./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-08_1a-drivers--vfio--vfio.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-08_1a-drivers--vfio--vfio.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 c63ca5a13217ab3c82769d6ebc8e69dd180f3b7d25df235b9ae7098d5fa1543b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:57:31,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:57:31,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:57:31,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:57:31,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:57:31,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:57:31,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:57:31,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:57:31,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:57:31,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:57:31,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:57:31,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:57:31,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:57:31,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:57:31,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:57:31,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:57:31,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:57:31,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:57:31,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:57:31,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:57:31,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:57:31,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:57:31,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:57:31,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:57:31,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:57:31,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:57:31,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:57:31,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:57:31,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:57:31,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:57:31,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:57:31,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:57:31,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:57:31,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:57:31,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:57:31,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:57:31,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:57:31,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:57:31,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:57:31,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:57:31,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:57:31,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:57:31,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:57:31,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:57:31,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:57:31,190 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:57:31,191 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:57:31,191 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:57:31,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:57:31,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:57:31,192 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:57:31,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:57:31,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:57:31,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:57:31,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:57:31,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:57:31,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:57:31,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:57:31,194 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:57:31,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:57:31,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:57:31,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:57:31,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:57:31,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:57:31,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:57:31,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:57:31,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:57:31,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:57:31,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:57:31,196 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:57:31,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:57:31,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:57:31,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:57:31,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c63ca5a13217ab3c82769d6ebc8e69dd180f3b7d25df235b9ae7098d5fa1543b [2021-12-22 14:57:31,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:57:31,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:57:31,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:57:31,467 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:57:31,467 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:57:31,468 INFO L432 ainManager$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-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2021-12-22 14:57:31,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3e5f01c2/b5cf4a58c3c14b7b9ababc4aa74ca1f7/FLAGd8d64417b [2021-12-22 14:57:32,180 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:57:32,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2021-12-22 14:57:32,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3e5f01c2/b5cf4a58c3c14b7b9ababc4aa74ca1f7/FLAGd8d64417b [2021-12-22 14:57:32,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3e5f01c2/b5cf4a58c3c14b7b9ababc4aa74ca1f7 [2021-12-22 14:57:32,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:57:32,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:57:32,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:57:32,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:57:32,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:57:32,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:57:32" (1/1) ... [2021-12-22 14:57:32,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72294f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:32, skipping insertion in model container [2021-12-22 14:57:32,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:57:32" (1/1) ... [2021-12-22 14:57:32,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:57:32,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:57:33,930 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-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i[198983,198996] [2021-12-22 14:57:33,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:57:34,029 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:57:34,286 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-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i[198983,198996] [2021-12-22 14:57:34,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:57:34,403 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:57:34,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34 WrapperNode [2021-12-22 14:57:34,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:57:34,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:57:34,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:57:34,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:57:34,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34" (1/1) ... [2021-12-22 14:57:34,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34" (1/1) ... [2021-12-22 14:57:34,590 INFO L137 Inliner]: procedures = 244, calls = 1516, calls flagged for inlining = 92, calls inlined = 80, statements flattened = 2942 [2021-12-22 14:57:34,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:57:34,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:57:34,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:57:34,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:57:34,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34" (1/1) ... [2021-12-22 14:57:34,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34" (1/1) ... [2021-12-22 14:57:34,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34" (1/1) ... [2021-12-22 14:57:34,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34" (1/1) ... [2021-12-22 14:57:34,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34" (1/1) ... [2021-12-22 14:57:34,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34" (1/1) ... [2021-12-22 14:57:34,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34" (1/1) ... [2021-12-22 14:57:34,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:57:34,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:57:34,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:57:34,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:57:34,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34" (1/1) ... [2021-12-22 14:57:34,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:57:34,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:57:34,837 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 14:57:34,851 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 14:57:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-22 14:57:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-22 14:57:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2021-12-22 14:57:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2021-12-22 14:57:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-12-22 14:57:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-22 14:57:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-22 14:57:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-22 14:57:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-22 14:57:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_compat_ioctl [2021-12-22 14:57:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_compat_ioctl [2021-12-22 14:57:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:57:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:57:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:57:34,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:57:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 14:57:34,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 14:57:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_read [2021-12-22 14:57:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_read [2021-12-22 14:57:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_compat_ioctl [2021-12-22 14:57:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_compat_ioctl [2021-12-22 14:57:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-22 14:57:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-22 14:57:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:57:34,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:57:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_release [2021-12-22 14:57:34,885 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_release [2021-12-22 14:57:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_open [2021-12-22 14:57:34,885 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_open [2021-12-22 14:57:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-22 14:57:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-22 14:57:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get [2021-12-22 14:57:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get [2021-12-22 14:57:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure __vfio_group_unset_container [2021-12-22 14:57:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __vfio_group_unset_container [2021-12-22 14:57:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_unl_ioctl [2021-12-22 14:57:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_unl_ioctl [2021-12-22 14:57:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:57:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:57:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:57:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:57:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_compat_ioctl [2021-12-22 14:57:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_compat_ioctl [2021-12-22 14:57:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure fdput [2021-12-22 14:57:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure fdput [2021-12-22 14:57:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_dev_viable [2021-12-22 14:57:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_dev_viable [2021-12-22 14:57:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-22 14:57:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-22 14:57:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_mmap [2021-12-22 14:57:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_mmap [2021-12-22 14:57:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:57:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:57:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put [2021-12-22 14:57:34,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put [2021-12-22 14:57:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_try_dissolve_container [2021-12-22 14:57:34,892 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_try_dissolve_container [2021-12-22 14:57:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_unlock_and_free [2021-12-22 14:57:34,892 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_unlock_and_free [2021-12-22 14:57:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_release [2021-12-22 14:57:34,893 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_release [2021-12-22 14:57:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:57:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:57:34,894 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:57:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_write [2021-12-22 14:57:34,894 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_write [2021-12-22 14:57:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-22 14:57:34,894 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-22 14:57:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:57:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_unl_ioctl [2021-12-22 14:57:34,895 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_unl_ioctl [2021-12-22 14:57:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-22 14:57:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 14:57:34,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 14:57:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-22 14:57:34,896 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-22 14:57:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-22 14:57:34,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-22 14:57:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-22 14:57:34,897 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-22 14:57:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:57:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:57:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_id [2021-12-22 14:57:34,897 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_id [2021-12-22 14:57:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_1 [2021-12-22 14:57:34,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_1 [2021-12-22 14:57:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-22 14:57:34,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-22 14:57:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-22 14:57:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-22 14:57:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2021-12-22 14:57:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2021-12-22 14:57:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-22 14:57:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-22 14:57:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:57:34,900 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:57:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:57:34,901 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:57:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:57:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_put [2021-12-22 14:57:34,901 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_put [2021-12-22 14:57:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2021-12-22 14:57:34,901 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2021-12-22 14:57:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-22 14:57:34,902 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-22 14:57:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:57:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_put [2021-12-22 14:57:34,902 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_put [2021-12-22 14:57:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-22 14:57:34,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-22 14:57:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put_mutex [2021-12-22 14:57:34,903 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put_mutex [2021-12-22 14:57:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:57:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put_external_user [2021-12-22 14:57:34,904 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put_external_user [2021-12-22 14:57:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2021-12-22 14:57:34,904 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2021-12-22 14:57:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:57:34,905 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:57:34,907 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_read [2021-12-22 14:57:34,908 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_read [2021-12-22 14:57:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_get [2021-12-22 14:57:34,908 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_get [2021-12-22 14:57:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2021-12-22 14:57:34,909 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2021-12-22 14:57:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:57:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_unl_ioctl [2021-12-22 14:57:34,911 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_unl_ioctl [2021-12-22 14:57:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-22 14:57:34,918 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-22 14:57:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:57:34,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:57:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-22 14:57:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-22 14:57:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 14:57:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 14:57:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-12-22 14:57:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-12-22 14:57:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:57:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 14:57:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 14:57:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_mmap [2021-12-22 14:57:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_mmap [2021-12-22 14:57:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-22 14:57:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-22 14:57:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:57:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-22 14:57:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-22 14:57:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:57:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:57:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:57:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2021-12-22 14:57:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2021-12-22 14:57:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2021-12-22 14:57:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2021-12-22 14:57:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_write [2021-12-22 14:57:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_write [2021-12-22 14:57:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_check_extension [2021-12-22 14:57:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_check_extension [2021-12-22 14:57:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_free_group_minor [2021-12-22 14:57:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_free_group_minor [2021-12-22 14:57:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-22 14:57:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-22 14:57:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-22 14:57:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-22 14:57:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-22 14:57:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-22 14:57:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_device [2021-12-22 14:57:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_device [2021-12-22 14:57:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 14:57:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 14:57:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-22 14:57:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-22 14:57:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_put [2021-12-22 14:57:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_put [2021-12-22 14:57:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:57:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:57:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-22 14:57:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-22 14:57:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:57:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 14:57:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 14:57:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_viable [2021-12-22 14:57:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_viable [2021-12-22 14:57:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_set_iommu [2021-12-22 14:57:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_set_iommu [2021-12-22 14:57:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_open [2021-12-22 14:57:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_open [2021-12-22 14:57:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_release [2021-12-22 14:57:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_release [2021-12-22 14:57:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:57:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:57:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 14:57:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 14:57:35,480 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:57:35,483 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:57:35,626 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:57:37,329 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:57:37,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:57:37,349 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:57:37,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:57:37 BoogieIcfgContainer [2021-12-22 14:57:37,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:57:37,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:57:37,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:57:37,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:57:37,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:57:32" (1/3) ... [2021-12-22 14:57:37,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71353e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:57:37, skipping insertion in model container [2021-12-22 14:57:37,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:57:34" (2/3) ... [2021-12-22 14:57:37,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71353e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:57:37, skipping insertion in model container [2021-12-22 14:57:37,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:57:37" (3/3) ... [2021-12-22 14:57:37,360 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2021-12-22 14:57:37,364 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:57:37,364 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:57:37,420 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:57:37,432 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 14:57:37,432 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:57:37,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 1149 states, 760 states have (on average 1.2881578947368422) internal successors, (979), 783 states have internal predecessors, (979), 300 states have call successors, (300), 88 states have call predecessors, (300), 87 states have return successors, (295), 293 states have call predecessors, (295), 295 states have call successors, (295) [2021-12-22 14:57:37,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-12-22 14:57:37,516 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:57:37,517 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:57:37,517 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:57:37,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:57:37,522 INFO L85 PathProgramCache]: Analyzing trace with hash -897254435, now seen corresponding path program 1 times [2021-12-22 14:57:37,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:57:37,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357290182] [2021-12-22 14:57:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:57:37,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:57:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:57:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:57:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:57:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:57:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:57:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:57:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:57:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:57:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:57:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:57:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 14:57:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 14:57:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-22 14:57:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-22 14:57:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:57:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 14:57:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-22 14:57:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 14:57:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:57:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-22 14:57:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-22 14:57:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-22 14:57:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-22 14:57:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-22 14:57:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:57:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-22 14:57:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-22 14:57:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-22 14:57:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-22 14:57:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-22 14:57:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-22 14:57:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-22 14:57:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2021-12-22 14:57:38,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:57:38,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357290182] [2021-12-22 14:57:38,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357290182] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:57:38,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:57:38,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:57:38,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238101947] [2021-12-22 