INFO L93 Difference]: Finished difference Result 20821 states and 29933 transitions. [2021-12-16 04:04:32,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 04:04:32,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2021-12-16 04:04:32,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:04:32,981 INFO L225 Difference]: With dead ends: 20821 [2021-12-16 04:04:32,981 INFO L226 Difference]: Without dead ends: 14242 [2021-12-16 04:04:33,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-16 04:04:33,019 INFO L933 BasicCegarLoop]: 2363 mSDtfsCounter, 4369 mSDsluCounter, 6720 mSDsCounter, 0 mSdLazyCounter, 4997 mSolverCounterSat, 2904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4680 SdHoareTripleChecker+Valid, 9083 SdHoareTripleChecker+Invalid, 7901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2904 IncrementalHoareTripleChecker+Valid, 4997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:04:33,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4680 Valid, 9083 Invalid, 7901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2904 Valid, 4997 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-12-16 04:04:33,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14242 states. [2021-12-16 04:04:33,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14242 to 13179. [2021-12-16 04:04:33,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13179 states, 9175 states have (on average 1.3126975476839238) internal successors, (12044), 9331 states have internal predecessors, (12044), 3387 states have call successors, (3387), 617 states have call predecessors, (3387), 616 states have return successors, (3386), 3342 states have call predecessors, (3386), 3386 states have call successors, (3386) [2021-12-16 04:04:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13179 states to 13179 states and 18817 transitions. [2021-12-16 04:04:33,739 INFO L78 Accepts]: Start accepts. Automaton has 13179 states and 18817 transitions. Word has length 94 [2021-12-16 04:04:33,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:04:33,742 INFO L470 AbstractCegarLoop]: Abstraction has 13179 states and 18817 transitions. [2021-12-16 04:04:33,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:04:33,743 INFO L276 IsEmpty]: Start isEmpty. Operand 13179 states and 18817 transitions. [2021-12-16 04:04:33,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 04:04:33,752 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:04:33,752 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:04:33,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 04:04:33,753 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:04:33,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:04:33,753 INFO L85 PathProgramCache]: Analyzing trace with hash -302238636, now seen corresponding path program 1 times [2021-12-16 04:04:33,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:04:33,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400626637] [2021-12-16 04:04:33,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:04:33,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:04:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:33,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:04:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:04:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:33,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:04:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:33,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:04:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:33,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 04:04:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:33,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:04:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:33,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 04:04:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:33,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 04:04:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:33,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:04:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:33,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 04:04:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:33,976 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-16 04:04:33,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:04:33,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400626637] [2021-12-16 04:04:33,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400626637] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:04:33,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:04:33,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:04:33,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46545214] [2021-12-16 04:04:33,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:04:33,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:04:33,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:04:33,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:04:33,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:04:33,981 INFO L87 Difference]: Start difference. First operand 13179 states and 18817 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:04:39,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:04:39,719 INFO L93 Difference]: Finished difference Result 41620 states and 59781 transitions. [2021-12-16 04:04:39,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 04:04:39,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2021-12-16 04:04:39,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:04:39,884 INFO L225 Difference]: With dead ends: 41620 [2021-12-16 04:04:39,885 INFO L226 Difference]: Without dead ends: 28458 [2021-12-16 04:04:39,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-16 04:04:39,957 INFO L933 BasicCegarLoop]: 2374 mSDtfsCounter, 4367 mSDsluCounter, 6748 mSDsCounter, 0 mSdLazyCounter, 5007 mSolverCounterSat, 2894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4677 SdHoareTripleChecker+Valid, 9122 SdHoareTripleChecker+Invalid, 7901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2894 IncrementalHoareTripleChecker+Valid, 5007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-16 04:04:39,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4677 Valid, 9122 Invalid, 7901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2894 Valid, 5007 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-16 04:04:39,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28458 states. [2021-12-16 04:04:41,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28458 to 26343. [2021-12-16 04:04:41,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26343 states, 18345 states have (on average 1.3120741346415916) internal successors, (24070), 18653 states have internal predecessors, (24070), 6762 states have call successors, (6762), 1236 states have call predecessors, (6762), 1235 states have return successors, (6761), 6677 states have call predecessors, (6761), 6761 states have call successors, (6761) [2021-12-16 04:04:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26343 states to 26343 states and 37593 transitions. [2021-12-16 04:04:41,298 INFO L78 Accepts]: Start accepts. Automaton has 26343 states and 37593 transitions. Word has length 95 [2021-12-16 04:04:41,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:04:41,300 INFO L470 AbstractCegarLoop]: Abstraction has 26343 states and 37593 transitions. [2021-12-16 04:04:41,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:04:41,301 INFO L276 IsEmpty]: Start isEmpty. Operand 26343 states and 37593 transitions. [2021-12-16 04:04:41,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-16 04:04:41,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:04:41,310 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:04:41,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 04:04:41,310 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:04:41,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:04:41,311 INFO L85 PathProgramCache]: Analyzing trace with hash -320209748, now seen corresponding path program 1 times [2021-12-16 04:04:41,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:04:41,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183082895] [2021-12-16 04:04:41,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:04:41,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:04:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:04:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:04:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:04:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:04:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 04:04:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:04:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 04:04:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 04:04:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 04:04:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 04:04:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 04:04:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-16 04:04:41,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:04:41,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183082895] [2021-12-16 04:04:41,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183082895] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:04:41,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:04:41,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:04:41,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475679431] [2021-12-16 04:04:41,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:04:41,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:04:41,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:04:41,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:04:41,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:04:41,490 INFO L87 Difference]: Start difference. First operand 26343 states and 37593 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 