./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro --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 7e3ac2fcc053a51503ae18580c98d5f9812f019f35610d9038863980fd24a66a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:57:39,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:57:39,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:57:39,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:57:39,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:57:39,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:57:39,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:57:39,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:57:39,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:57:39,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:57:39,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:57:39,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:57:39,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:57:39,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:57:39,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:57:39,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:57:39,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:57:39,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:57:39,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:57:39,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:57:39,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:57:39,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:57:39,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:57:39,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:57:39,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:57:39,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:57:39,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:57:39,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:57:39,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:57:39,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:57:39,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:57:39,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:57:39,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:57:39,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:57:39,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:57:39,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:57:39,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:57:39,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:57:39,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:57:39,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:57:39,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:57:39,175 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 19:57:39,211 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:57:39,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:57:39,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:57:39,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:57:39,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:57:39,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:57:39,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:57:39,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:57:39,218 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:57:39,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:57:39,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:57:39,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:57:39,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:57:39,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:57:39,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:57:39,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:57:39,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:57:39,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:57:39,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:57:39,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:57:39,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:57:39,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:57:39,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:57:39,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:57:39,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:57:39,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:57:39,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:57:39,224 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:57:39,224 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:57:39,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:57:39,224 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3ac2fcc053a51503ae18580c98d5f9812f019f35610d9038863980fd24a66a [2022-11-18 19:57:39,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:57:39,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:57:39,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:57:39,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:57:39,585 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:57:39,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2022-11-18 19:57:39,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/data/8c148efbf/1491e82ddae94f50be284df0382537b6/FLAG2cd743293 [2022-11-18 19:57:40,909 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:57:40,910 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2022-11-18 19:57:40,971 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/data/8c148efbf/1491e82ddae94f50be284df0382537b6/FLAG2cd743293 [2022-11-18 19:57:41,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/data/8c148efbf/1491e82ddae94f50be284df0382537b6 [2022-11-18 19:57:41,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:57:41,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:57:41,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:57:41,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:57:41,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:57:41,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:57:41" (1/1) ... [2022-11-18 19:57:41,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4a5ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:41, skipping insertion in model container [2022-11-18 19:57:41,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:57:41" (1/1) ... [2022-11-18 19:57:41,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:57:41,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:57:46,008 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i[423705,423718] [2022-11-18 19:57:46,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:57:46,477 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:57:47,096 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i[423705,423718] [2022-11-18 19:57:47,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:57:47,620 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:57:47,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47 WrapperNode [2022-11-18 19:57:47,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:57:47,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:57:47,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:57:47,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:57:47,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (1/1) ... [2022-11-18 19:57:47,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (1/1) ... [2022-11-18 19:57:48,204 INFO L138 Inliner]: procedures = 649, calls = 4702, calls flagged for inlining = 324, calls inlined = 315, statements flattened = 12139 [2022-11-18 19:57:48,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:57:48,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:57:48,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:57:48,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:57:48,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (1/1) ... [2022-11-18 19:57:48,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (1/1) ... [2022-11-18 19:57:48,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (1/1) ... [2022-11-18 19:57:48,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (1/1) ... [2022-11-18 19:57:48,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (1/1) ... [2022-11-18 19:57:48,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (1/1) ... [2022-11-18 19:57:48,744 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (1/1) ... [2022-11-18 19:57:48,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (1/1) ... [2022-11-18 19:57:48,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:57:48,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:57:48,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:57:48,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:57:48,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (1/1) ... [2022-11-18 19:57:48,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:57:48,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:57:48,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:57:48,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1301066d-c02e-4d39-ad63-d6bab81c360f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:57:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2022-11-18 19:57:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2022-11-18 19:57:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure wait_nack [2022-11-18 19:57:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_nack [2022-11-18 19:57:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure wait_ack [2022-11-18 19:57:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_ack [2022-11-18 19:57:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 19:57:49,013 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 19:57:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure clear_cmd_trigger [2022-11-18 19:57:49,013 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_cmd_trigger [2022-11-18 19:57:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 19:57:49,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 19:57:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure ast_init_dvo [2022-11-18 19:57:49,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_init_dvo [2022-11-18 19:57:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_freeze [2022-11-18 19:57:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_freeze [2022-11-18 19:57:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2022-11-18 19:57:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2022-11-18 19:57:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-18 19:57:49,016 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-18 19:57:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 19:57:49,016 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 19:57:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock [2022-11-18 19:57:49,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock [2022-11-18 19:57:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_base_of_ww_mutex [2022-11-18 19:57:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_base_of_ww_mutex [2022-11-18 19:57:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_dpms [2022-11-18 19:57:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_dpms [2022-11-18 19:57:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_dp501_video_output [2022-11-18 19:57:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_dp501_video_output [2022-11-18 19:57:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_pin [2022-11-18 19:57:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_pin [2022-11-18 19:57:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2022-11-18 19:57:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2022-11-18 19:57:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure ast_read32 [2022-11-18 19:57:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_read32 [2022-11-18 19:57:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-18 19:57:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-18 19:57:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 19:57:49,020 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 19:57:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_dll2 [2022-11-18 19:57:49,020 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_dll2 [2022-11-18 19:57:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_fixup [2022-11-18 19:57:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_fixup [2022-11-18 19:57:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:57:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_thaw [2022-11-18 19:57:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_thaw [2022-11-18 19:57:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure ast_dirty_update [2022-11-18 19:57:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_dirty_update [2022-11-18 19:57:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure ast_enable_vga [2022-11-18 19:57:49,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_enable_vga [2022-11-18 19:57:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 19:57:49,024 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 19:57:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg_mask [2022-11-18 19:57:49,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg_mask [2022-11-18 19:57:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_fini [2022-11-18 19:57:49,026 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_fini [2022-11-18 19:57:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2022-11-18 19:57:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2022-11-18 19:57:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_del_sub_from_lru [2022-11-18 19:57:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_del_sub_from_lru [2022-11-18 19:57:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_placement [2022-11-18 19:57:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_placement [2022-11-18 19:57:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_load_lut [2022-11-18 19:57:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_load_lut [2022-11-18 19:57:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 19:57:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mindwm [2022-11-18 19:57:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mindwm [2022-11-18 19:57:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2022-11-18 19:57:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2022-11-18 19:57:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2022-11-18 19:57:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2022-11-18 19:57:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 19:57:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2022-11-18 19:57:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2022-11-18 19:57:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure send_ack [2022-11-18 19:57:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure send_ack [2022-11-18 19:57:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_disable [2022-11-18 19:57:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_disable [2022-11-18 19:57:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:57:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set_base [2022-11-18 19:57:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set_base [2022-11-18 19:57:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-18 19:57:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-18 19:57:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_fw_base [2022-11-18 19:57:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fw_base [2022-11-18 19:57:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_read8 [2022-11-18 19:57:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_read8 [2022-11-18 19:57:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-18 19:57:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-18 19:57:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:57:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure ast_post_gpu [2022-11-18 19:57:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_post_gpu [2022-11-18 19:57:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:57:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_gamma_set [2022-11-18 19:57:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_gamma_set [2022-11-18 19:57:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2022-11-18 19:57:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2022-11-18 19:57:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-18 19:57:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-18 19:57:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 19:57:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 19:57:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure ast_fbdev_set_suspend [2022-11-18 19:57:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_fbdev_set_suspend [2022-11-18 19:57:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:57:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 19:57:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure ast_framebuffer_init [2022-11-18 19:57:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_framebuffer_init [2022-11-18 19:57:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_set [2022-11-18 19:57:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_set [2022-11-18 19:57:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure ast_open_key [2022-11-18 19:57:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_open_key [2022-11-18 19:57:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2022-11-18 19:57:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2022-11-18 19:57:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_burst2 [2022-11-18 19:57:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_burst2 [2022-11-18 19:57:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 19:57:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 19:57:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_unreserve [2022-11-18 19:57:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_unreserve [2022-11-18 19:57:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-18 19:57:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-18 19:57:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:57:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:57:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 19:57:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 19:57:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 19:57:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 19:57:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure send_nack [2022-11-18 19:57:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure send_nack [2022-11-18 19:57:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure ast_enable_mmio [2022-11-18 19:57:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_enable_mmio [2022-11-18 19:57:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_detect [2022-11-18 19:57:49,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_detect [2022-11-18 19:57:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-18 19:57:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_prepare [2022-11-18 19:57:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_prepare [2022-11-18 19:57:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure ast_get_index_reg_mask [2022-11-18 19:57:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_get_index_reg_mask [2022-11-18 19:57:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_base_of_ww_mutex [2022-11-18 19:57:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_base_of_ww_mutex [2022-11-18 19:57:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-11-18 19:57:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-11-18 19:57:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_create [2022-11-18 19:57:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_create [2022-11-18 19:57:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_prepare [2022-11-18 19:57:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_prepare [2022-11-18 19:57:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 19:57:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 19:57:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 19:57:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 19:57:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_reserve [2022-11-18 19:57:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_reserve [2022-11-18 19:57:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-18 19:57:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-18 19:57:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 19:57:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 19:57:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2022-11-18 19:57:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2022-11-18 19:57:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mmap [2022-11-18 19:57:49,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mmap [2022-11-18 19:57:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-18 19:57:49,049 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-18 19:57:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-18 19:57:49,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-18 19:57:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:57:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2022-11-18 19:57:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_free [2022-11-18 19:57:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_mutex_54 [2022-11-18 19:57:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_mutex_54 [2022-11-18 19:57:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2022-11-18 19:57:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2022-11-18 19:57:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2022-11-18 19:57:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:57:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock_interruptible [2022-11-18 19:57:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock_interruptible [2022-11-18 19:57:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-18 19:57:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-18 19:57:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_destroy [2022-11-18 19:57:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_destroy [2022-11-18 19:57:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_commit [2022-11-18 19:57:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_commit [2022-11-18 19:57:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 19:57:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_resume [2022-11-18 19:57:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_resume [2022-11-18 19:57:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-18 19:57:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-18 19:57:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_write8 [2022-11-18 19:57:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_write8 [2022-11-18 19:57:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2022-11-18 19:57:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2022-11-18 19:57:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_destroy [2022-11-18 19:57:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_destroy [2022-11-18 19:57:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_gpu_offset [2022-11-18 19:57:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_gpu_offset [2022-11-18 19:57:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure ast_write32 [2022-11-18 19:57:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_write32 [2022-11-18 19:57:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_reset [2022-11-18 19:57:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_reset [2022-11-18 19:57:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_free_object [2022-11-18 19:57:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_free_object [2022-11-18 19:57:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked___0 [2022-11-18 19:57:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked___0 [2022-11-18 19:57:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_backend_destroy [2022-11-18 19:57:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_backend_destroy [2022-11-18 19:57:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pci_remove [2022-11-18 19:57:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pci_remove [2022-11-18 19:57:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2022-11-18 19:57:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2022-11-18 19:57:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set [2022-11-18 19:57:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set [2022-11-18 19:57:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_single2 [2022-11-18 19:57:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_single2 [2022-11-18 19:57:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo [2022-11-18 19:57:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo [2022-11-18 19:57:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 19:57:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 19:57:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:57:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure ast_moutdwm [2022-11-18 19:57:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_moutdwm [2022-11-18 19:57:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg [2022-11-18 19:57:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg [2022-11-18 19:57:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure cbrdlli_ast2150 [2022-11-18 19:57:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure cbrdlli_ast2150 [2022-11-18 19:57:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 19:57:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 19:57:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2022-11-18 19:57:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2022-11-18 19:57:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-18 19:57:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-18 19:57:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_commit [2022-11-18 19:57:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_commit [2022-11-18 19:57:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-18 19:57:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-18 19:57:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2022-11-18 19:57:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2022-11-18 19:57:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2022-11-18 19:57:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2022-11-18 19:57:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_move [2022-11-18 19:57:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_move [2022-11-18 19:57:49,065 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2022-11-18 19:57:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2022-11-18 19:57:49,065 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2022-11-18 19:57:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2022-11-18 19:57:49,066 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_update_edid_property [2022-11-18 19:57:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_update_edid_property [2022-11-18 19:57:49,066 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-18 19:57:49,069 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-18 19:57:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_tt_unpopulate [2022-11-18 19:57:49,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_tt_unpopulate [2022-11-18 19:57:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2022-11-18 19:57:49,070 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2022-11-18 19:57:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_destroy [2022-11-18 19:57:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_destroy [2022-11-18 19:57:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:57:50,389 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:57:50,397 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:57:50,682 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 19:58:08,689 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:58:08,731 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:58:08,731 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:58:08,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:58:08 BoogieIcfgContainer [2022-11-18 19:58:08,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:58:08,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:58:08,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:58:08,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:58:08,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:57:41" (1/3) ... [2022-11-18 19:58:08,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e42c3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:58:08, skipping insertion in model container [2022-11-18 19:58:08,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:47" (2/3) ... [2022-11-18 19:58:08,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e42c3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:58:08, skipping insertion in model container [2022-11-18 19:58:08,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:58:08" (3/3) ... [2022-11-18 19:58:08,751 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2022-11-18 19:58:08,770 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:58:08,771 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:58:08,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:58:08,918 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3ff2527d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:58:08,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:58:08,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 3569 states, 2559 states have (on average 1.4490035169988276) internal successors, (3708), 2650 states have internal predecessors, (3708), 891 states have call successors, (891), 118 states have call predecessors, (891), 117 states have return successors, (873), 850 states have call predecessors, (873), 873 states have call successors, (873) [2022-11-18 19:58:08,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-18 19:58:08,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:58:08,951 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:58:08,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:58:08,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:08,957 INFO L85 PathProgramCache]: Analyzing trace with hash 935157621, now seen corresponding path program 1 times [2022-11-18 19:58:08,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:08,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175492798] [2022-11-18 19:58:08,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:08,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:09,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:58:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:09,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:58:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 19:58:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:58:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 19:58:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:58:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 19:58:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 19:58:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 19:58:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 19:58:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 19:58:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 19:58:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:58:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 19:58:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 19:58:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 19:58:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 19:58:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:10,768 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-18 19:58:10,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:10,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175492798] [2022-11-18 19:58:10,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175492798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:10,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:10,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:58:10,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421420374] [2022-11-18 19:58:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:10,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:58:10,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:10,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:58:10,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:58:10,830 INFO L87 Difference]: Start difference. First operand has 3569 states, 2559 states have (on average 1.4490035169988276) internal successors, (3708), 2650 states have internal predecessors, (3708), 891 states have call successors, (891), 118 states have call predecessors, (891), 117 states have return successors, (873), 850 states have call predecessors, (873), 873 states have call successors, (873) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 19:58:16,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:58:24,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:58:26,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:58:31,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:58:31,802 INFO L93 Difference]: Finished difference Result 7435 states and 11623 transitions. [2022-11-18 19:58:31,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:58:31,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 218 [2022-11-18 19:58:31,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:58:31,874 INFO L225 Difference]: With dead ends: 7435 [2022-11-18 19:58:31,874 INFO L226 Difference]: Without dead ends: 3845 [2022-11-18 19:58:31,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:58:31,905 INFO L413 NwaCegarLoop]: 4484 mSDtfsCounter, 2758 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 3359 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2827 SdHoareTripleChecker+Valid, 7262 SdHoareTripleChecker+Invalid, 5905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3359 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:58:31,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2827 Valid, 7262 Invalid, 5905 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3359 Valid, 2544 Invalid, 2 Unknown, 0 Unchecked, 20.1s Time] [2022-11-18 19:58:31,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3845 states. [2022-11-18 19:58:32,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3845 to 3543. [2022-11-18 19:58:32,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3543 states, 2553 states have (on average 1.4336075205640424) internal successors, (3660), 2624 states have internal predecessors, (3660), 873 states have call successors, (873), 117 states have call predecessors, (873), 116 states have return successors, (861), 838 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 19:58:32,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3543 states to 3543 states and 5394 transitions. [2022-11-18 19:58:32,258 INFO L78 Accepts]: Start accepts. Automaton has 3543 states and 5394 transitions. Word has length 218 [2022-11-18 19:58:32,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:58:32,258 INFO L495 AbstractCegarLoop]: Abstraction has 3543 states and 5394 transitions. [2022-11-18 19:58:32,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 19:58:32,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3543 states and 5394 transitions. [2022-11-18 19:58:32,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-18 19:58:32,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:58:32,274 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:58:32,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:58:32,274 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:58:32,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:32,275 INFO L85 PathProgramCache]: Analyzing trace with hash -947931129, now seen corresponding path program 1 times [2022-11-18 19:58:32,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:32,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370219552] [2022-11-18 19:58:32,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:32,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:58:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:58:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 