14:57:38,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:57:38,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:57:38,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:57:38,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:57:38,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:57:38,969 INFO L87 Difference]: Start difference. First operand has 1149 states, 760 states have (on average 1.2881578947368422) internal successors, (979), 783 states have internal predecessors, (979), 300 states have call successors, (300), 88 states have call predecessors, (300), 87 states have return successors, (295), 293 states have call predecessors, (295), 295 states have call successors, (295) Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-22 14:57:44,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:57:44,333 INFO L93 Difference]: Finished difference Result 4045 states and 5977 transitions. [2021-12-22 14:57:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:57:44,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 321 [2021-12-22 14:57:44,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:57:44,393 INFO L225 Difference]: With dead ends: 4045 [2021-12-22 14:57:44,393 INFO L226 Difference]: Without dead ends: 2883 [2021-12-22 14:57:44,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:57:44,421 INFO L933 BasicCegarLoop]: 1533 mSDtfsCounter, 3727 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 2438 mSolverCounterSat, 2458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3889 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 4896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2458 IncrementalHoareTripleChecker+Valid, 2438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:57:44,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3889 Valid, 3665 Invalid, 4896 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2458 Valid, 2438 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-12-22 14:57:44,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-12-22 14:57:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2140. [2021-12-22 14:57:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 1429 states have (on average 1.2883135059482156) internal successors, (1841), 1459 states have internal predecessors, (1841), 541 states have call successors, (541), 170 states have call predecessors, (541), 169 states have return successors, (539), 535 states have call predecessors, (539), 539 states have call successors, (539) [2021-12-22 14:57:44,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2921 transitions. [2021-12-22 14:57:44,705 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2921 transitions. Word has length 321 [2021-12-22 14:57:44,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:57:44,709 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2921 transitions. [2021-12-22 14:57:44,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-22 14:57:44,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2921 transitions. [2021-12-22 14:57:44,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-12-22 14:57:44,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:57:44,724 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:57:44,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:57:44,725 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:57:44,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:57:44,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1710939226, now seen corresponding path program 1 times [2021-12-22 14:57:44,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:57:44,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629126389] [2021-12-22 14:57:44,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:57:44,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:57:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:57:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:57:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:57:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:57:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:57:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:57:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:57:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:57:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:57:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:57:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 14:57:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 14:57:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-22 14:57:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-22 14:57:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:57:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 14:57:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-22 14:57:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 14:57:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:57:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-22 14:57:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-22 14:57:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-22 14:57:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-22 14:57:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-22 14:57:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:57:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-22 14:57:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-22 14:57:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-22 14:57:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-22 14:57:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-22 14:57:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:57:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:45,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2021-12-22 14:57:45,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:57:45,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629126389] [2021-12-22 14:57:45,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629126389] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:57:45,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:57:45,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 14:57:45,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98066967] [2021-12-22 14:57:45,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:57:45,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 14:57:45,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:57:45,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 14:57:45,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:57:45,629 INFO L87 Difference]: Start difference. First operand 2140 states and 2921 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-22 14:57:49,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:57:49,830 INFO L93 Difference]: Finished difference Result 5616 states and 8135 transitions. [2021-12-22 14:57:49,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 14:57:49,831 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 352 [2021-12-22 14:57:49,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:57:49,858 INFO L225 Difference]: With dead ends: 5616 [2021-12-22 14:57:49,858 INFO L226 Difference]: Without dead ends: 3546 [2021-12-22 14:57:49,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-12-22 14:57:49,869 INFO L933 BasicCegarLoop]: 1286 mSDtfsCounter, 4255 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 2089 mSolverCounterSat, 3247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4387 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 5336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3247 IncrementalHoareTripleChecker+Valid, 2089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:57:49,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4387 Valid, 2841 Invalid, 5336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3247 Valid, 2089 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-22 14:57:49,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3546 states. [2021-12-22 14:57:49,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3546 to 2066. [2021-12-22 14:57:50,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2066 states, 1373 states have (on average 1.2738528769118718) internal successors, (1749), 1403 states have internal predecessors, (1749), 523 states have call successors, (523), 170 states have call predecessors, (523), 169 states have return successors, (521), 517 states have call predecessors, (521), 521 states have call successors, (521) [2021-12-22 14:57:50,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2793 transitions. [2021-12-22 14:57:50,016 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2793 transitions. Word has length 352 [2021-12-22 14:57:50,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:57:50,019 INFO L470 AbstractCegarLoop]: Abstraction has 2066 states and 2793 transitions. [2021-12-22 14:57:50,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-22 14:57:50,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2793 transitions. [2021-12-22 14:57:50,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-12-22 14:57:50,029 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:57:50,029 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:57:50,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:57:50,030 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:57:50,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:57:50,031 INFO L85 PathProgramCache]: Analyzing trace with hash 137240625, now seen corresponding path program 1 times [2021-12-22 14:57:50,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:57:50,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174678378] [2021-12-22 14:57:50,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:57:50,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:57:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:57:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:57:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:57:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:57:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:57:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:57:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:57:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:57:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:57:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:57:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 14:57:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 14:57:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-22 14:57:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-22 14:57:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:57:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 14:57:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-22 14:57:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 14:57:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:57:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-22 14:57:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-22 14:57:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-22 14:57:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-22 14:57:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-22 14:57:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:57:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-22 14:57:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-22 14:57:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-22 14:57:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-22 14:57:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-22 14:57:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-22 14:57:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-22 14:57:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:50,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2021-12-22 14:57:50,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:57:50,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174678378] [2021-12-22 14:57:50,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174678378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:57:50,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:57:50,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 14:57:50,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733612147] [2021-12-22 14:57:50,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:57:50,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 14:57:50,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:57:50,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 14:57:50,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:57:50,728 INFO L87 Difference]: Start difference. First operand 2066 states and 2793 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-22 14:57:53,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:57:53,992 INFO L93 Difference]: Finished difference Result 5260 states and 7525 transitions. [2021-12-22 14:57:53,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:57:53,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 346 [2021-12-22 14:57:53,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:57:54,015 INFO L225 Difference]: With dead ends: 5260 [2021-12-22 14:57:54,016 INFO L226 Difference]: Without dead ends: 3264 [2021-12-22 14:57:54,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-12-22 14:57:54,030 INFO L933 BasicCegarLoop]: 1284 mSDtfsCounter, 4091 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 2915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4236 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 4317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2915 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:57:54,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4236 Valid, 2499 Invalid, 4317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2915 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-22 14:57:54,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states. [2021-12-22 14:57:54,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 2028. [2021-12-22 14:57:54,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1343 states have (on average 1.265078183172003) internal successors, (1699), 1373 states have internal predecessors, (1699), 515 states have call successors, (515), 170 states have call predecessors, (515), 169 states have return successors, (513), 509 states have call predecessors, (513), 513 states have call successors, (513) [2021-12-22 14:57:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2727 transitions. [2021-12-22 14:57:54,182 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2727 transitions. Word has length 346 [2021-12-22 14:57:54,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:57:54,184 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2727 transitions. [2021-12-22 14:57:54,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-22 14:57:54,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2727 transitions. [2021-12-22 14:57:54,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-12-22 14:57:54,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:57:54,194 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:57:54,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:57:54,195 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:57:54,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:57:54,196 INFO L85 PathProgramCache]: Analyzing trace with hash 999442607, now seen corresponding path program 1 times [2021-12-22 14:57:54,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:57:54,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448368009] [2021-12-22 14:57:54,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:57:54,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:57:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:57:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:57:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:57:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:57:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:57:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:57:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:57:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:57:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:57:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:57:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 14:57:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 14:57:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-22 14:57:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-22 14:57:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:57:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 14:57:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-22 14:57:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 14:57:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:57:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-22 14:57:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-22 14:57:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-22 14:57:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-22 14:57:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-22 14:57:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:57:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-22 14:57:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-22 14:57:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-22 14:57:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-22 14:57:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-22 14:57:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-22 14:57:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:57:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:54,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1530 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2021-12-22 14:57:54,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:57:54,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448368009] [2021-12-22 14:57:54,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448368009] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:57:54,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:57:54,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:57:54,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874680266] [2021-12-22 14:57:54,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:57:54,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:57:54,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:57:54,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:57:54,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:57:54,886 INFO L87 Difference]: Start difference. First operand 2028 states and 2727 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-12-22 14:57:57,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:57:57,681 INFO L93 Difference]: Finished difference Result 2778 states and 3916 transitions. [2021-12-22 14:57:57,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 14:57:57,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 348 [2021-12-22 14:57:57,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:57:57,701 INFO L225 Difference]: With dead ends: 2778 [2021-12-22 14:57:57,702 INFO L226 Difference]: Without dead ends: 2773 [2021-12-22 14:57:57,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-22 14:57:57,705 INFO L933 BasicCegarLoop]: 1288 mSDtfsCounter, 3239 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 2028 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3356 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2028 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:57:57,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3356 Valid, 1856 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2028 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-22 14:57:57,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2021-12-22 14:57:57,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2028. [2021-12-22 14:57:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1343 states have (on average 1.2643335815338794) internal successors, (1698), 1373 states have internal predecessors, (1698), 515 states have call successors, (515), 170 states have call predecessors, (515), 169 states have return successors, (513), 509 states have call predecessors, (513), 513 states have call successors, (513) [2021-12-22 14:57:57,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2726 transitions. [2021-12-22 14:57:57,829 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2726 transitions. Word has length 348 [2021-12-22 14:57:57,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:57:57,830 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2726 transitions. [2021-12-22 14:57:57,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-12-22 14:57:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2726 transitions. [2021-12-22 14:57:57,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-12-22 14:57:57,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:57:57,837 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:57:57,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:57:57,838 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:57:57,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:57:57,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1056700909, now seen corresponding path program 1 times [2021-12-22 14:57:57,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:57:57,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607780878] [2021-12-22 14:57:57,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:57:57,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:57:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:57:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:57:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:57:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:57:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:57:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:57:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:57:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:57:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:57:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:57:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 14:57:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 14:57:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-22 14:57:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-22 14:57:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:57:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 14:57:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-22 14:57:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 14:57:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:57:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-22 14:57:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-22 14:57:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-22 14:57:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-22 14:57:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-22 14:57:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:57:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-22 14:57:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-22 14:57:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-22 14:57:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-22 14:57:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-22 14:57:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-22 14:57:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:57:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:57:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:57:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:57:58,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1530 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2021-12-22 14:57:58,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:57:58,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607780878] [2021-12-22 14:57:58,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607780878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:57:58,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:57:58,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:57:58,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379644202] [2021-12-22 14:57:58,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:57:58,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:57:58,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:57:58,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:57:58,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:57:58,611 INFO L87 Difference]: Start difference. First operand 2028 states and 2726 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-22 14:58:04,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:58:04,422 INFO L93 Difference]: Finished difference Result 7417 states and 10635 transitions. [2021-12-22 14:58:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:58:04,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 348 [2021-12-22 14:58:04,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:58:04,462 INFO L225 Difference]: With dead ends: 7417 [2021-12-22 14:58:04,463 INFO L226 Difference]: Without dead ends: 5429 [2021-12-22 14:58:04,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-22 14:58:04,478 INFO L933 BasicCegarLoop]: 1594 mSDtfsCounter, 4424 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 3160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4548 SdHoareTripleChecker+Valid, 3855 SdHoareTripleChecker+Invalid, 6198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3160 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:58:04,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4548 Valid, 3855 Invalid, 6198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3160 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-22 14:58:04,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2021-12-22 14:58:04,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 3949. [2021-12-22 14:58:04,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3949 states, 2623 states have (on average 1.2683949675943575) internal successors, (3327), 2681 states have internal predecessors, (3327), 993 states have call successors, (993), 333 states have call predecessors, (993), 332 states have return successors, (1025), 983 states have call predecessors, (1025), 991 states have call successors, (1025) [2021-12-22 14:58:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 5345 transitions. [2021-12-22 14:58:04,824 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 5345 transitions. Word has length 348 [2021-12-22 14:58:04,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:58:04,825 INFO L470 AbstractCegarLoop]: Abstraction has 3949 states and 5345 transitions. [2021-12-22 14:58:04,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-22 14:58:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 5345 transitions. [2021-12-22 14:58:04,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2021-12-22 14:58:04,834 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:58:04,835 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:58:04,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:58:04,835 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:58:04,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:58:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash -138492121, now seen corresponding path program 1 times [2021-12-22 14:58:04,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:58:04,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531665979] [2021-12-22 14:58:04,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:58:04,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:58:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:58:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:58:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:58:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:58:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:58:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:58:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:58:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:58:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:58:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:58:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 14:58:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 14:58:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-22 14:58:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-22 14:58:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:58:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 14:58:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-22 14:58:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 14:58:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:58:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-22 14:58:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-22 14:58:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-22 14:58:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-22 14:58:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-22 14:58:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:58:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-22 14:58:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-22 14:58:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-22 14:58:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-22 14:58:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-12-22 14:58:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-22 14:58:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:58:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:05,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2021-12-22 14:58:05,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:58:05,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531665979] [2021-12-22 14:58:05,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531665979] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:58:05,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182194811] [2021-12-22 14:58:05,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:58:05,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:58:05,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:58:05,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:58:05,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 14:58:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:06,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 3980 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 14:58:06,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:58:07,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1239 trivial. 0 not checked. [2021-12-22 14:58:07,047 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:58:07,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182194811] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:58:07,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:58:07,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-12-22 14:58:07,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17931267] [2021-12-22 14:58:07,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:58:07,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:58:07,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:58:07,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:58:07,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:58:07,050 INFO L87 Difference]: Start difference. First operand 3949 states and 5345 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-22 14:58:07,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:58:07,385 INFO L93 Difference]: Finished difference Result 8032 states and 10902 transitions. [2021-12-22 14:58:07,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:58:07,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 364 [2021-12-22 14:58:07,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:58:07,416 INFO L225 Difference]: With dead ends: 8032 [2021-12-22 14:58:07,416 INFO L226 Difference]: Without dead ends: 4153 [2021-12-22 14:58:07,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:58:07,437 INFO L933 BasicCegarLoop]: 1478 mSDtfsCounter, 202 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:58:07,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 2803 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:58:07,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2021-12-22 14:58:07,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 4139. [2021-12-22 14:58:07,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 2793 states have (on average 1.2753311851056213) internal successors, (3562), 2855 states have internal predecessors, (3562), 1005 states have call successors, (1005), 341 states have call predecessors, (1005), 340 states have return successors, (1037), 992 states have call predecessors, (1037), 1003 states have call successors, (1037) [2021-12-22 14:58:07,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 5604 transitions. [2021-12-22 14:58:07,698 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 5604 transitions. Word has length 364 [2021-12-22 14:58:07,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:58:07,700 INFO L470 AbstractCegarLoop]: Abstraction has 4139 states and 5604 transitions. [2021-12-22 14:58:07,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-22 14:58:07,701 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 5604 transitions. [2021-12-22 14:58:07,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-12-22 14:58:07,714 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:58:07,716 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:58:07,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 14:58:07,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-22 14:58:07,939 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:58:07,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:58:07,939 INFO L85 PathProgramCache]: Analyzing trace with hash -297851237, now seen corresponding path program 1 times [2021-12-22 14:58:07,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:58:07,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090140040] [2021-12-22 14:58:07,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:58:07,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:58:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:58:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:58:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:58:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:58:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:58:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:58:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:58:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:58:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:58:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:58:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 14:58:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 14:58:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-22 14:58:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-22 14:58:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:58:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 14:58:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-22 14:58:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 14:58:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:58:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-22 14:58:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-22 14:58:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-22 14:58:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-22 14:58:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-22 14:58:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:58:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-22 14:58:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-22 14:58:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-22 14:58:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-22 14:58:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-22 14:58:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-22 14:58:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:58:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-12-22 14:58:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-22 14:58:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-12-22 14:58:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-22 14:58:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-12-22 14:58:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:58:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1533 trivial. 0 not checked. [2021-12-22 14:58:08,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:58:08,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090140040] [2021-12-22 14:58:08,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090140040] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:58:08,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543289380] [2021-12-22 14:58:08,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:58:08,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:58:08,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:58:08,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:58:08,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 14:58:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:09,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 4438 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 14:58:09,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:58:10,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 1259 trivial. 0 not checked. [2021-12-22 14:58:10,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:58:10,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543289380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:58:10,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:58:10,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-22 14:58:10,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791471437] [2021-12-22 14:58:10,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:58:10,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:58:10,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:58:10,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:58:10,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-22 14:58:10,548 INFO L87 Difference]: Start difference. First operand 4139 states and 5604 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-12-22 14:58:10,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:58:10,925 INFO L93 Difference]: Finished difference Result 10520 states and 14156 transitions. [2021-12-22 14:58:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:58:10,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 433 [2021-12-22 14:58:10,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:58:10,970 INFO L225 Difference]: With dead ends: 10520 [2021-12-22 14:58:10,971 INFO L226 Difference]: Without dead ends: 6455 [2021-12-22 14:58:10,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-22 14:58:10,993 INFO L933 BasicCegarLoop]: 1619 mSDtfsCounter, 912 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:58:10,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [912 Valid, 2868 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:58:11,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6455 states. [2021-12-22 14:58:11,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6455 to 6442. [2021-12-22 14:58:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6442 states, 4300 states have (on average 1.27) internal successors, (5461), 4398 states have internal predecessors, (5461), 1561 states have call successors, (1561), 581 states have call predecessors, (1561), 580 states have return successors, (1593), 1537 states have call predecessors, (1593), 1559 states have call successors, (1593) [2021-12-22 14:58:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6442 states to 6442 states and 8615 transitions. [2021-12-22 14:58:11,410 INFO L78 Accepts]: Start accepts. Automaton has 6442 states and 8615 transitions. Word has length 433 [2021-12-22 14:58:11,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:58:11,410 INFO L470 AbstractCegarLoop]: Abstraction has 6442 states and 8615 transitions. [2021-12-22 14:58:11,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-12-22 14:58:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 6442 states and 8615 transitions. [2021-12-22 14:58:11,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2021-12-22 14:58:11,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:58:11,429 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:58:11,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 14:58:11,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-22 14:58:11,644 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:58:11,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:58:11,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1010392839, now seen corresponding path program 1 times [2021-12-22 14:58:11,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:58:11,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131953230] [2021-12-22 14:58:11,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:58:11,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:58:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:58:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:58:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:58:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:58:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:58:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:11,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:58:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:58:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:58:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:58:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:58:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 14:58:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 14:58:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-22 14:58:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-22 14:58:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:58:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 14:58:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-22 14:58:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 14:58:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:58:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-22 14:58:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-22 14:58:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-22 14:58:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-22 14:58:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-22 14:58:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:58:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-22 14:58:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-22 14:58:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-22 14:58:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-22 14:58:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-22 14:58:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-22 14:58:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:58:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:58:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-22 14:58:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-12-22 14:58:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-12-22 14:58:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-12-22 14:58:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-22 14:58:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-22 14:58:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-12-22 14:58:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:58:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:58:12,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2021-12-22 14:58:12,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:58:12,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131953230] [2021-12-22 14:58:12,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131953230] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:58:12,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:58:12,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 14:58:12,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515260179] [2021-12-22 14:58:12,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:58:12,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 14:58:12,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:58:12,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 14:58:12,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:58:12,359 INFO L87 Difference]: Start difference. First operand 6442 states and 8615 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 8 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-12-22 14:58:17,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:58:17,515 INFO L93 Difference]: Finished difference Result 16078 states and 23275 transitions. [2021-12-22 14:58:17,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:58:17,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 8 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 422 [2021-12-22 14:58:17,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:58:17,637 INFO L225 Difference]: With dead ends: 16078 [2021-12-22 14:58:17,637 INFO L226 Difference]: Without dead ends: 9710 [2021-12-22 14:58:17,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-12-22 14:58:17,665 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 3089 mSDsluCounter, 2380 mSDsCounter, 0 mSdLazyCounter, 2638 mSolverCounterSat, 2675 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3181 SdHoareTripleChecker+Valid, 3709 SdHoareTripleChecker+Invalid, 5313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2675 IncrementalHoareTripleChecker+Valid, 2638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-22 14:58:17,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3181 Valid, 3709 Invalid, 5313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2675 Valid, 2638 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-22 14:58:17,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9710 states.