04:04:46,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:04:46,544 INFO L93 Difference]: Finished difference Result 76739 states and 109734 transitions. [2021-12-16 04:04:46,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:04:46,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2021-12-16 04:04:46,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:04:46,872 INFO L225 Difference]: With dead ends: 76739 [2021-12-16 04:04:46,872 INFO L226 Difference]: Without dead ends: 50413 [2021-12-16 04:04:47,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:04:47,042 INFO L933 BasicCegarLoop]: 2304 mSDtfsCounter, 3791 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 2590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4023 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 5264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2590 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-16 04:04:47,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4023 Valid, 5357 Invalid, 5264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2590 Valid, 2674 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-16 04:04:47,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50413 states. [2021-12-16 04:04:48,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50413 to 46845. [2021-12-16 04:04:49,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46845 states, 32715 states have (on average 1.3081461103469356) internal successors, (42796), 33313 states have internal predecessors, (42796), 11823 states have call successors, (11823), 2323 states have call predecessors, (11823), 2306 states have return successors, (11822), 11622 states have call predecessors, (11822), 11822 states have call successors, (11822) [2021-12-16 04:04:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46845 states to 46845 states and 66441 transitions. [2021-12-16 04:04:49,309 INFO L78 Accepts]: Start accepts. Automaton has 46845 states and 66441 transitions. Word has length 107 [2021-12-16 04:04:49,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:04:49,311 INFO L470 AbstractCegarLoop]: Abstraction has 46845 states and 66441 transitions. [2021-12-16 04:04:49,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 04:04:49,311 INFO L276 IsEmpty]: Start isEmpty. Operand 46845 states and 66441 transitions. [2021-12-16 04:04:49,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-16 04:04:49,315 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:04:49,315 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:04:49,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 04:04:49,315 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:04:49,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:04:49,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1559019951, now seen corresponding path program 1 times [2021-12-16 04:04:49,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:04:49,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983145388] [2021-12-16 04:04:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:04:49,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:04:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:04:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:04:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:04:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:04:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 04:04:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:04:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-16 04:04:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:04:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 04:04:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 04:04:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 04:04:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:49,839 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-16 04:04:49,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:04:49,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983145388] [2021-12-16 04:04:49,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983145388] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 04:04:49,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846623906] [2021-12-16 04:04:49,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:04:49,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:04:49,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:04:49,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 04:04:49,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 04:04:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:50,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1947 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 04:04:50,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:04:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-16 04:04:50,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:04:50,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846623906] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:04:50,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 04:04:50,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2021-12-16 04:04:50,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863801389] [2021-12-16 04:04:50,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:04:50,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:04:50,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:04:50,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:04:50,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-12-16 04:04:50,775 INFO L87 Difference]: Start difference. First operand 46845 states and 66441 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 04:04:52,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:04:52,759 INFO L93 Difference]: Finished difference Result 117365 states and 166419 transitions. [2021-12-16 04:04:52,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 04:04:52,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2021-12-16 04:04:52,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:04:53,197 INFO L225 Difference]: With dead ends: 117365 [2021-12-16 04:04:53,199 INFO L226 Difference]: Without dead ends: 70537 [2021-12-16 04:04:53,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2021-12-16 04:04:53,379 INFO L933 BasicCegarLoop]: 3048 mSDtfsCounter, 2399 mSDsluCounter, 14544 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 17592 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:04:53,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2403 Valid, 17592 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 04:04:53,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70537 states. [2021-12-16 04:04:55,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70537 to 70242. [2021-12-16 04:04:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70242 states, 49070 states have (on average 1.3085592011412268) internal successors, (64211), 49986 states have internal predecessors, (64211), 17703 states have call successors, (17703), 3477 states have call predecessors, (17703), 3468 states have return successors, (17742), 17398 states have call predecessors, (17742), 17702 states have call successors, (17742) [2021-12-16 04:04:56,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70242 states to 70242 states and 99656 transitions. [2021-12-16 04:04:56,183 INFO L78 Accepts]: Start accepts. Automaton has 70242 states and 99656 transitions. Word has length 105 [2021-12-16 04:04:56,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:04:56,183 INFO L470 AbstractCegarLoop]: Abstraction has 70242 states and 99656 transitions. [2021-12-16 04:04:56,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 04:04:56,184 INFO L276 IsEmpty]: Start isEmpty. Operand 70242 states and 99656 transitions. [2021-12-16 04:04:56,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-16 04:04:56,189 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:04:56,189 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:04:56,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 04:04:56,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-16 04:04:56,411 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:04:56,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:04:56,412 INFO L85 PathProgramCache]: Analyzing trace with hash 121846562, now seen corresponding path program 1 times [2021-12-16 04:04:56,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:04:56,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162784482] [2021-12-16 04:04:56,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:04:56,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:04:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:04:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:04:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:04:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:04:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 04:04:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:04:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:04:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 04:04:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 04:04:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:04:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 04:04:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:56,642 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-16 04:04:56,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:04:56,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162784482] [2021-12-16 04:04:56,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162784482] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 04:04:56,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098747534] [2021-12-16 04:04:56,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:04:56,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:04:56,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:04:56,645 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 04:04:56,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process