19:58:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:58:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 19:58:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:58:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 19:58:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 19:58:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 19:58:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:58:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:58:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 19:58:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 19:58:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 19:58:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:58:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 19:58:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 19:58:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 19:58:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 19:58:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:33,837 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-18 19:58:33,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:33,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370219552] [2022-11-18 19:58:33,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370219552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:33,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:33,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:58:33,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763653737] [2022-11-18 19:58:33,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:33,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:58:33,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:33,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:58:33,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:58:33,847 INFO L87 Difference]: Start difference. First operand 3543 states and 5394 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-18 19:58:40,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:58:50,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:58:57,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:58:59,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:59:04,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:59:04,919 INFO L93 Difference]: Finished difference Result 11082 states and 17043 transitions. [2022-11-18 19:59:04,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:59:04,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 218 [2022-11-18 19:59:04,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:59:04,976 INFO L225 Difference]: With dead ends: 11082 [2022-11-18 19:59:04,977 INFO L226 Difference]: Without dead ends: 7576 [2022-11-18 19:59:04,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:59:04,997 INFO L413 NwaCegarLoop]: 5102 mSDtfsCounter, 9931 mSDsluCounter, 6644 mSDsCounter, 0 mSdLazyCounter, 5327 mSolverCounterSat, 7051 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10600 SdHoareTripleChecker+Valid, 11746 SdHoareTripleChecker+Invalid, 12381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7051 IncrementalHoareTripleChecker+Valid, 5327 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:59:05,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10600 Valid, 11746 Invalid, 12381 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7051 Valid, 5327 Invalid, 3 Unknown, 0 Unchecked, 30.3s Time] [2022-11-18 19:59:05,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2022-11-18 19:59:05,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 6965. [2022-11-18 19:59:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 5036 states have (on average 1.437251787132645) internal successors, (7238), 5167 states have internal predecessors, (7238), 1696 states have call successors, (1696), 233 states have call predecessors, (1696), 232 states have return successors, (1684), 1638 states have call predecessors, (1684), 1684 states have call successors, (1684) [2022-11-18 19:59:05,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10618 transitions. [2022-11-18 19:59:05,479 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10618 transitions. Word has length 218 [2022-11-18 19:59:05,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:59:05,482 INFO L495 AbstractCegarLoop]: Abstraction has 6965 states and 10618 transitions. [2022-11-18 19:59:05,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-18 19:59:05,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10618 transitions. [2022-11-18 19:59:05,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-18 19:59:05,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:59:05,495 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:59:05,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:59:05,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:59:05,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:05,496 INFO L85 PathProgramCache]: Analyzing trace with hash 459690371, now seen corresponding path program 1 times [2022-11-18 19:59:05,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:05,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574071454] [2022-11-18 19:59:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:05,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:59:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:59:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:59:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:59:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:59:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:59:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 19:59:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:59:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:59:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:59:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:59:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:59:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 19:59:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:59:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:59:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:59:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:59:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:59:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 19:59:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:59:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:59:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 19:59:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:59:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:59:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 19:59:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:59:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:59:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 19:59:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 19:59:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 19:59:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:59:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 19:59:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 19:59:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 19:59:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 19:59:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:06,650 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-18 19:59:06,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:06,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574071454] [2022-11-18 19:59:06,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574071454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:06,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:06,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:59:06,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88516487] [2022-11-18 19:59:06,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:06,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:59:06,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:06,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:59:06,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:59:06,657 INFO L87 Difference]: Start difference. First operand 6965 states and 10618 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-18 19:59:12,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:59:14,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:59:16,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:59:18,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:59:38,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:59:45,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:59:47,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:59:55,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:00:03,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:00:03,863 INFO L93 Difference]: Finished difference Result 21112 states and 32459 transitions. [2022-11-18 20:00:03,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:00:03,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 222 [2022-11-18 20:00:03,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:00:03,958 INFO L225 Difference]: With dead ends: 21112 [2022-11-18 20:00:03,958 INFO L226 Difference]: Without dead ends: 14184 [2022-11-18 20:00:03,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:00:03,994 INFO L413 NwaCegarLoop]: 5058 mSDtfsCounter, 7372 mSDsluCounter, 11468 mSDsCounter, 0 mSdLazyCounter, 8640 mSolverCounterSat, 4573 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7952 SdHoareTripleChecker+Valid, 16526 SdHoareTripleChecker+Invalid, 13216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4573 IncrementalHoareTripleChecker+Valid, 8640 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:00:03,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7952 Valid, 16526 Invalid, 13216 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4573 Valid, 8640 Invalid, 3 Unknown, 0 Unchecked, 56.2s Time] [2022-11-18 20:00:04,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14184 states. [2022-11-18 20:00:04,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14184 to 12956. [2022-11-18 20:00:04,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12956 states, 9347 states have (on average 1.438322456403124) internal successors, (13444), 9557 states have internal predecessors, (13444), 3156 states have call successors, (3156), 453 states have call predecessors, (3156), 452 states have return successors, (3144), 3081 states have call predecessors, (3144), 3144 states have call successors, (3144) [2022-11-18 20:00:04,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12956 states to 12956 states and 19744 transitions. [2022-11-18 20:00:04,834 INFO L78 Accepts]: Start accepts. Automaton has 12956 states and 19744 transitions. Word has length 222 [2022-11-18 20:00:04,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:00:04,836 INFO L495 AbstractCegarLoop]: Abstraction has 12956 states and 19744 transitions. [2022-11-18 20:00:04,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-18 20:00:04,836 INFO L276 IsEmpty]: Start isEmpty. Operand 12956 states and 19744 transitions. [2022-11-18 20:00:04,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-18 20:00:04,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:00:04,841 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:00:04,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:00:04,842 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:00:04,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:00:04,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1759937802, now seen corresponding path program 1 times [2022-11-18 20:00:04,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:00:04,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094118092] [2022-11-18 20:00:04,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:00:04,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:00:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:00:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:00:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:00:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:00:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:00:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:00:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:00:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:00:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:00:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 