./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.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 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:54:30,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:54:30,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:54:30,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:54:30,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:54:30,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:54:30,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:54:30,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:54:30,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:54:30,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:54:30,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:54:30,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:54:30,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:54:30,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:54:30,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:54:30,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:54:30,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:54:30,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:54:30,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:54:30,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:54:30,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:54:30,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:54:30,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:54:30,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:54:30,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:54:30,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:54:30,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:54:30,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:54:30,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:54:30,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:54:30,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:54:30,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:54:30,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:54:30,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:54:30,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:54:30,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:54:30,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:54:30,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:54:30,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:54:30,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:54:30,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:54:30,691 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:54:30,718 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:54:30,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:54:30,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:54:30,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:54:30,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:54:30,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:54:30,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:54:30,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:54:30,722 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:54:30,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:54:30,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:54:30,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:54:30,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:54:30,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:54:30,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:54:30,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:54:30,724 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:54:30,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:54:30,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:54:30,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:54:30,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:54:30,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:54:30,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:54:30,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:54:30,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:54:30,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:54:30,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:54:30,726 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:54:30,726 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:54:30,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:54:30,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:54:30,726 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 [2021-12-14 17:54:30,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:54:30,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:54:30,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:54:30,938 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:54:30,939 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:54:30,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-14 17:54:30,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e513aa8/5350fcb8b9094dddb078cd3fb3fdf268/FLAG8ed1915cf [2021-12-14 17:54:31,510 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:54:31,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-14 17:54:31,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e513aa8/5350fcb8b9094dddb078cd3fb3fdf268/FLAG8ed1915cf [2021-12-14 17:54:32,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e513aa8/5350fcb8b9094dddb078cd3fb3fdf268 [2021-12-14 17:54:32,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:54:32,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:54:32,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:54:32,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:54:32,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:54:32,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:54:32" (1/1) ... [2021-12-14 17:54:32,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d8006a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:32, skipping insertion in model container [2021-12-14 17:54:32,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:54:32" (1/1) ... [2021-12-14 17:54:32,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:54:32,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:54:32,813 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-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2021-12-14 17:54:32,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:54:32,845 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:54:33,036 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-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2021-12-14 17:54:33,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:54:33,092 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:54:33,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33 WrapperNode [2021-12-14 17:54:33,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:54:33,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:54:33,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:54:33,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:54:33,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33" (1/1) ... [2021-12-14 17:54:33,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33" (1/1) ... [2021-12-14 17:54:33,234 INFO L137 Inliner]: procedures = 159, calls = 1227, calls flagged for inlining = 70, calls inlined = 70, statements flattened = 3009 [2021-12-14 17:54:33,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:54:33,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:54:33,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:54:33,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:54:33,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33" (1/1) ... [2021-12-14 17:54:33,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33" (1/1) ... [2021-12-14 17:54:33,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33" (1/1) ... [2021-12-14 17:54:33,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33" (1/1) ... [2021-12-14 17:54:33,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33" (1/1) ... [2021-12-14 17:54:33,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33" (1/1) ... [2021-12-14 17:54:33,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33" (1/1) ... [2021-12-14 17:54:33,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:54:33,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:54:33,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:54:33,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:54:33,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33" (1/1) ... [2021-12-14 17:54:33,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:54:33,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:54:33,360 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) [2021-12-14 17:54:33,374 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 [2021-12-14 17:54:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2021-12-14 17:54:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2021-12-14 17:54:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:54:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:54:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:54:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:54:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:54:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:54:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 17:54:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 17:54:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2021-12-14 17:54:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2021-12-14 17:54:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2021-12-14 17:54:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2021-12-14 17:54:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2021-12-14 17:54:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2021-12-14 17:54:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2021-12-14 17:54:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2021-12-14 17:54:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:54:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:54:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-14 17:54:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-14 17:54:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:54:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:54:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2021-12-14 17:54:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2021-12-14 17:54:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2021-12-14 17:54:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2021-12-14 17:54:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2021-12-14 17:54:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2021-12-14 17:54:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:54:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:54:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-14 17:54:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-14 17:54:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2021-12-14 17:54:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2021-12-14 17:54:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:54:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:54:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:54:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-14 17:54:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-14 17:54:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-14 17:54:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-14 17:54:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:54:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:54:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2021-12-14 17:54:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2021-12-14 17:54:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2021-12-14 17:54:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2021-12-14 17:54:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:54:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:54:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2021-12-14 17:54:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2021-12-14 17:54:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 17:54:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 17:54:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:54:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:54:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:54:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2021-12-14 17:54:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2021-12-14 17:54:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2021-12-14 17:54:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2021-12-14 17:54:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2021-12-14 17:54:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2021-12-14 17:54:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2021-12-14 17:54:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2021-12-14 17:54:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:54:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 17:54:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 17:54:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:54:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2021-12-14 17:54:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2021-12-14 17:54:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:54:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2021-12-14 17:54:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2021-12-14 17:54:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-14 17:54:33,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-14 17:54:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2021-12-14 17:54:33,434 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2021-12-14 17:54:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2021-12-14 17:54:33,434 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2021-12-14 17:54:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2021-12-14 17:54:33,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2021-12-14 17:54:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2021-12-14 17:54:33,434 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2021-12-14 17:54:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:54:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-14 17:54:33,434 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-14 17:54:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:54:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:54:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2021-12-14 17:54:33,435 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2021-12-14 17:54:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-14 17:54:33,435 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-14 17:54:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2021-12-14 17:54:33,437 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2021-12-14 17:54:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2021-12-14 17:54:33,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2021-12-14 17:54:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 17:54:33,438 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 17:54:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:54:33,438 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:54:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:54:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2021-12-14 17:54:33,438 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2021-12-14 17:54:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2021-12-14 17:54:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2021-12-14 17:54:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2021-12-14 17:54:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2021-12-14 17:54:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2021-12-14 17:54:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2021-12-14 17:54:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2021-12-14 17:54:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2021-12-14 17:54:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2021-12-14 17:54:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2021-12-14 17:54:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:54:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-14 17:54:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:54:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:54:33,866 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:54:33,871 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:54:34,013 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:54:37,768 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:54:37,801 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:54:37,801 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:54:37,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:54:37 BoogieIcfgContainer [2021-12-14 17:54:37,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:54:37,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:54:37,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:54:37,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:54:37,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:54:32" (1/3) ... [2021-12-14 17:54:37,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4608085b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:54:37, skipping insertion in model container [2021-12-14 17:54:37,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:33" (2/3) ... [2021-12-14 17:54:37,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4608085b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:54:37, skipping insertion in model container [2021-12-14 17:54:37,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:54:37" (3/3) ... [2021-12-14 17:54:37,818 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-14 17:54:37,821 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:54:37,822 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:54:37,856 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:54:37,860 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 [2021-12-14 17:54:37,860 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:54:37,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 1039 states, 770 states have (on average 1.4025974025974026) internal successors, (1080), 786 states have internal predecessors, (1080), 217 states have call successors, (217), 51 states have call predecessors, (217), 50 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) [2021-12-14 17:54:37,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-14 17:54:37,901 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:54:37,902 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-14 17:54:37,903 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:54:37,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:54:37,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1529596494, now seen corresponding path program 1 times [2021-12-14 17:54:37,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:54:37,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135223191] [2021-12-14 17:54:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:54:37,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:54:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:54:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:54:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 17:54:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 17:54:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:38,457 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-14 17:54:38,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:54:38,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135223191] [2021-12-14 17:54:38,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135223191] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:54:38,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:54:38,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:54:38,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818862000] [2021-12-14 17:54:38,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:54:38,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:54:38,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:54:38,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:54:38,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:54:38,485 INFO L87 Difference]: Start difference. First operand has 1039 states, 770 states have (on average 1.4025974025974026) internal successors, (1080), 786 states have internal predecessors, (1080), 217 states have call successors, (217), 51 states have call predecessors, (217), 50 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 17:54:43,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:54:43,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:54:43,658 INFO L93 Difference]: Finished difference Result 2153 states and 3163 transitions. [2021-12-14 17:54:43,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 17:54:43,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2021-12-14 17:54:43,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:54:43,677 INFO L225 Difference]: With dead ends: 2153 [2021-12-14 17:54:43,677 INFO L226 Difference]: Without dead ends: 1101 [2021-12-14 17:54:43,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:54:43,693 INFO L933 BasicCegarLoop]: 1409 mSDtfsCounter, 602 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 569 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-14 17:54:43,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [613 Valid, 2738 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 840 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2021-12-14 17:54:43,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2021-12-14 17:54:43,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1022. [2021-12-14 17:54:43,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 762 states have (on average 1.3910761154855642) internal successors, (1060), 769 states have internal predecessors, (1060), 209 states have call successors, (209), 50 states have call predecessors, (209), 50 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) [2021-12-14 17:54:43,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1478 transitions. [2021-12-14 17:54:43,800 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1478 transitions. Word has length 94 [2021-12-14 17:54:43,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:54:43,800 INFO L470 AbstractCegarLoop]: Abstraction has 1022 states and 1478 transitions. [2021-12-14 17:54:43,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 17:54:43,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1478 transitions. [2021-12-14 17:54:43,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-14 17:54:43,824 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:54:43,824 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-14 17:54:43,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:54:43,825 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:54:43,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:54:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash -390287148, now seen corresponding path program 1 times [2021-12-14 17:54:43,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:54:43,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492110527] [2021-12-14 17:54:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:54:43,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:54:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:43,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:43,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:43,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:43,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:54:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:43,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:43,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:44,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:54:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:44,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:44,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:44,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 17:54:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:44,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 17:54:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:44,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:44,049 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-14 17:54:44,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:54:44,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492110527] [2021-12-14 17:54:44,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492110527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:54:44,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:54:44,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:54:44,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580740988] [2021-12-14 17:54:44,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:54:44,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:54:44,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:54:44,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:54:44,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:54:44,052 INFO L87 Difference]: Start difference. First operand 1022 states and 1478 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 17:54:47,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:54:49,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:54:49,573 INFO L93 Difference]: Finished difference Result 2609 states and 3766 transitions. [2021-12-14 17:54:49,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:54:49,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2021-12-14 17:54:49,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:54:49,581 INFO L225 Difference]: With dead ends: 2609 [2021-12-14 17:54:49,581 INFO L226 Difference]: Without dead ends: 1599 [2021-12-14 17:54:49,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 17:54:49,589 INFO L933 BasicCegarLoop]: 1468 mSDtfsCounter, 1453 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 803 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:54:49,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1524 Valid, 3958 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 1328 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2021-12-14 17:54:49,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2021-12-14 17:54:49,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1469. [2021-12-14 17:54:49,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1102 states have (on average 1.382032667876588) internal successors, (1523), 1114 states have internal predecessors, (1523), 286 states have call successors, (286), 80 states have call predecessors, (286), 80 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-12-14 17:54:49,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2095 transitions. [2021-12-14 17:54:49,696 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2095 transitions. Word has length 94 [2021-12-14 17:54:49,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:54:49,697 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 2095 transitions. [2021-12-14 17:54:49,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 17:54:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2095 transitions. [2021-12-14 17:54:49,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-14 17:54:49,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:54:49,708 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:54:49,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:54:49,708 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:54:49,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:54:49,709 INFO L85 PathProgramCache]: Analyzing trace with hash 606339028, now seen corresponding path program 1 times [2021-12-14 17:54:49,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:54:49,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609289024] [2021-12-14 17:54:49,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:54:49,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:54:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:49,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:49,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:49,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:49,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:54:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:49,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:49,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:54:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:49,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:49,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 17:54:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 17:54:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 17:54:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 17:54:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 17:54:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 17:54:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 17:54:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 17:54:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 17:54:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,211 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-12-14 17:54:50,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:54:50,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609289024] [2021-12-14 17:54:50,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609289024] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:54:50,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:54:50,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 17:54:50,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340818712] [2021-12-14 17:54:50,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:54:50,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 17:54:50,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:54:50,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 17:54:50,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-12-14 17:54:50,213 INFO L87 Difference]: Start difference. First operand 1469 states and 2095 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 17:54:55,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:54:57,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:54:59,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:55:01,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:55:03,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:55:09,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:09,507 INFO L93 Difference]: Finished difference Result 3783 states and 5392 transitions. [2021-12-14 17:55:09,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-14 17:55:09,508 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 222 [2021-12-14 17:55:09,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:09,533 INFO L225 Difference]: With dead ends: 3783 [2021-12-14 17:55:09,534 INFO L226 Difference]: Without dead ends: 2330 [2021-12-14 17:55:09,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2021-12-14 17:55:09,538 INFO L933 BasicCegarLoop]: 1631 mSDtfsCounter, 1299 mSDsluCounter, 8680 mSDsCounter, 0 mSdLazyCounter, 6956 mSolverCounterSat, 825 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 10311 SdHoareTripleChecker+Invalid, 7785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 825 IncrementalHoareTripleChecker+Valid, 6956 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:09,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1341 Valid, 10311 Invalid, 7785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [825 Valid, 6956 Invalid, 4 Unknown, 0 Unchecked, 18.9s Time] [2021-12-14 17:55:09,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2021-12-14 17:55:09,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2186. [2021-12-14 17:55:09,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 1639 states have (on average 1.3746186699206833) internal successors, (2253), 1666 states have internal predecessors, (2253), 404 states have call successors, (404), 132 states have call predecessors, (404), 142 states have return successors, (457), 398 states have call predecessors, (457), 404 states have call successors, (457) [2021-12-14 17:55:09,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 3114 transitions. [2021-12-14 17:55:09,594 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 3114 transitions. Word has length 222 [2021-12-14 17:55:09,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:09,596 INFO L470 AbstractCegarLoop]: Abstraction has 2186 states and 3114 transitions. [2021-12-14 17:55:09,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 17:55:09,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 3114 transitions. [2021-12-14 17:55:09,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-12-14 17:55:09,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:09,606 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:55:09,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:55:09,606 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:09,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:09,607 INFO L85 PathProgramCache]: Analyzing trace with hash -2079558733, now seen corresponding path program 1 times [2021-12-14 17:55:09,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:09,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166951990] [2021-12-14 17:55:09,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:09,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 17:55:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 17:55:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 17:55:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 17:55:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 17:55:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 17:55:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 17:55:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 17:55:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 17:55:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-14 17:55:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-14 17:55:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:10,002 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2021-12-14 17:55:10,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:10,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166951990] [2021-12-14 17:55:10,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166951990] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:10,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:10,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 17:55:10,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299746243] [2021-12-14 17:55:10,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:10,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 17:55:10,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:10,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 17:55:10,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-14 17:55:10,005 INFO L87 Difference]: Start difference. First operand 2186 states and 3114 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-14 17:55:12,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:55:14,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:14,456 INFO L93 Difference]: Finished difference Result 2307 states and 3282 transitions. [2021-12-14 17:55:14,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:55:14,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 244 [2021-12-14 17:55:14,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:14,467 INFO L225 Difference]: With dead ends: 2307 [2021-12-14 17:55:14,467 INFO L226 Difference]: Without dead ends: 2305 [2021-12-14 17:55:14,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-12-14 17:55:14,469 INFO L933 BasicCegarLoop]: 1389 mSDtfsCounter, 608 mSDsluCounter, 3677 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 5066 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:14,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [619 Valid, 5066 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-14 17:55:14,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2021-12-14 17:55:14,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2190. [2021-12-14 17:55:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2190 states, 1642 states have (on average 1.3733252131546894) internal successors, (2255), 1669 states have internal predecessors, (2255), 404 states have call successors, (404), 133 states have call predecessors, (404), 143 states have return successors, (457), 398 states have call predecessors, (457), 404 states have call successors, (457) [2021-12-14 17:55:14,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 3116 transitions. [2021-12-14 17:55:14,524 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 3116 transitions. Word has length 244 [2021-12-14 17:55:14,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:14,525 INFO L470 AbstractCegarLoop]: Abstraction has 2190 states and 3116 transitions. [2021-12-14 17:55:14,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-14 17:55:14,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 3116 transitions. [2021-12-14 17:55:14,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-12-14 17:55:14,532 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:14,533 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:55:14,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:55:14,533 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:14,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:14,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1521878376, now seen corresponding path program 1 times [2021-12-14 17:55:14,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:14,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764994845] [2021-12-14 17:55:14,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:14,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:14,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:14,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:14,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:14,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:14,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:14,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:14,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:14,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:14,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 17:55:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 17:55:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 17:55:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 17:55:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 17:55:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 17:55:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 17:55:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 17:55:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-14 17:55:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 17:55:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-14 17:55:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 107 proven. 20 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2021-12-14 17:55:15,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:15,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764994845] [2021-12-14 17:55:15,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764994845] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:55:15,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110181400] [2021-12-14 17:55:15,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:15,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:55:15,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:55:15,326 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) [2021-12-14 17:55:15,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 17:55:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:15,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 69 conjunts are in the unsatisfiable core [2021-12-14 17:55:15,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:55:16,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-14 17:55:16,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-14 17:55:16,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-14 17:55:16,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-14 17:55:16,455 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-14 17:55:16,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-14 17:55:16,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-14 17:55:16,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-14 17:55:16,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-14 17:55:16,602 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-14 17:55:16,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-14 17:55:16,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-14 17:55:16,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-14 17:55:16,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-14 17:55:16,722 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-14 17:55:16,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-14 17:55:16,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-14 17:55:16,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-12-14 17:55:16,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-14 17:55:30,980 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-14 17:55:30,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-14 17:55:31,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2021-12-14 17:55:31,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2021-12-14 17:55:31,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-14 17:55:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 263 proven. 72 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-12-14 17:55:31,339 INFO L328 TraceCheckSpWp]: Computing backward predicates...