./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.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 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 15:39:02,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 15:39:02,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 15:39:02,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 15:39:02,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 15:39:02,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 15:39:02,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 15:39:02,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 15:39:02,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 15:39:02,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 15:39:02,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 15:39:02,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 15:39:02,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 15:39:02,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 15:39:02,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 15:39:02,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 15:39:02,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 15:39:02,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 15:39:02,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 15:39:02,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 15:39:02,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 15:39:02,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 15:39:02,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 15:39:02,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 15:39:02,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 15:39:02,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 15:39:02,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 15:39:02,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 15:39:02,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 15:39:02,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 15:39:02,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 15:39:02,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 15:39:02,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 15:39:02,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 15:39:02,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 15:39:02,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 15:39:02,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 15:39:02,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 15:39:02,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 15:39:02,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 15:39:02,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 15:39:02,684 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 15:39:02,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 15:39:02,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 15:39:02,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 15:39:02,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 15:39:02,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 15:39:02,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 15:39:02,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 15:39:02,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 15:39:02,720 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 15:39:02,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 15:39:02,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 15:39:02,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 15:39:02,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 15:39:02,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 15:39:02,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 15:39:02,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 15:39:02,723 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 15:39:02,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 15:39:02,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 15:39:02,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 15:39:02,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 15:39:02,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:39:02,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 15:39:02,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 15:39:02,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 15:39:02,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 15:39:02,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 15:39:02,725 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 15:39:02,725 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 15:39:02,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 15:39:02,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 15:39:02,726 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 [2021-12-21 15:39:02,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 15:39:02,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 15:39:02,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 15:39:02,957 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 15:39:02,957 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 15:39:02,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-21 15:39:03,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf846994b/a87948caabb1410096233185de2fec04/FLAG4be2ebcb0 [2021-12-21 15:39:03,774 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 15:39:03,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-21 15:39:03,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf846994b/a87948caabb1410096233185de2fec04/FLAG4be2ebcb0 [2021-12-21 15:39:04,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf846994b/a87948caabb1410096233185de2fec04 [2021-12-21 15:39:04,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 15:39:04,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 15:39:04,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 15:39:04,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 15:39:04,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 15:39:04,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:39:04" (1/1) ... [2021-12-21 15:39:04,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@426bdced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:04, skipping insertion in model container [2021-12-21 15:39:04,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:39:04" (1/1) ... [2021-12-21 15:39:04,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 15:39:04,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 15:39:05,672 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-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-12-21 15:39:06,037 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-21 15:39:06,045 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-21 15:39:06,046 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-21 15:39:06,052 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-21 15:39:06,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:39:07,020 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 15:39:07,210 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-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-12-21 15:39:07,294 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-21 15:39:07,296 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-21 15:39:07,296 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-21 15:39:07,298 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-21 15:39:07,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:39:07,753 INFO L208 MainTranslator]: Completed translation [2021-12-21 15:39:07,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07 WrapperNode [2021-12-21 15:39:07,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 15:39:07,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 15:39:07,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 15:39:07,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 15:39:07,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07" (1/1) ... [2021-12-21 15:39:07,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07" (1/1) ... [2021-12-21 15:39:08,072 INFO L137 Inliner]: procedures = 352, calls = 6445, calls flagged for inlining = 152, calls inlined = 32, statements flattened = 4275 [2021-12-21 15:39:08,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 15:39:08,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 15:39:08,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 15:39:08,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 15:39:08,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07" (1/1) ... [2021-12-21 15:39:08,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07" (1/1) ... [2021-12-21 15:39:08,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07" (1/1) ... [2021-12-21 15:39:08,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07" (1/1) ... [2021-12-21 15:39:08,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07" (1/1) ... [2021-12-21 15:39:08,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07" (1/1) ... [2021-12-21 15:39:08,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07" (1/1) ... [2021-12-21 15:39:08,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 15:39:08,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 15:39:08,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 15:39:08,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 15:39:08,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07" (1/1) ... [2021-12-21 15:39:08,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:39:08,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:39:08,292 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) [2021-12-21 15:39:08,316 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 [2021-12-21 15:39:08,330 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-12-21 15:39:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-12-21 15:39:08,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-21 15:39:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-21 15:39:08,330 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-21 15:39:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 15:39:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 15:39:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-12-21 15:39:08,331 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-12-21 15:39:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-21 15:39:08,331 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-21 15:39:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 15:39:08,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 15:39:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-21 15:39:08,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-21 15:39:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2021-12-21 15:39:08,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2021-12-21 15:39:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-21 15:39:08,333 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-21 15:39:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 15:39:08,333 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 15:39:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-12-21 15:39:08,333 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-12-21 15:39:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 15:39:08,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 15:39:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_enterconfigmode [2021-12-21 15:39:08,334 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_enterconfigmode [2021-12-21 15:39:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 15:39:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 15:39:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 15:39:08,335 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 15:39:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure if_ioctl [2021-12-21 15:39:08,335 INFO L138 BoogieDeclarations]: Found implementation of procedure if_ioctl [2021-12-21 15:39:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-21 15:39:08,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-21 15:39:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 15:39:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 15:39:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-21 15:39:08,336 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-21 15:39:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmget [2021-12-21 15:39:08,336 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmget [2021-12-21 15:39:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 15:39:08,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 15:39:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 15:39:08,337 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 15:39:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure if_config [2021-12-21 15:39:08,338 INFO L138 BoogieDeclarations]: Found implementation of procedure if_config [2021-12-21 15:39:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 15:39:08,338 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 15:39:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure if_chars_in_buffer [2021-12-21 15:39:08,339 INFO L138 BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer [2021-12-21 15:39:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure if_write_room [2021-12-21 15:39:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure if_write_room [2021-12-21 15:39:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure if_lock [2021-12-21 15:39:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure if_lock [2021-12-21 15:39:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 15:39:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 15:39:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure if_throttle [2021-12-21 15:39:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure if_throttle [2021-12-21 15:39:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-21 15:39:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-21 15:39:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 15:39:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-21 15:39:08,342 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-21 15:39:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-12-21 15:39:08,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-12-21 15:39:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-21 15:39:08,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-21 15:39:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 15:39:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 15:39:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 15:39:08,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 15:39:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 15:39:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-21 15:39:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 15:39:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-21 15:39:08,344 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-21 15:39:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 15:39:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 15:39:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 15:39:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 15:39:08,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 15:39:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-21 15:39:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-21 15:39:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmset [2021-12-21 15:39:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmset [2021-12-21 15:39:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-21 15:39:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-21 15:39:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure if_open [2021-12-21 15:39:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure if_open [2021-12-21 15:39:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 15:39:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 15:39:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure setflags [2021-12-21 15:39:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setflags [2021-12-21 15:39:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-21 15:39:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-21 15:39:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure if_unthrottle [2021-12-21 15:39:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure if_unthrottle [2021-12-21 15:39:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 15:39:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-21 15:39:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-21 15:39:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 15:39:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 15:39:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-21 15:39:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-21 15:39:08,783 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 15:39:08,785 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 15:39:09,144 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-21 15:39:09,145 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-21 15:39:09,163 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 15:39:09,165 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 15:39:09,341 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false;call ULTIMATE.dealloc(if_version_~#version~0#1.base, if_version_~#version~0#1.offset);havoc if_version_~#version~0#1.base, if_version_~#version~0#1.offset;call ULTIMATE.dealloc(if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset);havoc if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset;call ULTIMATE.dealloc(if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset);havoc if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset; [2021-12-21 15:39:09,341 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-12-21 15:39:09,341 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume !false; [2021-12-21 15:39:09,342 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##52: assume false; [2021-12-21 15:39:09,342 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2021-12-21 15:39:09,342 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2021-12-21 15:39:09,342 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2021-12-21 15:39:09,342 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2021-12-21 15:39:09,351 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2021-12-21 15:39:09,351 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2021-12-21 15:39:09,351 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-21 15:39:09,352 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-21 15:39:09,461 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2021-12-21 15:39:09,461 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2021-12-21 15:39:09,461 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012-1: ~tmp~4#1.base, ~tmp~4#1.offset := #t~ret76#1.base, #t~ret76#1.offset;havoc #t~ret76#1.base, #t~ret76#1.offset;~__ptr~0#1.base, ~__ptr~0#1.offset := ~tmp~4#1.base, ~tmp~4#1.offset; [2021-12-21 15:39:09,461 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012: SUMMARY for call #t~ret76#1.base, #t~ret76#1.offset := get_current(); srcloc: null [2021-12-21 15:39:09,463 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 15:39:09,464 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 15:39:09,464 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 15:39:09,545 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-21 15:39:09,546 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-21 15:39:09,546 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2021-12-21 15:39:09,546 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2021-12-21 15:39:09,546 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-12-21 15:39:09,546 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-12-21 15:39:09,713 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 15:39:57,507 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2021-12-21 15:39:57,508 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2021-12-21 15:39:57,525 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 15:39:57,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 15:39:57,539 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-21 15:39:57,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:39:57 BoogieIcfgContainer [2021-12-21 15:39:57,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 15:39:57,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 15:39:57,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 15:39:57,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 15:39:57,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:39:04" (1/3) ... [2021-12-21 15:39:57,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dca839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:39:57, skipping insertion in model container [2021-12-21 15:39:57,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:39:07" (2/3) ... [2021-12-21 15:39:57,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dca839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:39:57, skipping insertion in model container [2021-12-21 15:39:57,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:39:57" (3/3) ... [2021-12-21 15:39:57,551 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-21 15:39:57,558 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 15:39:57,558 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 15:39:57,609 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:39:57,616 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 [2021-12-21 15:39:57,616 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 15:39:57,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 662 states, 501 states have (on average 1.405189620758483) internal successors, (704), 514 states have internal predecessors, (704), 117 states have call successors, (117), 43 states have call predecessors, (117), 43 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2021-12-21 15:39:57,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-21 15:39:57,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:39:57,661 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:39:57,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:39:57,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:39:57,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1164007444, now seen corresponding path program 1 times [2021-12-21 15:39:57,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:39:57,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239771622] [2021-12-21 15:39:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:39:57,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:39:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:39:58,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:39:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:39:58,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 15:39:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:39:58,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-21 15:39:58,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:39:58,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239771622] [2021-12-21 15:39:58,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239771622] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:39:58,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:39:58,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 15:39:58,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079446862] [2021-12-21 15:39:58,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:39:58,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 15:39:58,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:39:58,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 15:39:58,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 15:39:58,476 INFO L87 Difference]: Start difference. First operand has 662 states, 501 states have (on average 1.405189620758483) internal successors, (704), 514 states have internal predecessors, (704), 117 states have call successors, (117), 43 states have call predecessors, (117), 43 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 15:40:00,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:00,915 INFO L93 Difference]: Finished difference Result 2166 states and 3205 transitions. [2021-12-21 15:40:00,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 15:40:00,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-12-21 15:40:00,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:00,942 INFO L225 Difference]: With dead ends: 2166 [2021-12-21 15:40:00,946 INFO L226 Difference]: Without dead ends: 1501 [2021-12-21 15:40:00,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 15:40:00,961 INFO L933 BasicCegarLoop]: 1025 mSDtfsCounter, 1607 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:00,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1697 Valid, 2168 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-21 15:40:00,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2021-12-21 15:40:01,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1392. [2021-12-21 15:40:01,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1063 states have (on average 1.3904045155221072) internal successors, (1478), 1087 states have internal predecessors, (1478), 237 states have call successors, (237), 85 states have call predecessors, (237), 91 states have return successors, (282), 239 states have call predecessors, (282), 235 states have call successors, (282) [2021-12-21 15:40:01,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1997 transitions. [2021-12-21 15:40:01,148 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1997 transitions. Word has length 22 [2021-12-21 15:40:01,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:01,150 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 1997 transitions. [2021-12-21 15:40:01,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 15:40:01,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1997 transitions. [2021-12-21 15:40:01,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-21 15:40:01,161 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:01,161 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-21 15:40:01,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 15:40:01,162 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:01,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:01,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1727764396, now seen corresponding path program 1 times [2021-12-21 15:40:01,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:01,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712053395] [2021-12-21 15:40:01,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:01,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:01,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 15:40:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:01,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 15:40:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:01,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-21 15:40:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:01,573 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-21 15:40:01,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:01,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712053395] [2021-12-21 15:40:01,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712053395] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:01,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:40:01,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 15:40:01,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547455512] [2021-12-21 15:40:01,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:01,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 15:40:01,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:01,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 15:40:01,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 15:40:01,581 INFO L87 Difference]: Start difference. First operand 1392 states and 1997 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 15:40:03,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:03,276 INFO L93 Difference]: Finished difference Result 3053 states and 4444 transitions. [2021-12-21 15:40:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 15:40:03,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2021-12-21 15:40:03,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:03,287 INFO L225 Difference]: With dead ends: 3053 [2021-12-21 15:40:03,287 INFO L226 Difference]: Without dead ends: 1667 [2021-12-21 15:40:03,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 15:40:03,293 INFO L933 BasicCegarLoop]: 931 mSDtfsCounter, 483 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:03,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 2015 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-21 15:40:03,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2021-12-21 15:40:03,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1561. [2021-12-21 15:40:03,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1196 states have (on average 1.4030100334448161) internal successors, (1678), 1226 states have internal predecessors, (1678), 273 states have call successors, (273), 85 states have call predecessors, (273), 91 states have return successors, (327), 273 states have call predecessors, (327), 271 states have call successors, (327) [2021-12-21 15:40:03,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2278 transitions. [2021-12-21 15:40:03,350 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2278 transitions. Word has length 42 [2021-12-21 15:40:03,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:03,351 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 2278 transitions. [2021-12-21 15:40:03,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 15:40:03,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2278 transitions. [2021-12-21 15:40:03,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-21 15:40:03,353 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:03,354 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-21 15:40:03,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 15:40:03,354 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:03,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:03,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2016306839, now seen corresponding path program 1 times [2021-12-21 15:40:03,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:03,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392504954] [2021-12-21 15:40:03,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:03,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:03,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:03,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 15:40:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:03,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 15:40:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:03,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 15:40:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-21 15:40:03,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:03,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392504954] [2021-12-21 15:40:03,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392504954] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:03,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:40:03,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 15:40:03,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563124886] [2021-12-21 15:40:03,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:03,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:40:03,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:03,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:40:03,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:40:03,775 INFO L87 Difference]: Start difference. First operand 1561 states and 2278 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 15:40:07,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:07,062 INFO L93 Difference]: Finished difference Result 3311 states and 4968 transitions. [2021-12-21 15:40:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:40:07,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2021-12-21 15:40:07,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:07,073 INFO L225 Difference]: With dead ends: 3311 [2021-12-21 15:40:07,074 INFO L226 Difference]: Without dead ends: 1757 [2021-12-21 15:40:07,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-12-21 15:40:07,083 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 1015 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:07,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 3993 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-21 15:40:07,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2021-12-21 15:40:07,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1543. [2021-12-21 15:40:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1170 states have (on average 1.3974358974358974) internal successors, (1635), 1199 states have internal predecessors, (1635), 278 states have call successors, (278), 85 states have call predecessors, (278), 94 states have return successors, (337), 284 states have call predecessors, (337), 276 states have call successors, (337) [2021-12-21 15:40:07,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2250 transitions. [2021-12-21 15:40:07,142 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2250 transitions. Word has length 47 [2021-12-21 15:40:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:07,143 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2250 transitions. [2021-12-21 15:40:07,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 15:40:07,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2250 transitions. [2021-12-21 15:40:07,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-21 15:40:07,145 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:07,146 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-21 15:40:07,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 15:40:07,146 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:07,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:07,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2124098365, now seen corresponding path program 1 times [2021-12-21 15:40:07,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:07,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496448566] [2021-12-21 15:40:07,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:07,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:07,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:07,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 15:40:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:07,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 15:40:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:07,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:07,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-21 15:40:07,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:07,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496448566] [2021-12-21 15:40:07,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496448566] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:07,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:40:07,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 15:40:07,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74657536] [2021-12-21 15:40:07,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:07,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 15:40:07,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:07,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 15:40:07,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-21 15:40:07,590 INFO L87 Difference]: Start difference. First operand 1543 states and 2250 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-21 15:40:08,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []