./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9a12ad8c8f82d9497d9fb295ce6f252aae97c90123ce998a3f7bb078893d44d4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:05:24,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:05:24,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:05:24,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:05:24,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:05:24,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:05:24,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:05:24,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:05:24,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:05:24,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:05:24,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:05:24,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:05:24,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:05:24,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:05:24,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:05:24,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:05:24,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:05:24,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:05:24,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:05:24,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:05:24,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:05:24,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:05:24,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:05:24,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:05:24,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:05:24,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:05:24,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:05:24,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:05:24,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:05:24,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:05:24,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:05:24,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:05:24,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:05:24,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:05:24,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:05:24,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:05:24,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:05:24,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:05:24,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:05:24,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:05:24,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:05:24,115 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:05:24,139 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:05:24,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:05:24,140 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:05:24,140 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:05:24,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:05:24,141 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:05:24,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:05:24,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:05:24,142 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:05:24,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:05:24,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:05:24,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:05:24,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:05:24,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:05:24,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:05:24,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:05:24,143 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:05:24,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:05:24,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:05:24,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:05:24,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:05:24,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:05:24,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:05:24,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:05:24,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:05:24,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:05:24,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:05:24,145 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:05:24,145 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:05:24,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:05:24,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:05:24,146 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a12ad8c8f82d9497d9fb295ce6f252aae97c90123ce998a3f7bb078893d44d4 [2021-12-22 15:05:24,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:05:24,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:05:24,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:05:24,333 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:05:24,333 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:05:24,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i [2021-12-22 15:05:24,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd80e125a/c8971f98531740c79120103ac128d436/FLAGed1c6c130 [2021-12-22 15:05:24,951 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:05:24,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i [2021-12-22 15:05:24,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd80e125a/c8971f98531740c79120103ac128d436/FLAGed1c6c130 [2021-12-22 15:05:25,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd80e125a/c8971f98531740c79120103ac128d436 [2021-12-22 15:05:25,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:05:25,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:05:25,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:05:25,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:05:25,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:05:25,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:05:25" (1/1) ... [2021-12-22 15:05:25,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e8cb591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:25, skipping insertion in model container [2021-12-22 15:05:25,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:05:25" (1/1) ... [2021-12-22 15:05:25,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:05:25,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:05:26,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i[240484,240497] [2021-12-22 15:05:26,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:05:26,414 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:05:26,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i[240484,240497] [2021-12-22 15:05:26,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:05:26,744 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:05:26,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26 WrapperNode [2021-12-22 15:05:26,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:05:26,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:05:26,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:05:26,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:05:26,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26" (1/1) ... [2021-12-22 15:05:26,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26" (1/1) ... [2021-12-22 15:05:26,937 INFO L137 Inliner]: procedures = 250, calls = 2028, calls flagged for inlining = 112, calls inlined = 108, statements flattened = 4557 [2021-12-22 15:05:26,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:05:26,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:05:26,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:05:26,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:05:26,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26" (1/1) ... [2021-12-22 15:05:26,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26" (1/1) ... [2021-12-22 15:05:26,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26" (1/1) ... [2021-12-22 15:05:26,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26" (1/1) ... [2021-12-22 15:05:27,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26" (1/1) ... [2021-12-22 15:05:27,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26" (1/1) ... [2021-12-22 15:05:27,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26" (1/1) ... [2021-12-22 15:05:27,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:05:27,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:05:27,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:05:27,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:05:27,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26" (1/1) ... [2021-12-22 15:05:27,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:05:27,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:05:27,152 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) [2021-12-22 15:05:27,170 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 [2021-12-22 15:05:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:05:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:05:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:05:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:05:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure initio_status_msg [2021-12-22 15:05:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_status_msg [2021-12-22 15:05:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:05:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:05:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure initio_select_atn_stop [2021-12-22 15:05:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_select_atn_stop [2021-12-22 15:05:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgin_accept [2021-12-22 15:05:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgin_accept [2021-12-22 15:05:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure initio_remove_one [2021-12-22 15:05:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_remove_one [2021-12-22 15:05:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:05:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:05:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2021-12-22 15:05:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2021-12-22 15:05:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:05:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:05:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_scsi_rst [2021-12-22 15:05:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_scsi_rst [2021-12-22 15:05:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure initio_abort_srb [2021-12-22 15:05:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_abort_srb [2021-12-22 15:05:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:05:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:05:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2021-12-22 15:05:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2021-12-22 15:05:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:05:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:05:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure initio_next_state [2021-12-22 15:05:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_next_state [2021-12-22 15:05:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:05:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:05:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:05:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:05:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure initio_unlink_pend_scb [2021-12-22 15:05:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_unlink_pend_scb [2021-12-22 15:05:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 15:05:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 15:05:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_busy_scb [2021-12-22 15:05:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_busy_scb [2021-12-22 15:05:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-22 15:05:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-22 15:05:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:05:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_reject [2021-12-22 15:05:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_reject [2021-12-22 15:05:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:05:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure initio_se2_rd_all [2021-12-22 15:05:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_se2_rd_all [2021-12-22 15:05:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:05:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:05:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:05:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:05:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure initio_release_scb [2021-12-22 15:05:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_release_scb [2021-12-22 15:05:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_scsi [2021-12-22 15:05:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_scsi [2021-12-22 15:05:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 15:05:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 15:05:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-22 15:05:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-22 15:05:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-22 15:05:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-22 15:05:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:05:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:05:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:05:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_abort_targ [2021-12-22 15:05:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_abort_targ [2021-12-22 15:05:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 15:05:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 15:05:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:05:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure initio_se2_instr [2021-12-22 15:05:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_se2_instr [2021-12-22 15:05:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:05:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure initio_find_first_pend_scb [2021-12-22 15:05:27,197 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_find_first_pend_scb [2021-12-22 15:05:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:05:27,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:05:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure initio_unlink_busy_scb [2021-12-22 15:05:27,197 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_unlink_busy_scb [2021-12-22 15:05:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure initio_wait_done_disc [2021-12-22 15:05:27,197 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_wait_done_disc [2021-12-22 15:05:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-22 15:05:27,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-22 15:05:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:05:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:05:27,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:05:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure initio_stop_bm [2021-12-22 15:05:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_stop_bm [2021-12-22 15:05:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-22 15:05:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-22 15:05:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure wait_tulip [2021-12-22 15:05:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_tulip [2021-12-22 15:05:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:05:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:05:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure initio_pop_busy_scb [2021-12-22 15:05:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_pop_busy_scb [2021-12-22 15:05:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure initio_bad_seq [2021-12-22 15:05:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_bad_seq [2021-12-22 15:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:05:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_resel [2021-12-22 15:05:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_resel [2021-12-22 15:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-22 15:05:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-22 15:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_abort_tag [2021-12-22 15:05:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_abort_tag [2021-12-22 15:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:05:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-22 15:05:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-22 15:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-12-22 15:05:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-12-22 15:05:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure initio_reset_scsi [2021-12-22 15:05:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_reset_scsi [2021-12-22 15:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_done_scb [2021-12-22 15:05:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_done_scb [2021-12-22 15:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_pend_scb [2021-12-22 15:05:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_pend_scb [2021-12-22 15:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgin [2021-12-22 15:05:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgin [2021-12-22 15:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-22 15:05:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-22 15:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_main [2021-12-22 15:05:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_main [2021-12-22 15:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 15:05:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 15:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_busfree [2021-12-22 15:05:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_busfree [2021-12-22 15:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure initio_sync_done [2021-12-22 15:05:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_sync_done [2021-12-22 15:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure initio_wait_disc [2021-12-22 15:05:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_wait_disc [2021-12-22 15:05:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:05:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:05:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-12-22 15:05:27,238 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-12-22 15:05:27,778 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:05:27,781 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:05:27,990 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:05:31,479 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:05:31,489 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:05:31,490 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:05:31,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:05:31 BoogieIcfgContainer [2021-12-22 15:05:31,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:05:31,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:05:31,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:05:31,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:05:31,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:05:25" (1/3) ... [2021-12-22 15:05:31,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30996efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:05:31, skipping insertion in model container [2021-12-22 15:05:31,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:05:26" (2/3) ... [2021-12-22 15:05:31,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30996efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:05:31, skipping insertion in model container [2021-12-22 15:05:31,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:05:31" (3/3) ... [2021-12-22 15:05:31,497 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i [2021-12-22 15:05:31,500 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:05:31,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:05:31,534 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:05:31,539 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 [2021-12-22 15:05:31,539 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:05:31,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 1799 states, 1216 states have (on average 1.3338815789473684) internal successors, (1622), 1253 states have internal predecessors, (1622), 519 states have call successors, (519), 63 states have call predecessors, (519), 62 states have return successors, (513), 507 states have call predecessors, (513), 513 states have call successors, (513) [2021-12-22 15:05:31,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-22 15:05:31,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:31,590 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:31,590 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:31,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:31,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1180646586, now seen corresponding path program 1 times [2021-12-22 15:05:31,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:31,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658496955] [2021-12-22 15:05:31,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:31,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:05:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:05:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:05:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:05:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:05:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:32,247 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-22 15:05:32,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:32,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658496955] [2021-12-22 15:05:32,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658496955] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:05:32,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:05:32,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:05:32,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198000235] [2021-12-22 15:05:32,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:05:32,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:05:32,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:05:32,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:05:32,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:05:32,280 INFO L87 Difference]: Start difference. First operand has 1799 states, 1216 states have (on average 1.3338815789473684) internal successors, (1622), 1253 states have internal predecessors, (1622), 519 states have call successors, (519), 63 states have call predecessors, (519), 62 states have return successors, (513), 507 states have call predecessors, (513), 513 states have call successors, (513) Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:05:34,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:05:35,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:05:37,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:05:43,524 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 [] [2021-12-22 15:05:45,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:45,392 INFO L93 Difference]: Finished difference Result 3894 states and 5814 transitions. [2021-12-22 15:05:45,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:05:45,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 93 [2021-12-22 15:05:45,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:45,414 INFO L225 Difference]: With dead ends: 3894 [2021-12-22 15:05:45,414 INFO L226 Difference]: Without dead ends: 2084 [2021-12-22 15:05:45,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:05:45,426 INFO L933 BasicCegarLoop]: 2053 mSDtfsCounter, 1989 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 5523 mSolverCounterSat, 1578 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2350 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 7102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1578 IncrementalHoareTripleChecker+Valid, 5523 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:45,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2350 Valid, 3182 Invalid, 7102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1578 Valid, 5523 Invalid, 1 Unknown, 0 Unchecked, 12.8s Time] [2021-12-22 15:05:45,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2021-12-22 15:05:45,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 1783. [2021-12-22 15:05:45,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1208 states have (on average 1.326158940397351) internal successors, (1602), 1237 states have internal predecessors, (1602), 513 states have call successors, (513), 62 states have call predecessors, (513), 61 states have return successors, (510), 504 states have call predecessors, (510), 510 states have call successors, (510) [2021-12-22 15:05:45,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2625 transitions. [2021-12-22 15:05:45,590 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2625 transitions. Word has length 93 [2021-12-22 15:05:45,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:45,591 INFO L470 AbstractCegarLoop]: Abstraction has 1783 states and 2625 transitions. [2021-12-22 15:05:45,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:05:45,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2625 transitions. [2021-12-22 15:05:45,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-22 15:05:45,600 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:45,600 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:45,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:05:45,601 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:45,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:45,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1336409410, now seen corresponding path program 1 times [2021-12-22 15:05:45,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:45,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460903464] [2021-12-22 15:05:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:45,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:05:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:05:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:05:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:05:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:05:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:45,901 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-22 15:05:45,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:45,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460903464] [2021-12-22 15:05:45,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460903464] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:05:45,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:05:45,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:05:45,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827599927] [2021-12-22 15:05:45,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:05:45,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:05:45,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:05:45,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:05:45,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:05:45,905 INFO L87 Difference]: Start difference. First operand 1783 states and 2625 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-22 15:05:49,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:05:51,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:05:54,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:06:02,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:06:05,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:06:07,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:06:07,238 INFO L93 Difference]: Finished difference Result 5900 states and 8799 transitions. [2021-12-22 15:06:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 15:06:07,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 93 [2021-12-22 15:06:07,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:06:07,297 INFO L225 Difference]: With dead ends: 5900 [2021-12-22 15:06:07,297 INFO L226 Difference]: Without dead ends: 4133 [2021-12-22 15:06:07,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-22 15:06:07,307 INFO L933 BasicCegarLoop]: 2437 mSDtfsCounter, 5546 mSDsluCounter, 2027 mSDsCounter, 0 mSdLazyCounter, 10053 mSolverCounterSat, 4380 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6007 SdHoareTripleChecker+Valid, 4464 SdHoareTripleChecker+Invalid, 14435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4380 IncrementalHoareTripleChecker+Valid, 10053 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:06:07,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6007 Valid, 4464 Invalid, 14435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4380 Valid, 10053 Invalid, 2 Unknown, 0 Unchecked, 20.9s Time] [2021-12-22 15:06:07,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4133 states. [2021-12-22 15:06:07,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4133 to 3531. [2021-12-22 15:06:07,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3531 states, 2392 states have (on average 1.3269230769230769) internal successors, (3174), 2448 states have internal predecessors, (3174), 1016 states have call successors, (1016), 123 states have call predecessors, (1016), 122 states have return successors, (1013), 1001 states have call predecessors, (1013), 1013 states have call successors, (1013) [2021-12-22 15:06:07,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 5203 transitions. [2021-12-22 15:06:07,479 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 5203 transitions. Word has length 93 [2021-12-22 15:06:07,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:06:07,480 INFO L470 AbstractCegarLoop]: Abstraction has 3531 states and 5203 transitions. [2021-12-22 15:06:07,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-22 15:06:07,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 5203 transitions. [2021-12-22 15:06:07,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-22 15:06:07,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:06:07,485 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:06:07,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:06:07,485 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:06:07,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:06:07,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1883856890, now seen corresponding path program 1 times [2021-12-22 15:06:07,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:06:07,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154875918] [2021-12-22 15:06:07,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:06:07,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:06:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:06:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:06:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:06:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:06:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:06:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:06:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 15:06:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:07,732 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-12-22 15:06:07,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:06:07,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154875918] [2021-12-22 15:06:07,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154875918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:06:07,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:06:07,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:06:07,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212408702] [2021-12-22 15:06:07,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:06:07,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:06:07,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:06:07,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:06:07,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:06:07,738 INFO L87 Difference]: Start difference. First operand 3531 states and 5203 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-22 15:06:09,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:06:11,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:06:13,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:06:19,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:06:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:06:21,719 INFO L93 Difference]: Finished difference Result 4151 states and 6213 transitions. [2021-12-22 15:06:21,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:06:21,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 113 [2021-12-22 15:06:21,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:06:21,743 INFO L225 Difference]: With dead ends: 4151 [2021-12-22 15:06:21,744 INFO L226 Difference]: Without dead ends: 4142 [2021-12-22 15:06:21,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-22 15:06:21,750 INFO L933 BasicCegarLoop]: 2048 mSDtfsCounter, 3861 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 5532 mSolverCounterSat, 3009 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3963 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 8544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3009 IncrementalHoareTripleChecker+Valid, 5532 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:06:21,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3963 Valid, 3166 Invalid, 8544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3009 Valid, 5532 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2021-12-22 15:06:21,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4142 states. [2021-12-22 15:06:21,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4142 to 3531. [2021-12-22 15:06:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3531 states, 2392 states have (on average 1.326505016722408) internal successors, (3173), 2448 states have internal predecessors, (3173), 1016 states have call successors, (1016), 123 states have call predecessors, (1016), 122 states have return successors, (1013), 1001 states have call predecessors, (1013), 1013 states have call successors, (1013) [2021-12-22 15:06:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 5202 transitions. [2021-12-22 15:06:21,978 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 5202 transitions. Word has length 113 [2021-12-22 15:06:21,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:06:21,978 INFO L470 AbstractCegarLoop]: Abstraction has 3531 states and 5202 transitions. [2021-12-22 15:06:21,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-22 15:06:21,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 5202 transitions. [2021-12-22 15:06:21,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-22 15:06:21,983 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:06:21,983 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:06:21,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:06:21,984 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:06:21,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:06:21,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1826598588, now seen corresponding path program 1 times [2021-12-22 15:06:21,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:06:21,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080893245] [2021-12-22 15:06:21,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:06:21,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:06:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:06:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:06:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:06:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:06:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:06:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:06:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 15:06:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:22,204 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-12-22 15:06:22,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:06:22,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080893245] [2021-12-22 15:06:22,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080893245] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:06:22,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:06:22,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:06:22,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834404883] [2021-12-22 15:06:22,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:06:22,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:06:22,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:06:22,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:06:22,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:06:22,206 INFO L87 Difference]: Start difference. First operand 3531 states and 5202 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 15:06:27,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:06:27,678 INFO L93 Difference]: Finished difference Result 4135 states and 6193 transitions. [2021-12-22 15:06:27,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:06:27,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 113 [2021-12-22 15:06:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:06:27,725 INFO L225 Difference]: With dead ends: 4135 [2021-12-22 15:06:27,726 INFO L226 Difference]: Without dead ends: 4132 [2021-12-22 15:06:27,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:06:27,727 INFO L933 BasicCegarLoop]: 2018 mSDtfsCounter, 4823 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 4505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4922 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 6892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4505 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:06:27,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4922 Valid, 2600 Invalid, 6892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4505 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-12-22 15:06:27,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4132 states. [2021-12-22 15:06:27,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4132 to 3530. [2021-12-22 15:06:27,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 2392 states have (on average 1.326086956521739) internal successors, (3172), 2447 states have internal predecessors, (3172), 1015 states have call successors, (1015), 123 states have call predecessors, (1015), 122 states have return successors, (1013), 1001 states have call predecessors, (1013), 1013 states have call successors, (1013) [2021-12-22 15:06:27,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 5200 transitions. [2021-12-22 15:06:27,883 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 5200 transitions. Word has length 113 [2021-12-22 15:06:27,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:06:27,884 INFO L470 AbstractCegarLoop]: Abstraction has 3530 states and 5200 transitions. [2021-12-22 15:06:27,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 15:06:27,884 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 5200 transitions. [2021-12-22 15:06:27,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-22 15:06:27,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:06:27,885 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:06:27,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:06:27,886 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:06:27,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:06:27,886 INFO L85 PathProgramCache]: Analyzing trace with hash -790812121, now seen corresponding path program 1 times [2021-12-22 15:06:27,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:06:27,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12813384] [2021-12-22 15:06:27,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:06:27,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:06:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:27,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:06:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:27,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:27,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:27,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:06:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:27,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:27,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:27,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:06:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:28,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:28,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:28,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:06:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:28,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:06:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:28,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:28,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:28,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:06:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:28,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 15:06:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:28,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:06:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:06:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:06:28,059 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-12-22 15:06:28,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:06:28,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12813384] [2021-12-22 15:06:28,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12813384] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:06:28,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:06:28,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:06:28,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792147685] [2021-12-22 15:06:28,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:06:28,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:06:28,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:06:28,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:06:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:06:28,062 INFO L87 Difference]: Start difference. First operand 3530 states and 5200 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)