20:00:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:06,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 20:00:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:06,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 20:00:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:06,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 20:00:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:06,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:00:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:06,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 20:00:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:06,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 20:00:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 20:00:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:06,161 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-18 20:00:06,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:00:06,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094118092] [2022-11-18 20:00:06,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094118092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:00:06,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:00:06,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:00:06,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711553206] [2022-11-18 20:00:06,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:00:06,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:00:06,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:00:06,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:00:06,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:00:06,165 INFO L87 Difference]: Start difference. First operand 12956 states and 19744 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:00:10,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:00:17,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:00:21,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:00:24,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:00:31,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:00:36,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:00:36,929 INFO L93 Difference]: Finished difference Result 28199 states and 43838 transitions. [2022-11-18 20:00:36,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:00:36,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 222 [2022-11-18 20:00:36,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:00:37,095 INFO L225 Difference]: With dead ends: 28199 [2022-11-18 20:00:37,096 INFO L226 Difference]: Without dead ends: 28193 [2022-11-18 20:00:37,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:00:37,115 INFO L413 NwaCegarLoop]: 5161 mSDtfsCounter, 9982 mSDsluCounter, 6666 mSDsCounter, 0 mSdLazyCounter, 5335 mSolverCounterSat, 7077 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10635 SdHoareTripleChecker+Valid, 11827 SdHoareTripleChecker+Invalid, 12414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7077 IncrementalHoareTripleChecker+Valid, 5335 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:00:37,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10635 Valid, 11827 Invalid, 12414 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7077 Valid, 5335 Invalid, 2 Unknown, 0 Unchecked, 29.5s Time] [2022-11-18 20:00:37,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28193 states. [2022-11-18 20:00:38,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28193 to 25785. [2022-11-18 20:00:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25785 states, 18623 states have (on average 1.4385974332814262) internal successors, (26791), 19036 states have internal predecessors, (26791), 6267 states have call successors, (6267), 899 states have call predecessors, (6267), 894 states have return successors, (6411), 6121 states have call predecessors, (6411), 6255 states have call successors, (6411) [2022-11-18 20:00:39,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25785 states to 25785 states and 39469 transitions. [2022-11-18 20:00:39,039 INFO L78 Accepts]: Start accepts. Automaton has 25785 states and 39469 transitions. Word has length 222 [2022-11-18 20:00:39,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:00:39,039 INFO L495 AbstractCegarLoop]: Abstraction has 25785 states and 39469 transitions. [2022-11-18 20:00:39,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:00:39,040 INFO L276 IsEmpty]: Start isEmpty. Operand 25785 states and 39469 transitions. [2022-11-18 20:00:39,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-18 20:00:39,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:00:39,043 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:00:39,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:00:39,044 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:00:39,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:00:39,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1275149147, now seen corresponding path program 1 times [2022-11-18 20:00:39,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:00:39,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660378396] [2022-11-18 20:00:39,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:00:39,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:00:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:00:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:00:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:00:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:00:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:00:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:00:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:00:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:00:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:39,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:00:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:40,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:00:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:00:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:40,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 20:00:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:40,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 20:00:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:40,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 20:00:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 20:00:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:40,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:00:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:40,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 20:00:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:40,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 20:00:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:40,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 20:00:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:40,252 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-18 20:00:40,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:00:40,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660378396] [2022-11-18 20:00:40,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660378396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:00:40,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:00:40,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:00:40,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404979260] [2022-11-18 20:00:40,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:00:40,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:00:40,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:00:40,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:00:40,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:00:40,256 INFO L87 Difference]: Start difference. First operand 25785 states and 39469 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:00:43,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:00:46,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:00:48,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:00:58,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:01:12,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:01:17,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:01:19,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:01:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:01:26,382 INFO L93 Difference]: Finished difference Result 28191 states and 43818 transitions. [2022-11-18 20:01:26,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:01:26,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 223 [2022-11-18 20:01:26,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:01:26,519 INFO L225 Difference]: With dead ends: 28191 [2022-11-18 20:01:26,519 INFO L226 Difference]: Without dead ends: 28188 [2022-11-18 20:01:26,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:01:26,532 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 6318 mSDsluCounter, 7471 mSDsCounter, 0 mSdLazyCounter, 4959 mSolverCounterSat, 2704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6919 SdHoareTripleChecker+Valid, 11888 SdHoareTripleChecker+Invalid, 7663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2704 IncrementalHoareTripleChecker+Valid, 4959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:01:26,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6919 Valid, 11888 Invalid, 7663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2704 Valid, 4959 Invalid, 0 Unknown, 0 Unchecked, 44.9s Time] [2022-11-18 20:01:26,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28188 states. [2022-11-18 20:01:28,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28188 to 25784. [2022-11-18 20:01:28,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25784 states, 18623 states have (on average 1.4385437362401332) internal successors, (26790), 19035 states have internal predecessors, (26790), 6266 states have call successors, (6266), 899 states have call predecessors, (6266), 894 states have return successors, (6411), 6121 states have call predecessors, (6411), 6255 states have call successors, (6411) [2022-11-18 20:01:28,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25784 states to 25784 states and 39467 transitions. [2022-11-18 20:01:28,571 INFO L78 Accepts]: Start accepts. Automaton has 25784 states and 39467 transitions. Word has length 223 [2022-11-18 20:01:28,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:01:28,576 INFO L495 AbstractCegarLoop]: Abstraction has 25784 states and 39467 transitions. [2022-11-18 20:01:28,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:01:28,576 INFO L276 IsEmpty]: Start isEmpty. Operand 25784 states and 39467 transitions. [2022-11-18 20:01:28,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-18 20:01:28,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:01:28,580 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:01:28,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:01:28,581 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:01:28,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:01:28,581 INFO L85 PathProgramCache]: Analyzing trace with hash 873568921, now seen corresponding path program 1 times [2022-11-18 20:01:28,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:01:28,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831278678] [2022-11-18 20:01:28,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:01:28,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:01:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:01:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:01:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:01:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:01:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:01:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:01:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:01:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:01:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:01:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 20:01:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 20:01:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 20:01:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 20:01:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:01:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 20:01:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 20:01:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 20:01:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:29,763 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-18 20:01:29,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:01:29,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831278678] [2022-11-18 20:01:29,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831278678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:01:29,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:01:29,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:01:29,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219184606] [2022-11-18 20:01:29,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:01:29,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:01:29,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:01:29,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:01:29,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:01:29,766 INFO L87 Difference]: Start difference. First operand 25784 states and 39467 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:01:33,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:01:43,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:01:46,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:01:52,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:01:52,523 INFO L93 Difference]: Finished difference Result 28190 states and 43816 transitions. [2022-11-18 20:01:52,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:01:52,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 224 [2022-11-18 20:01:52,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:01:52,829 INFO L225 Difference]: With dead ends: 28190 [2022-11-18 20:01:52,830 INFO L226 Difference]: Without dead ends: 28187 [2022-11-18 20:01:52,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:01:52,848 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 7347 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 3856 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7950 SdHoareTripleChecker+Valid, 7170 SdHoareTripleChecker+Invalid, 6404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3856 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:01:52,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7950 Valid, 7170 Invalid, 6404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3856 Valid, 2547 Invalid, 1 Unknown, 0 Unchecked, 21.3s Time] [2022-11-18 20:01:52,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28187 states. [2022-11-18 20:01:54,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28187 to 25783. [2022-11-18 20:01:54,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25783 states, 18623 states have (on average 1.4384900391988402) internal successors, (26789), 19034 states have internal predecessors, (26789), 6265 states have call successors, (6265), 899 states have call predecessors, (6265), 894 states have return successors, (6411), 6121 states have call predecessors, (6411), 6255 states have call successors, (6411) [2022-11-18 20:01:54,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25783 states to 25783 states and 39465 transitions. [2022-11-18 20:01:54,807 INFO L78 Accepts]: Start accepts. Automaton has 25783 states and 39465 transitions. Word has length 224 [2022-11-18 20:01:54,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:01:54,808 INFO L495 AbstractCegarLoop]: Abstraction has 25783 states and 39465 transitions. [2022-11-18 20:01:54,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:01:54,808 INFO L276 IsEmpty]: Start isEmpty. Operand 25783 states and 39465 transitions. [2022-11-18 20:01:54,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-18 20:01:54,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:01:54,812 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:01:54,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:01:54,813 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:01:54,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:01:54,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1309488670, now seen corresponding path program 1 times [2022-11-18 20:01:54,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:01:54,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877735627] [2022-11-18 20:01:54,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:01:54,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:01:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:01:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:01:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:01:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:01:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:01:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:01:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:01:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:01:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:01:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:01:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:01:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 20:01:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 20:01:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 20:01:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 20:01:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:01:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:55,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 20:01:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:56,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 20:01:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:56,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 20:01:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-18 20:01:56,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:01:56,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877735627] [2022-11-18 20:01:56,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877735627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:01:56,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:01:56,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:01:56,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159683882] [2022-11-18 20:01:56,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:01:56,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:01:56,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:01:56,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:01:56,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:01:56,306 INFO L87 Difference]: Start difference. First operand 25783 states and 39465 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:02:02,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:05,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:06,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:20,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:22,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:23,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:24,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:27,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:31,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:34,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:36,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:38,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:41,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:42,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:50,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:50,544 INFO L93 Difference]: Finished difference Result 28189 states and 43814 transitions. [2022-11-18 20:02:50,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:02:50,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 225 [2022-11-18 20:02:50,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:50,712 INFO L225 Difference]: With dead ends: 28189 [2022-11-18 20:02:50,713 INFO L226 Difference]: Without dead ends: 28186 [2022-11-18 20:02:50,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:02:50,727 INFO L413 NwaCegarLoop]: 4410 mSDtfsCounter, 6317 mSDsluCounter, 7467 mSDsCounter, 0 mSdLazyCounter, 4947 mSolverCounterSat, 2699 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6917 SdHoareTripleChecker+Valid, 11877 SdHoareTripleChecker+Invalid, 7648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2699 IncrementalHoareTripleChecker+Valid, 4947 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:50,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6917 Valid, 11877 Invalid, 7648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2699 Valid, 4947 Invalid, 2 Unknown, 0 Unchecked, 52.3s Time] [2022-11-18 20:02:50,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28186 states. [2022-11-18 20:02:52,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28186 to 25782. [2022-11-18 20:02:52,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25782 states, 18623 states have (on average 1.438436342157547) internal successors, (26788), 19033 states have internal predecessors, (26788), 6264 states have call successors, (6264), 899 states have call predecessors, (6264), 894 states have return successors, (6411), 6121 states have call predecessors, (6411), 6255 states have call successors, (6411) [2022-11-18 20:02:52,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25782 states to 25782 states and 39463 transitions. [2022-11-18 20:02:52,519 INFO L78 Accepts]: Start accepts. Automaton has 25782 states and 39463 transitions. Word has length 225 [2022-11-18 20:02:52,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:52,520 INFO L495 AbstractCegarLoop]: Abstraction has 25782 states and 39463 transitions. [2022-11-18 20:02:52,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:02:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 25782 states and 39463 transitions. [2022-11-18 20:02:52,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-18 20:02:52,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:52,524 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:52,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:02:52,525 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:02:52,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:52,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1938103868, now seen corresponding path program 1 times [2022-11-18 20:02:52,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:52,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951800035] [2022-11-18 20:02:52,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:52,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:02:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:02:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:02:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:02:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:02:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:02:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:02:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:02:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:02:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 20:02:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 20:02:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 20:02:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 20:02:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:02:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 20:02:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 20:02:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 20:02:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,628 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-18 20:02:53,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:53,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951800035] [2022-11-18 20:02:53,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951800035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:53,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:53,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:02:53,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845495302] [2022-11-18 20:02:53,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:53,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:02:53,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:53,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:02:53,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:02:53,632 INFO L87 Difference]: Start difference. First operand 25782 states and 39463 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:02:57,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:59,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:07,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:10,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:12,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:18,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:18,170 INFO L93 Difference]: Finished difference Result 28188 states and 43812 transitions. [2022-11-18 20:03:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:03:18,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 226 [2022-11-18 20:03:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:18,286 INFO L225 Difference]: With dead ends: 28188 [2022-11-18 20:03:18,287 INFO L226 Difference]: Without dead ends: 28185 [2022-11-18 20:03:18,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:03:18,300 INFO L413 NwaCegarLoop]: 4447 mSDtfsCounter, 7307 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 3831 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7908 SdHoareTripleChecker+Valid, 7200 SdHoareTripleChecker+Invalid, 6380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3831 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:18,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7908 Valid, 7200 Invalid, 6380 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3831 Valid, 2547 Invalid, 2 Unknown, 0 Unchecked, 22.7s Time] [2022-11-18 20:03:18,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28185 states. [2022-11-18 20:03:19,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28185 to 25781. [2022-11-18 20:03:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25781 states, 18623 states have (on average 1.438382645116254) internal successors, (26787), 19032 states have internal predecessors, (26787), 6263 states have call successors, (6263), 899 states have call predecessors, (6263), 894 states have return successors, (6411), 6121 states have call predecessors, (6411), 6255 states have call successors, (6411) [2022-11-18 20:03:19,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25781 states to 25781 states and 39461 transitions. [2022-11-18 20:03:19,958 INFO L78 Accepts]: Start accepts. Automaton has 25781 states and 39461 transitions. Word has length 226 [2022-11-18 20:03:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:19,959 INFO L495 AbstractCegarLoop]: Abstraction has 25781 states and 39461 transitions. [2022-11-18 20:03:19,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:03:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 25781 states and 39461 transitions. [2022-11-18 20:03:19,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-18 20:03:19,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:19,962 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:19,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:03:19,963 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:19,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:19,963 INFO L85 PathProgramCache]: Analyzing trace with hash -49656607, now seen corresponding path program 1 times [2022-11-18 20:03:19,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:19,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907036554] [2022-11-18 20:03:19,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:19,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:03:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:03:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:03:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:03:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:03:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:03:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:03:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:03:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:03:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 20:03:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 20:03:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 20:03:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 20:03:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:03:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 20:03:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 20:03:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:21,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 20:03:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:21,035 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-18 20:03:21,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:21,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907036554] [2022-11-18 20:03:21,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907036554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:21,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:21,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:03:21,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28121326] [2022-11-18 20:03:21,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:21,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:03:21,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:21,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:03:21,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:03:21,040 INFO L87 Difference]: Start difference. First operand 25781 states and 39461 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:03:25,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:29,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:41,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:51,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:51,974 INFO L93 Difference]: Finished difference Result 81511 states and 126403 transitions. [2022-11-18 20:03:51,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:03:51,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 227 [2022-11-18 20:03:51,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:52,249 INFO L225 Difference]: With dead ends: 81511 [2022-11-18 20:03:52,250 INFO L226 Difference]: Without dead ends: 55767 [2022-11-18 20:03:52,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:03:52,376 INFO L413 NwaCegarLoop]: 5602 mSDtfsCounter, 9884 mSDsluCounter, 6959 mSDsCounter, 0 mSdLazyCounter, 5370 mSolverCounterSat, 6706 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10525 SdHoareTripleChecker+Valid, 12561 SdHoareTripleChecker+Invalid, 12077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6706 IncrementalHoareTripleChecker+Valid, 5370 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:52,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10525 Valid, 12561 Invalid, 12077 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6706 Valid, 5370 Invalid, 1 Unknown, 0 Unchecked, 27.0s Time] [2022-11-18 20:03:52,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55767 states. [2022-11-18 20:03:55,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55767 to 50928. [2022-11-18 20:03:55,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50928 states, 36879 states have (on average 1.4393557309037663) internal successors, (53082), 37617 states have internal predecessors, (53082), 12318 states have call successors, (12318), 1756 states have call predecessors, (12318), 1730 states have return successors, (12801), 12070 states have call predecessors, (12801), 12309 states have call successors, (12801) [2022-11-18 20:03:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50928 states to 50928 states and 78201 transitions. [2022-11-18 20:03:56,002 INFO L78 Accepts]: Start accepts. Automaton has 50928 states and 78201 transitions. Word has length 227 [2022-11-18 20:03:56,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:56,003 INFO L495 AbstractCegarLoop]: Abstraction has 50928 states and 78201 transitions. [2022-11-18 20:03:56,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:03:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 50928 states and 78201 transitions. [2022-11-18 20:03:56,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-18 20:03:56,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:56,007 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:56,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:03:56,007 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:56,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:56,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1540684321, now seen corresponding path program 1 times [2022-11-18 20:03:56,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:56,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264827254] [2022-11-18 20:03:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:56,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:03:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:03:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:03:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:03:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:03:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:03:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:03:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:03:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:56,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:03:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:57,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:57,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 20:03:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:57,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 20:03:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:57,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 20:03:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:57,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 20:03:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:57,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:03:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:57,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 20:03:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:57,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 20:03:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:57,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 20:03:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:57,240 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-18 20:03:57,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:57,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264827254] [2022-11-18 20:03:57,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264827254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:57,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:57,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:03:57,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745881108] [2022-11-18 20:03:57,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:57,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:03:57,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:57,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:03:57,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:03:57,243 INFO L87 Difference]: Start difference. First operand 50928 states and 78201 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:04:01,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:04,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:17,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:19,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:20,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:27,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:33,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:47,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:04:47,059 INFO L93 Difference]: Finished difference Result 55738 states and 86950 transitions. [2022-11-18 20:04:47,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:04:47,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 228 [2022-11-18 20:04:47,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:04:47,224 INFO L225 Difference]: With dead ends: 55738 [2022-11-18 20:04:47,224 INFO L226 Difference]: Without dead ends: 55725 [2022-11-18 20:04:47,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:04:47,242 INFO L413 NwaCegarLoop]: 4411 mSDtfsCounter, 6299 mSDsluCounter, 7468 mSDsCounter, 0 mSdLazyCounter, 4947 mSolverCounterSat, 2710 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6901 SdHoareTripleChecker+Valid, 11879 SdHoareTripleChecker+Invalid, 7658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2710 IncrementalHoareTripleChecker+Valid, 4947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:04:47,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6901 Valid, 11879 Invalid, 7658 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2710 Valid, 4947 Invalid, 1 Unknown, 0 Unchecked, 46.3s Time] [2022-11-18 20:04:47,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55725 states. [2022-11-18 20:04:50,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55725 to 50917. [2022-11-18 20:04:50,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50917 states, 36869 states have (on average 1.4392850362092815) internal successors, (53065), 37606 states have internal predecessors, (53065), 12317 states have call successors, (12317), 1756 states have call predecessors, (12317), 1730 states have return successors, (12801), 12070 states have call predecessors, (12801), 12309 states have call successors, (12801) [2022-11-18 20:04:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50917 states to 50917 states and 78183 transitions. [2022-11-18 20:04:51,111 INFO L78 Accepts]: Start accepts. Automaton has 50917 states and 78183 transitions. Word has length 228 [2022-11-18 20:04:51,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:04:51,112 INFO L495 AbstractCegarLoop]: Abstraction has 50917 states and 78183 transitions. [2022-11-18 20:04:51,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 20:04:51,113 INFO L276 IsEmpty]: Start isEmpty. Operand 50917 states and 78183 transitions. [2022-11-18 20:04:51,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-18 20:04:51,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:04:51,117 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:04:51,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:04:51,117 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:04:51,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:51,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2056541699, now seen corresponding path program 1 times [2022-11-18 20:04:51,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:51,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840029843] [2022-11-18 20:04:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:51,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:04:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:04:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:04:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:04:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:04:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:04:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:04:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:04:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:04:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 20:04:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 20:04:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 20:04:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 20:04:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:04:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 20:04:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:52,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 20:04:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:52,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 20:04:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:52,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-18 20:04:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:52,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:52,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:52,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-18 20:04:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:52,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:04:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-11-18 20:04:52,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:52,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840029843] [2022-11-18 20:04:52,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840029843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:52,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:52,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:04:52,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997278867] [2022-11-18 20:04:52,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:52,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:04:52,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:52,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:04:52,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:04:52,102 INFO L87 Difference]: Start difference. First operand 50917 states and 78183 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 20:04:58,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:29,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:36,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:43,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:52,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:52,366 INFO L93 Difference]: Finished difference Result 162265 states and 252042 transitions. [2022-11-18 20:05:52,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:05:52,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 262 [2022-11-18 20:05:52,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:53,094 INFO L225 Difference]: With dead ends: 162265 [2022-11-18 20:05:53,095 INFO L226 Difference]: Without dead ends: 111385 [2022-11-18 20:05:53,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:05:53,253 INFO L413 NwaCegarLoop]: 2983 mSDtfsCounter, 14405 mSDsluCounter, 5529 mSDsCounter, 0 mSdLazyCounter, 12046 mSolverCounterSat, 9847 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15137 SdHoareTripleChecker+Valid, 8512 SdHoareTripleChecker+Invalid, 21894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9847 IncrementalHoareTripleChecker+Valid, 12046 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:53,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15137 Valid, 8512 Invalid, 21894 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9847 Valid, 12046 Invalid, 1 Unknown, 0 Unchecked, 51.8s Time] [2022-11-18 20:05:53,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111385 states. [2022-11-18 20:06:00,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111385 to 101635. [2022-11-18 20:06:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101635 states, 73557 states have (on average 1.4390608643636909) internal successors, (105853), 75030 states have internal predecessors, (105853), 24521 states have call successors, (24521), 3490 states have call predecessors, (24521), 3556 states have return successors, (25797), 24114 states have call predecessors, (25797), 24513 states have call successors, (25797) [2022-11-18 20:06:01,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101635 states to 101635 states and 156171 transitions. [2022-11-18 20:06:01,433 INFO L78 Accepts]: Start accepts. Automaton has 101635 states and 156171 transitions. Word has length 262 [2022-11-18 20:06:01,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:01,433 INFO L495 AbstractCegarLoop]: Abstraction has 101635 states and 156171 transitions. [2022-11-18 20:06:01,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 20:06:01,433 INFO L276 IsEmpty]: Start isEmpty. Operand 101635 states and 156171 transitions. [2022-11-18 20:06:01,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-11-18 20:06:01,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:01,439 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 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] [2022-11-18 20:06:01,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:06:01,439 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:06:01,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:01,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2117536059, now seen corresponding path program 1 times [2022-11-18 20:06:01,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:01,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531456341] [2022-11-18 20:06:01,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:01,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:06:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:06:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:06:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:06:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:06:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:06:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:06:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:06:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:06:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 20:06:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 20:06:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 20:06:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 20:06:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:06:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 20:06:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-18 20:06:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 20:06:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 20:06:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-11-18 20:06:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-18 20:06:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-11-18 20:06:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-18 20:06:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-18 20:06:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:06:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2022-11-18 20:06:02,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:02,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531456341] [2022-11-18 20:06:02,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531456341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:02,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:02,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:06:02,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789485781] [2022-11-18 20:06:02,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:02,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:06:02,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:02,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:06:02,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:06:02,727 INFO L87 Difference]: Start difference. First operand 101635 states and 156171 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-18 20:06:07,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:23,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:25,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:30,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:31,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:33,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:35,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []