./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a --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 e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d --- 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-b5237d8 [2022-11-21 16:30:51,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:30:51,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:30:51,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:30:51,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:30:51,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:30:51,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:30:51,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:30:51,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:30:51,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:30:51,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:30:51,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:30:51,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:30:51,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:30:51,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:30:51,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:30:51,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:30:51,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:30:51,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:30:51,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:30:51,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:30:51,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:30:51,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:30:51,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:30:51,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:30:51,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:30:51,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:30:51,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:30:51,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:30:51,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:30:51,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:30:51,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:30:51,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:30:51,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:30:51,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:30:51,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:30:51,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:30:51,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:30:51,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:30:51,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:30:51,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:30:51,355 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:30:51,393 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:30:51,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:30:51,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:30:51,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:30:51,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:30:51,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:30:51,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:30:51,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:30:51,400 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:30:51,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:30:51,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:30:51,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:30:51,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:30:51,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:30:51,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:30:51,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:30:51,404 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:30:51,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:30:51,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:30:51,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:30:51,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:30:51,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:30:51,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:30:51,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:30:51,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:30:51,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:30:51,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:30:51,407 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:30:51,408 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:30:51,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:30:51,408 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_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d [2022-11-21 16:30:51,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:30:51,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:30:51,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:30:51,808 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:30:51,808 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:30:51,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2022-11-21 16:30:54,979 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:30:55,871 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:30:55,872 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2022-11-21 16:30:55,941 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/data/42bc96b27/f771e21d055945fabacb1ee896ef55bc/FLAGde820d2e6 [2022-11-21 16:30:55,961 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/data/42bc96b27/f771e21d055945fabacb1ee896ef55bc [2022-11-21 16:30:55,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:30:55,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:30:55,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:30:55,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:30:55,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:30:55,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:30:55" (1/1) ... [2022-11-21 16:30:55,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b1d30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:55, skipping insertion in model container [2022-11-21 16:30:55,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:30:55" (1/1) ... [2022-11-21 16:30:55,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:30:56,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:31:00,345 WARN L237 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_8af7dc4e-68aa-4df7-bee6-8c275644926b/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2022-11-21 16:31:00,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:31:00,729 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:31:01,342 WARN L237 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_8af7dc4e-68aa-4df7-bee6-8c275644926b/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2022-11-21 16:31:01,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:31:01,813 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:31:01,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01 WrapperNode [2022-11-21 16:31:01,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:31:01,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:31:01,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:31:01,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:31:01,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (1/1) ... [2022-11-21 16:31:01,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (1/1) ... [2022-11-21 16:31:02,456 INFO L138 Inliner]: procedures = 511, calls = 3849, calls flagged for inlining = 265, calls inlined = 264, statements flattened = 9568 [2022-11-21 16:31:02,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:31:02,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:31:02,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:31:02,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:31:02,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (1/1) ... [2022-11-21 16:31:02,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (1/1) ... [2022-11-21 16:31:02,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (1/1) ... [2022-11-21 16:31:02,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (1/1) ... [2022-11-21 16:31:02,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (1/1) ... [2022-11-21 16:31:02,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (1/1) ... [2022-11-21 16:31:02,895 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (1/1) ... [2022-11-21 16:31:02,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (1/1) ... [2022-11-21 16:31:03,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:31:03,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:31:03,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:31:03,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:31:03,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (1/1) ... [2022-11-21 16:31:03,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:31:03,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:31:03,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:31:03,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8af7dc4e-68aa-4df7-bee6-8c275644926b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:31:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2022-11-21 16:31:03,122 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2022-11-21 16:31:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 16:31:03,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 16:31:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_freeze [2022-11-21 16:31:03,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_freeze [2022-11-21 16:31:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2022-11-21 16:31:03,123 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2022-11-21 16:31:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_dpms [2022-11-21 16:31:03,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_dpms [2022-11-21 16:31:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_pin [2022-11-21 16:31:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_pin [2022-11-21 16:31:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2022-11-21 16:31:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2022-11-21 16:31:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure ast_read32 [2022-11-21 16:31:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_read32 [2022-11-21 16:31:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-21 16:31:03,125 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-21 16:31:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_dll2 [2022-11-21 16:31:03,125 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_dll2 [2022-11-21 16:31:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_fixup [2022-11-21 16:31:03,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_fixup [2022-11-21 16:31:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:31:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure moutdwm [2022-11-21 16:31:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure moutdwm [2022-11-21 16:31:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_thaw [2022-11-21 16:31:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_thaw [2022-11-21 16:31:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure ast_dirty_update [2022-11-21 16:31:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_dirty_update [2022-11-21 16:31:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg_mask [2022-11-21 16:31:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg_mask [2022-11-21 16:31:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2022-11-21 16:31:03,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2022-11-21 16:31:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_placement [2022-11-21 16:31:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_placement [2022-11-21 16:31:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_load_lut [2022-11-21 16:31:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_load_lut [2022-11-21 16:31:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 16:31:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2022-11-21 16:31:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2022-11-21 16:31:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2022-11-21 16:31:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2022-11-21 16:31:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 16:31:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2022-11-21 16:31:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2022-11-21 16:31:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_disable [2022-11-21 16:31:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_disable [2022-11-21 16:31:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:31:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set_base [2022-11-21 16:31:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set_base [2022-11-21 16:31:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-21 16:31:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-21 16:31:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure mindwm [2022-11-21 16:31:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure mindwm [2022-11-21 16:31:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_read8 [2022-11-21 16:31:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_read8 [2022-11-21 16:31:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-21 16:31:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-21 16:31:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_create_handle [2022-11-21 16:31:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_create_handle [2022-11-21 16:31:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:31:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:31:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_gamma_set [2022-11-21 16:31:03,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_gamma_set [2022-11-21 16:31:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-21 16:31:03,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-21 16:31:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure ast_fbdev_set_suspend [2022-11-21 16:31:03,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_fbdev_set_suspend [2022-11-21 16:31:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:31:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 16:31:03,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 16:31:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure ast_framebuffer_init [2022-11-21 16:31:03,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_framebuffer_init [2022-11-21 16:31:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_set [2022-11-21 16:31:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_set [2022-11-21 16:31:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure ast_open_key [2022-11-21 16:31:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_open_key [2022-11-21 16:31:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2022-11-21 16:31:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2022-11-21 16:31:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_burst2 [2022-11-21 16:31:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_burst2 [2022-11-21 16:31:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_unreserve [2022-11-21 16:31:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_unreserve [2022-11-21 16:31:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-21 16:31:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-21 16:31:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:31:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:31:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-21 16:31:03,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-21 16:31:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 16:31:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 16:31:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_detect [2022-11-21 16:31:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_detect [2022-11-21 16:31:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_prepare [2022-11-21 16:31:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_prepare [2022-11-21 16:31:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure ast_get_index_reg_mask [2022-11-21 16:31:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_get_index_reg_mask [2022-11-21 16:31:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_create [2022-11-21 16:31:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_create [2022-11-21 16:31:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_prepare [2022-11-21 16:31:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_prepare [2022-11-21 16:31:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-21 16:31:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-21 16:31:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 16:31:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 16:31:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_reserve [2022-11-21 16:31:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_reserve [2022-11-21 16:31:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2022-11-21 16:31:03,150 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2022-11-21 16:31:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mmap [2022-11-21 16:31:03,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mmap [2022-11-21 16:31:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-21 16:31:03,151 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-21 16:31:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-21 16:31:03,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-21 16:31:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:31:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2022-11-21 16:31:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2022-11-21 16:31:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2022-11-21 16:31:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2022-11-21 16:31:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:31:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_destroy [2022-11-21 16:31:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_destroy [2022-11-21 16:31:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_commit [2022-11-21 16:31:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_commit [2022-11-21 16:31:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:31:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_resume [2022-11-21 16:31:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_resume [2022-11-21 16:31:03,166 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-21 16:31:03,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-21 16:31:03,166 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_write8 [2022-11-21 16:31:03,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_write8 [2022-11-21 16:31:03,167 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2022-11-21 16:31:03,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2022-11-21 16:31:03,167 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_destroy [2022-11-21 16:31:03,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_destroy [2022-11-21 16:31:03,167 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_gpu_offset [2022-11-21 16:31:03,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_gpu_offset [2022-11-21 16:31:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure ast_write32 [2022-11-21 16:31:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_write32 [2022-11-21 16:31:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_reset [2022-11-21 16:31:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_reset [2022-11-21 16:31:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_free_object [2022-11-21 16:31:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_free_object [2022-11-21 16:31:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked___0 [2022-11-21 16:31:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked___0 [2022-11-21 16:31:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_backend_destroy [2022-11-21 16:31:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_backend_destroy [2022-11-21 16:31:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pci_remove [2022-11-21 16:31:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pci_remove [2022-11-21 16:31:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2022-11-21 16:31:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2022-11-21 16:31:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set [2022-11-21 16:31:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set [2022-11-21 16:31:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_single2 [2022-11-21 16:31:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_single2 [2022-11-21 16:31:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 16:31:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 16:31:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:31:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg [2022-11-21 16:31:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg [2022-11-21 16:31:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure cbrdlli_ast2150 [2022-11-21 16:31:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure cbrdlli_ast2150 [2022-11-21 16:31:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 16:31:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 16:31:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fasync [2022-11-21 16:31:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fasync [2022-11-21 16:31:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2022-11-21 16:31:03,174 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2022-11-21 16:31:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_commit [2022-11-21 16:31:03,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_commit [2022-11-21 16:31:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2022-11-21 16:31:03,174 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2022-11-21 16:31:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2022-11-21 16:31:03,175 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2022-11-21 16:31:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_move [2022-11-21 16:31:03,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_move [2022-11-21 16:31:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2022-11-21 16:31:03,175 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2022-11-21 16:31:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2022-11-21 16:31:03,176 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2022-11-21 16:31:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_update_edid_property [2022-11-21 16:31:03,176 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_update_edid_property [2022-11-21 16:31:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_scan2 [2022-11-21 16:31:03,176 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_scan2 [2022-11-21 16:31:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-21 16:31:03,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-21 16:31:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_tt_unpopulate [2022-11-21 16:31:03,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_tt_unpopulate [2022-11-21 16:31:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2022-11-21 16:31:03,177 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2022-11-21 16:31:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_destroy [2022-11-21 16:31:03,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_destroy [2022-11-21 16:31:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:31:04,337 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:31:04,357 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:31:24,788 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ast_gem_init_object_returnLabel#1: main_#t~ret94#1 := ast_gem_init_object_#res#1;assume { :end_inline_ast_gem_init_object } true;assume -2147483648 <= main_#t~ret94#1 && main_#t~ret94#1 <= 2147483647;havoc main_#t~ret94#1;~ldv_state_variable_13~0 := 1; [2022-11-21 16:31:24,952 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:31:24,988 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:31:24,988 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 16:31:24,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:31:24 BoogieIcfgContainer [2022-11-21 16:31:24,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:31:24,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:31:24,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:31:25,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:31:25,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:30:55" (1/3) ... [2022-11-21 16:31:25,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443a1698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:31:25, skipping insertion in model container [2022-11-21 16:31:25,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:01" (2/3) ... [2022-11-21 16:31:25,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443a1698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:31:25, skipping insertion in model container [2022-11-21 16:31:25,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:31:24" (3/3) ... [2022-11-21 16:31:25,008 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2022-11-21 16:31:25,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:31:25,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:31:25,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:31:25,173 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;@232542e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:31:25,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:31:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand has 2567 states, 1830 states have (on average 1.4382513661202185) internal successors, (2632), 1888 states have internal predecessors, (2632), 647 states have call successors, (647), 88 states have call predecessors, (647), 88 states have return successors, (647), 627 states have call predecessors, (647), 647 states have call successors, (647) [2022-11-21 16:31:25,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-21 16:31:25,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:31:25,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:25,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:31:25,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:25,227 INFO L85 PathProgramCache]: Analyzing trace with hash 337448765, now seen corresponding path program 1 times [2022-11-21 16:31:25,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:25,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393358393] [2022-11-21 16:31:25,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:25,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:26,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:26,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:26,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393358393] [2022-11-21 16:31:26,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393358393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:26,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:26,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:31:26,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128137786] [2022-11-21 16:31:26,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:26,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:31:26,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:26,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:31:26,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:26,449 INFO L87 Difference]: Start difference. First operand has 2567 states, 1830 states have (on average 1.4382513661202185) internal successors, (2632), 1888 states have internal predecessors, (2632), 647 states have call successors, (647), 88 states have call predecessors, (647), 88 states have return successors, (647), 627 states have call predecessors, (647), 647 states have call successors, (647) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:27,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:31:27,428 INFO L93 Difference]: Finished difference Result 7664 states and 11853 transitions. [2022-11-21 16:31:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:31:27,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-21 16:31:27,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:31:27,510 INFO L225 Difference]: With dead ends: 7664 [2022-11-21 16:31:27,510 INFO L226 Difference]: Without dead ends: 5094 [2022-11-21 16:31:27,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:27,545 INFO L413 NwaCegarLoop]: 4713 mSDtfsCounter, 3868 mSDsluCounter, 3892 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3868 SdHoareTripleChecker+Valid, 8605 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:31:27,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3868 Valid, 8605 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:31:27,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5094 states. [2022-11-21 16:31:28,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5094 to 5088. [2022-11-21 16:31:28,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5088 states, 3630 states have (on average 1.4358126721763085) internal successors, (5212), 3732 states have internal predecessors, (5212), 1283 states have call successors, (1283), 175 states have call predecessors, (1283), 174 states have return successors, (1272), 1232 states have call predecessors, (1272), 1272 states have call successors, (1272) [2022-11-21 16:31:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5088 states to 5088 states and 7767 transitions. [2022-11-21 16:31:28,255 INFO L78 Accepts]: Start accepts. Automaton has 5088 states and 7767 transitions. Word has length 18 [2022-11-21 16:31:28,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:31:28,259 INFO L495 AbstractCegarLoop]: Abstraction has 5088 states and 7767 transitions. [2022-11-21 16:31:28,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:28,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5088 states and 7767 transitions. [2022-11-21 16:31:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-21 16:31:28,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:31:28,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:28,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:31:28,269 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:31:28,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:28,270 INFO L85 PathProgramCache]: Analyzing trace with hash 392291437, now seen corresponding path program 1 times [2022-11-21 16:31:28,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:28,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867241482] [2022-11-21 16:31:28,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:28,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:28,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:28,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:28,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867241482] [2022-11-21 16:31:28,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867241482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:28,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:28,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:31:28,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061772395] [2022-11-21 16:31:28,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:28,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:31:28,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:28,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:31:28,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:28,821 INFO L87 Difference]: Start difference. First operand 5088 states and 7767 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:31:29,601 INFO L93 Difference]: Finished difference Result 14687 states and 22443 transitions. [2022-11-21 16:31:29,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:31:29,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-21 16:31:29,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:31:29,692 INFO L225 Difference]: With dead ends: 14687 [2022-11-21 16:31:29,692 INFO L226 Difference]: Without dead ends: 9602 [2022-11-21 16:31:29,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:29,738 INFO L413 NwaCegarLoop]: 4555 mSDtfsCounter, 3468 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3468 SdHoareTripleChecker+Valid, 8435 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:31:29,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3468 Valid, 8435 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:31:29,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9602 states. [2022-11-21 16:31:30,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9602 to 9579. [2022-11-21 16:31:30,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9579 states, 6795 states have (on average 1.4384105960264901) internal successors, (9774), 6987 states have internal predecessors, (9774), 2443 states have call successors, (2443), 341 states have call predecessors, (2443), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2022-11-21 16:31:30,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9579 states to 9579 states and 14649 transitions. [2022-11-21 16:31:30,904 INFO L78 Accepts]: Start accepts. Automaton has 9579 states and 14649 transitions. Word has length 23 [2022-11-21 16:31:30,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:31:30,905 INFO L495 AbstractCegarLoop]: Abstraction has 9579 states and 14649 transitions. [2022-11-21 16:31:30,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:30,906 INFO L276 IsEmpty]: Start isEmpty. Operand 9579 states and 14649 transitions. [2022-11-21 16:31:30,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 16:31:30,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:31:30,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:30,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:31:30,909 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:31:30,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:30,910 INFO L85 PathProgramCache]: Analyzing trace with hash -541463186, now seen corresponding path program 1 times [2022-11-21 16:31:30,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:30,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528690035] [2022-11-21 16:31:30,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:30,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:31,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:31,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528690035] [2022-11-21 16:31:31,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528690035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:31,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:31,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:31:31,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164522513] [2022-11-21 16:31:31,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:31,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:31:31,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:31,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:31:31,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:31:31,563 INFO L87 Difference]: Start difference. First operand 9579 states and 14649 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:32,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:31:32,352 INFO L93 Difference]: Finished difference Result 19178 states and 29327 transitions. [2022-11-21 16:31:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:31:32,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-21 16:31:32,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:31:32,447 INFO L225 Difference]: With dead ends: 19178 [2022-11-21 16:31:32,447 INFO L226 Difference]: Without dead ends: 9602 [2022-11-21 16:31:32,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:31:32,512 INFO L413 NwaCegarLoop]: 3902 mSDtfsCounter, 34 mSDsluCounter, 7799 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 11701 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:31:32,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 11701 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:31:32,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9602 states. [2022-11-21 16:31:33,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9602 to 9582. [2022-11-21 16:31:33,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9582 states, 6798 states have (on average 1.4382171226831422) internal successors, (9777), 6990 states have internal predecessors, (9777), 2443 states have call successors, (2443), 341 states have call predecessors, (2443), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2022-11-21 16:31:33,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 14652 transitions. [2022-11-21 16:31:33,426 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 14652 transitions. Word has length 22 [2022-11-21 16:31:33,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:31:33,426 INFO L495 AbstractCegarLoop]: Abstraction has 9582 states and 14652 transitions. [2022-11-21 16:31:33,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:33,427 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 14652 transitions. [2022-11-21 16:31:33,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 16:31:33,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:31:33,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:33,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:31:33,430 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:31:33,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:33,430 INFO L85 PathProgramCache]: Analyzing trace with hash -484204884, now seen corresponding path program 1 times [2022-11-21 16:31:33,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:33,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140013518] [2022-11-21 16:31:33,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:33,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:33,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:33,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:33,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140013518] [2022-11-21 16:31:33,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140013518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:33,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:33,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:31:33,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337972309] [2022-11-21 16:31:33,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:33,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:31:33,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:33,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:31:33,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:33,912 INFO L87 Difference]: Start difference. First operand 9582 states and 14652 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:34,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:31:34,733 INFO L93 Difference]: Finished difference Result 9584 states and 14653 transitions. [2022-11-21 16:31:34,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:31:34,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-21 16:31:34,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:31:34,816 INFO L225 Difference]: With dead ends: 9584 [2022-11-21 16:31:34,816 INFO L226 Difference]: Without dead ends: 9581 [2022-11-21 16:31:34,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:34,835 INFO L413 NwaCegarLoop]: 3902 mSDtfsCounter, 3884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3884 SdHoareTripleChecker+Valid, 3902 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:31:34,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3884 Valid, 3902 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:31:34,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9581 states. [2022-11-21 16:31:35,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9581 to 9581. [2022-11-21 16:31:35,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 6798 states have (on average 1.4380700205942925) internal successors, (9776), 6989 states have internal predecessors, (9776), 2442 states have call successors, (2442), 341 states have call predecessors, (2442), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2022-11-21 16:31:35,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 14650 transitions. [2022-11-21 16:31:35,891 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 14650 transitions. Word has length 22 [2022-11-21 16:31:35,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:31:35,892 INFO L495 AbstractCegarLoop]: Abstraction has 9581 states and 14650 transitions. [2022-11-21 16:31:35,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 14650 transitions. [2022-11-21 16:31:35,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-21 16:31:35,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:31:35,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:35,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:31:35,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:31:35,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:35,896 INFO L85 PathProgramCache]: Analyzing trace with hash -2126562970, now seen corresponding path program 1 times [2022-11-21 16:31:35,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:35,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089948782] [2022-11-21 16:31:35,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:35,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:36,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:36,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:36,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089948782] [2022-11-21 16:31:36,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089948782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:36,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:36,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:31:36,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448352516] [2022-11-21 16:31:36,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:36,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:31:36,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:36,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:31:36,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:36,372 INFO L87 Difference]: Start difference. First operand 9581 states and 14650 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:37,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:31:37,077 INFO L93 Difference]: Finished difference Result 9583 states and 14651 transitions. [2022-11-21 16:31:37,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:31:37,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-21 16:31:37,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:31:37,131 INFO L225 Difference]: With dead ends: 9583 [2022-11-21 16:31:37,131 INFO L226 Difference]: Without dead ends: 9580 [2022-11-21 16:31:37,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:37,139 INFO L413 NwaCegarLoop]: 3900 mSDtfsCounter, 3881 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3881 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:31:37,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3881 Valid, 3900 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:31:37,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9580 states. [2022-11-21 16:31:38,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9580 to 9580. [2022-11-21 16:31:38,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9580 states, 6798 states have (on average 1.4379229185054427) internal successors, (9775), 6988 states have internal predecessors, (9775), 2441 states have call successors, (2441), 341 states have call predecessors, (2441), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2022-11-21 16:31:38,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9580 states to 9580 states and 14648 transitions. [2022-11-21 16:31:38,134 INFO L78 Accepts]: Start accepts. Automaton has 9580 states and 14648 transitions. Word has length 23 [2022-11-21 16:31:38,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:31:38,135 INFO L495 AbstractCegarLoop]: Abstraction has 9580 states and 14648 transitions. [2022-11-21 16:31:38,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:38,135 INFO L276 IsEmpty]: Start isEmpty. Operand 9580 states and 14648 transitions. [2022-11-21 16:31:38,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:31:38,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:31:38,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:38,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:31:38,139 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:31:38,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:38,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1500051217, now seen corresponding path program 1 times [2022-11-21 16:31:38,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:38,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757289925] [2022-11-21 16:31:38,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:38,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:38,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:38,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757289925] [2022-11-21 16:31:38,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757289925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:38,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:38,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:31:38,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958241597] [2022-11-21 16:31:38,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:38,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:31:38,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:38,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:31:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:38,573 INFO L87 Difference]: Start difference. First operand 9580 states and 14648 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:39,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:31:39,363 INFO L93 Difference]: Finished difference Result 9582 states and 14649 transitions. [2022-11-21 16:31:39,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:31:39,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-21 16:31:39,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:31:39,428 INFO L225 Difference]: With dead ends: 9582 [2022-11-21 16:31:39,428 INFO L226 Difference]: Without dead ends: 9579 [2022-11-21 16:31:39,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:39,438 INFO L413 NwaCegarLoop]: 3898 mSDtfsCounter, 3878 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3878 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:31:39,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3878 Valid, 3898 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:31:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2022-11-21 16:31:40,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 9579. [2022-11-21 16:31:40,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9579 states, 6798 states have (on average 1.437775816416593) internal successors, (9774), 6987 states have internal predecessors, (9774), 2440 states have call successors, (2440), 341 states have call predecessors, (2440), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2022-11-21 16:31:40,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9579 states to 9579 states and 14646 transitions. [2022-11-21 16:31:40,981 INFO L78 Accepts]: Start accepts. Automaton has 9579 states and 14646 transitions. Word has length 24 [2022-11-21 16:31:40,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:31:40,981 INFO L495 AbstractCegarLoop]: Abstraction has 9579 states and 14646 transitions. [2022-11-21 16:31:40,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:40,982 INFO L276 IsEmpty]: Start isEmpty. Operand 9579 states and 14646 transitions. [2022-11-21 16:31:40,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 16:31:40,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:31:40,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:40,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:31:40,985 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:31:40,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:40,986 INFO L85 PathProgramCache]: Analyzing trace with hash 741948809, now seen corresponding path program 1 times [2022-11-21 16:31:40,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:40,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304598992] [2022-11-21 16:31:40,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:40,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:41,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:41,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:41,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304598992] [2022-11-21 16:31:41,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304598992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:41,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:41,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:31:41,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008412873] [2022-11-21 16:31:41,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:41,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:31:41,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:41,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:31:41,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:41,426 INFO L87 Difference]: Start difference. First operand 9579 states and 14646 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:42,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:31:42,221 INFO L93 Difference]: Finished difference Result 9581 states and 14647 transitions. [2022-11-21 16:31:42,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:31:42,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-21 16:31:42,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:31:42,278 INFO L225 Difference]: With dead ends: 9581 [2022-11-21 16:31:42,279 INFO L226 Difference]: Without dead ends: 9578 [2022-11-21 16:31:42,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:42,289 INFO L413 NwaCegarLoop]: 3896 mSDtfsCounter, 3875 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3875 SdHoareTripleChecker+Valid, 3896 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:31:42,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3875 Valid, 3896 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:31:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9578 states. [2022-11-21 16:31:43,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9578 to 9578. [2022-11-21 16:31:43,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9578 states, 6798 states have (on average 1.4376287143277435) internal successors, (9773), 6986 states have internal predecessors, (9773), 2439 states have call successors, (2439), 341 states have call predecessors, (2439), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2022-11-21 16:31:43,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9578 states to 9578 states and 14644 transitions. [2022-11-21 16:31:43,329 INFO L78 Accepts]: Start accepts. Automaton has 9578 states and 14644 transitions. Word has length 25 [2022-11-21 16:31:43,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:31:43,331 INFO L495 AbstractCegarLoop]: Abstraction has 9578 states and 14644 transitions. [2022-11-21 16:31:43,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:43,331 INFO L276 IsEmpty]: Start isEmpty. Operand 9578 states and 14644 transitions. [2022-11-21 16:31:43,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-21 16:31:43,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:31:43,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:43,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:31:43,337 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:31:43,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:43,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1520640731, now seen corresponding path program 1 times [2022-11-21 16:31:43,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:43,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480523117] [2022-11-21 16:31:43,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:43,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:43,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:43,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:43,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480523117] [2022-11-21 16:31:43,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480523117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:43,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:43,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:31:43,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911231428] [2022-11-21 16:31:43,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:43,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:31:43,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:43,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:31:43,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:43,772 INFO L87 Difference]: Start difference. First operand 9578 states and 14644 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:45,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:31:45,757 INFO L93 Difference]: Finished difference Result 28647 states and 43804 transitions. [2022-11-21 16:31:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:31:45,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-21 16:31:45,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:31:45,885 INFO L225 Difference]: With dead ends: 28647 [2022-11-21 16:31:45,885 INFO L226 Difference]: Without dead ends: 19072 [2022-11-21 16:31:45,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:45,960 INFO L413 NwaCegarLoop]: 5124 mSDtfsCounter, 3851 mSDsluCounter, 3879 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3851 SdHoareTripleChecker+Valid, 9003 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:31:45,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3851 Valid, 9003 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:31:45,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19072 states. [2022-11-21 16:31:48,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19072 to 19050. [2022-11-21 16:31:48,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19050 states, 13514 states have (on average 1.4373982536628682) internal successors, (19425), 13884 states have internal predecessors, (19425), 4859 states have call successors, (4859), 677 states have call predecessors, (4859), 676 states have return successors, (4852), 4692 states have call predecessors, (4852), 4852 states have call successors, (4852) [2022-11-21 16:31:48,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19050 states to 19050 states and 29136 transitions. [2022-11-21 16:31:48,393 INFO L78 Accepts]: Start accepts. Automaton has 19050 states and 29136 transitions. Word has length 29 [2022-11-21 16:31:48,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:31:48,394 INFO L495 AbstractCegarLoop]: Abstraction has 19050 states and 29136 transitions. [2022-11-21 16:31:48,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:48,394 INFO L276 IsEmpty]: Start isEmpty. Operand 19050 states and 29136 transitions. [2022-11-21 16:31:48,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 16:31:48,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:31:48,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:48,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:31:48,399 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:31:48,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:48,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1524477746, now seen corresponding path program 1 times [2022-11-21 16:31:48,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:48,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419814360] [2022-11-21 16:31:48,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:48,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:48,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:48,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419814360] [2022-11-21 16:31:48,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419814360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:48,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:48,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:31:48,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163703216] [2022-11-21 16:31:48,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:48,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:31:48,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:48,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:31:48,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:48,878 INFO L87 Difference]: Start difference. First operand 19050 states and 29136 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:50,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:31:50,398 INFO L93 Difference]: Finished difference Result 19078 states and 29154 transitions. [2022-11-21 16:31:50,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:31:50,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-21 16:31:50,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:31:50,511 INFO L225 Difference]: With dead ends: 19078 [2022-11-21 16:31:50,511 INFO L226 Difference]: Without dead ends: 19074 [2022-11-21 16:31:50,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:50,529 INFO L413 NwaCegarLoop]: 3891 mSDtfsCounter, 3860 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3860 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:31:50,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3860 Valid, 3900 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:31:50,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19074 states. [2022-11-21 16:31:52,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19074 to 19072. [2022-11-21 16:31:52,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19072 states, 13530 states have (on average 1.4362158167036216) internal successors, (19432), 13898 states have internal predecessors, (19432), 4857 states have call successors, (4857), 685 states have call predecessors, (4857), 684 states have return successors, (4852), 4692 states have call predecessors, (4852), 4852 states have call successors, (4852) [2022-11-21 16:31:52,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19072 states to 19072 states and 29141 transitions. [2022-11-21 16:31:52,884 INFO L78 Accepts]: Start accepts. Automaton has 19072 states and 29141 transitions. Word has length 26 [2022-11-21 16:31:52,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:31:52,885 INFO L495 AbstractCegarLoop]: Abstraction has 19072 states and 29141 transitions. [2022-11-21 16:31:52,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:52,885 INFO L276 IsEmpty]: Start isEmpty. Operand 19072 states and 29141 transitions. [2022-11-21 16:31:52,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-21 16:31:52,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:31:52,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:52,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:31:52,891 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:31:52,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:52,897 INFO L85 PathProgramCache]: Analyzing trace with hash 13075884, now seen corresponding path program 1 times [2022-11-21 16:31:52,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:52,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727985272] [2022-11-21 16:31:52,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:52,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:53,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:53,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727985272] [2022-11-21 16:31:53,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727985272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:53,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:53,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:31:53,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283092566] [2022-11-21 16:31:53,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:53,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:31:53,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:31:53,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:53,418 INFO L87 Difference]: Start difference. First operand 19072 states and 29141 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:55,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:31:55,902 INFO L93 Difference]: Finished difference Result 39363 states and 59732 transitions. [2022-11-21 16:31:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:31:55,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-21 16:31:55,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:31:56,016 INFO L225 Difference]: With dead ends: 39363 [2022-11-21 16:31:56,017 INFO L226 Difference]: Without dead ends: 20294 [2022-11-21 16:31:56,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:56,102 INFO L413 NwaCegarLoop]: 3959 mSDtfsCounter, 3746 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3746 SdHoareTripleChecker+Valid, 4254 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:31:56,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3746 Valid, 4254 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:31:56,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20294 states. [2022-11-21 16:31:58,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20294 to 20231. [2022-11-21 16:31:58,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20231 states, 14278 states have (on average 1.4172152962599804) internal successors, (20235), 14652 states have internal predecessors, (20235), 5044 states have call successors, (5044), 890 states have call predecessors, (5044), 908 states have return successors, (5092), 4900 states have call predecessors, (5092), 5036 states have call successors, (5092) [2022-11-21 16:31:58,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20231 states to 20231 states and 30371 transitions. [2022-11-21 16:31:58,667 INFO L78 Accepts]: Start accepts. Automaton has 20231 states and 30371 transitions. Word has length 27 [2022-11-21 16:31:58,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:31:58,668 INFO L495 AbstractCegarLoop]: Abstraction has 20231 states and 30371 transitions. [2022-11-21 16:31:58,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand 20231 states and 30371 transitions. [2022-11-21 16:31:58,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-21 16:31:58,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:31:58,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:58,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:31:58,672 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:31:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash 404263285, now seen corresponding path program 1 times [2022-11-21 16:31:58,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:58,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894331160] [2022-11-21 16:31:58,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:58,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:59,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:59,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:59,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894331160] [2022-11-21 16:31:59,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894331160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:59,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:59,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:31:59,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649106522] [2022-11-21 16:31:59,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:59,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:31:59,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:59,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:31:59,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:31:59,173 INFO L87 Difference]: Start difference. First operand 20231 states and 30371 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:01,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:01,375 INFO L93 Difference]: Finished difference Result 20233 states and 30372 transitions. [2022-11-21 16:32:01,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:32:01,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-21 16:32:01,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:01,482 INFO L225 Difference]: With dead ends: 20233 [2022-11-21 16:32:01,483 INFO L226 Difference]: Without dead ends: 20217 [2022-11-21 16:32:01,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:32:01,496 INFO L413 NwaCegarLoop]: 3889 mSDtfsCounter, 3864 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3864 SdHoareTripleChecker+Valid, 3889 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:01,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3864 Valid, 3889 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:01,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20217 states. [2022-11-21 16:32:03,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20217 to 20217. [2022-11-21 16:32:03,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20217 states, 14265 states have (on average 1.416403785488959) internal successors, (20205), 14638 states have internal predecessors, (20205), 5043 states have call successors, (5043), 890 states have call predecessors, (5043), 908 states have return successors, (5092), 4900 states have call predecessors, (5092), 5036 states have call successors, (5092) [2022-11-21 16:32:03,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20217 states to 20217 states and 30340 transitions. [2022-11-21 16:32:03,295 INFO L78 Accepts]: Start accepts. Automaton has 20217 states and 30340 transitions. Word has length 28 [2022-11-21 16:32:03,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:03,295 INFO L495 AbstractCegarLoop]: Abstraction has 20217 states and 30340 transitions. [2022-11-21 16:32:03,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:03,296 INFO L276 IsEmpty]: Start isEmpty. Operand 20217 states and 30340 transitions. [2022-11-21 16:32:03,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-21 16:32:03,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:03,316 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:03,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:32:03,316 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:32:03,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:03,317 INFO L85 PathProgramCache]: Analyzing trace with hash -36540386, now seen corresponding path program 1 times [2022-11-21 16:32:03,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:03,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276788239] [2022-11-21 16:32:03,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:03,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:03,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:32:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:03,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:32:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:04,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:32:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:04,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:32:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:04,056 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-21 16:32:04,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:04,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276788239] [2022-11-21 16:32:04,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276788239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:04,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:04,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:32:04,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52926096] [2022-11-21 16:32:04,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:04,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:32:04,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:04,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:32:04,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:32:04,059 INFO L87 Difference]: Start difference. First operand 20217 states and 30340 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-21 16:32:09,327 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 [] [2022-11-21 16:32:19,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:32:32,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:32:39,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:32:43,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:32:50,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:50,693 INFO L93 Difference]: Finished difference Result 22676 states and 33511 transitions. [2022-11-21 16:32:50,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:32:50,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 64 [2022-11-21 16:32:50,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:50,799 INFO L225 Difference]: With dead ends: 22676 [2022-11-21 16:32:50,799 INFO L226 Difference]: Without dead ends: 20740 [2022-11-21 16:32:50,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:32:50,817 INFO L413 NwaCegarLoop]: 1643 mSDtfsCounter, 2456 mSDsluCounter, 3714 mSDsCounter, 0 mSdLazyCounter, 6617 mSolverCounterSat, 1295 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2846 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 7913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1295 IncrementalHoareTripleChecker+Valid, 6617 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:50,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2846 Valid, 5357 Invalid, 7913 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1295 Valid, 6617 Invalid, 1 Unknown, 0 Unchecked, 44.0s Time] [2022-11-21 16:32:50,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20740 states. [2022-11-21 16:32:53,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20740 to 20093. [2022-11-21 16:32:53,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20093 states, 14191 states have (on average 1.4174476781058418) internal successors, (20115), 14564 states have internal predecessors, (20115), 5023 states have call successors, (5023), 880 states have call predecessors, (5023), 878 states have return successors, (5020), 4860 states have call predecessors, (5020), 5020 states have call successors, (5020) [2022-11-21 16:32:53,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20093 states to 20093 states and 30158 transitions. [2022-11-21 16:32:53,371 INFO L78 Accepts]: Start accepts. Automaton has 20093 states and 30158 transitions. Word has length 64 [2022-11-21 16:32:53,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:53,372 INFO L495 AbstractCegarLoop]: Abstraction has 20093 states and 30158 transitions. [2022-11-21 16:32:53,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-21 16:32:53,373 INFO L276 IsEmpty]: Start isEmpty. Operand 20093 states and 30158 transitions. [2022-11-21 16:32:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-21 16:32:53,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:53,415 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:53,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:32:53,416 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:32:53,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:53,417 INFO L85 PathProgramCache]: Analyzing trace with hash -604591183, now seen corresponding path program 1 times [2022-11-21 16:32:53,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:53,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116708938] [2022-11-21 16:32:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:53,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:53,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:32:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:53,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:32:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:53,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:32:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:53,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:32:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:54,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 16:32:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:54,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 16:32:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:54,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:32:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:54,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:32:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:54,068 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-21 16:32:54,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:54,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116708938] [2022-11-21 16:32:54,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116708938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:54,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:54,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:32:54,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79310192] [2022-11-21 16:32:54,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:54,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:32:54,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:54,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:32:54,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:32:54,073 INFO L87 Difference]: Start difference. First operand 20093 states and 30158 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-21 16:32:58,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:33:11,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:33:15,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:33:21,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:33:43,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:43,259 INFO L93 Difference]: Finished difference Result 61112 states and 91719 transitions. [2022-11-21 16:33:43,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:33:43,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2022-11-21 16:33:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:43,596 INFO L225 Difference]: With dead ends: 61112 [2022-11-21 16:33:43,596 INFO L226 Difference]: Without dead ends: 41022 [2022-11-21 16:33:43,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:33:43,687 INFO L413 NwaCegarLoop]: 2276 mSDtfsCounter, 6051 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 8701 mSolverCounterSat, 3493 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6608 SdHoareTripleChecker+Valid, 6810 SdHoareTripleChecker+Invalid, 12195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3493 IncrementalHoareTripleChecker+Valid, 8701 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.9s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:43,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6608 Valid, 6810 Invalid, 12195 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3493 Valid, 8701 Invalid, 1 Unknown, 0 Unchecked, 44.9s Time] [2022-11-21 16:33:43,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41022 states. [2022-11-21 16:33:47,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41022 to 39663. [2022-11-21 16:33:47,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39663 states, 28035 states have (on average 1.418262885678616) internal successors, (39761), 28780 states have internal predecessors, (39761), 9881 states have call successors, (9881), 1748 states have call predecessors, (9881), 1746 states have return successors, (9902), 9558 states have call predecessors, (9902), 9878 states have call successors, (9902) [2022-11-21 16:33:47,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39663 states to 39663 states and 59544 transitions. [2022-11-21 16:33:47,261 INFO L78 Accepts]: Start accepts. Automaton has 39663 states and 59544 transitions. Word has length 94 [2022-11-21 16:33:47,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:47,261 INFO L495 AbstractCegarLoop]: Abstraction has 39663 states and 59544 transitions. [2022-11-21 16:33:47,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-21 16:33:47,262 INFO L276 IsEmpty]: Start isEmpty. Operand 39663 states and 59544 transitions. [2022-11-21 16:33:47,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-21 16:33:47,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:47,360 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:47,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:33:47,361 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:33:47,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:47,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1434017527, now seen corresponding path program 1 times [2022-11-21 16:33:47,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:47,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627504498] [2022-11-21 16:33:47,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:47,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:47,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:33:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:47,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 16:33:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:47,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:33:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:47,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:33:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-21 16:33:48,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:48,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627504498] [2022-11-21 16:33:48,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627504498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:48,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:48,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:33:48,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985519523] [2022-11-21 16:33:48,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:48,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:33:48,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:48,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:33:48,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:33:48,018 INFO L87 Difference]: Start difference. First operand 39663 states and 59544 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-21 16:33:51,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:34:04,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:34:10,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:34:34,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:34:34,243 INFO L93 Difference]: Finished difference Result 99278 states and 149053 transitions. [2022-11-21 16:34:34,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:34:34,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 98 [2022-11-21 16:34:34,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:34:34,598 INFO L225 Difference]: With dead ends: 99278 [2022-11-21 16:34:34,599 INFO L226 Difference]: Without dead ends: 59618 [2022-11-21 16:34:34,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:34:34,794 INFO L413 NwaCegarLoop]: 2751 mSDtfsCounter, 5032 mSDsluCounter, 3481 mSDsCounter, 0 mSdLazyCounter, 6689 mSolverCounterSat, 1801 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 6232 SdHoareTripleChecker+Invalid, 8491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1801 IncrementalHoareTripleChecker+Valid, 6689 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:34:34,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5655 Valid, 6232 Invalid, 8491 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1801 Valid, 6689 Invalid, 1 Unknown, 0 Unchecked, 40.5s Time] [2022-11-21 16:34:34,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59618 states. [2022-11-21 16:34:39,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59618 to 59327. [2022-11-21 16:34:39,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59327 states, 41959 states have (on average 1.4182177840272647) internal successors, (59507), 43076 states have internal predecessors, (59507), 14751 states have call successors, (14751), 2618 states have call predecessors, (14751), 2616 states have return successors, (14796), 14268 states have call predecessors, (14796), 14748 states have call successors, (14796) [2022-11-21 16:34:39,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59327 states to 59327 states and 89054 transitions. [2022-11-21 16:34:39,890 INFO L78 Accepts]: Start accepts. Automaton has 59327 states and 89054 transitions. Word has length 98 [2022-11-21 16:34:39,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:34:39,890 INFO L495 AbstractCegarLoop]: Abstraction has 59327 states and 89054 transitions. [2022-11-21 16:34:39,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-21 16:34:39,891 INFO L276 IsEmpty]: Start isEmpty. Operand 59327 states and 89054 transitions. [2022-11-21 16:34:40,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-21 16:34:40,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:34:40,188 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:34:40,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:34:40,188 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:34:40,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:34:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1669957042, now seen corresponding path program 1 times [2022-11-21 16:34:40,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:34:40,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871033335] [2022-11-21 16:34:40,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:34:40,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:34:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:34:41,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:34:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:34:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:34:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:34:41,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:34:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:34:41,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-21 16:34:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:34:41,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 16:34:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:34:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-21 16:34:41,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:34:41,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871033335] [2022-11-21 16:34:41,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871033335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:34:41,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:34:41,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:34:41,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642261468] [2022-11-21 16:34:41,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:34:41,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:34:41,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:34:41,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:34:41,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:34:41,677 INFO L87 Difference]: Start difference. First operand 59327 states and 89054 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 16:34:46,422 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 [] [2022-11-21 16:35:02,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:35:19,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:35:25,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:35:46,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:35:50,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:35:51,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:36:01,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:36:01,087 INFO L93 Difference]: Finished difference Result 115919 states and 175293 transitions. [2022-11-21 16:36:01,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:36:01,087 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2022-11-21 16:36:01,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:36:01,374 INFO L225 Difference]: With dead ends: 115919 [2022-11-21 16:36:01,374 INFO L226 Difference]: Without dead ends: 56595 [2022-11-21 16:36:01,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:36:01,824 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 1871 mSDsluCounter, 8340 mSDsCounter, 0 mSdLazyCounter, 14300 mSolverCounterSat, 222 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2329 SdHoareTripleChecker+Valid, 9922 SdHoareTripleChecker+Invalid, 14523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 14300 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.9s IncrementalHoareTripleChecker+Time [2022-11-21 16:36:01,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2329 Valid, 9922 Invalid, 14523 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [222 Valid, 14300 Invalid, 1 Unknown, 0 Unchecked, 73.9s Time] [2022-11-21 16:36:01,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56595 states. [2022-11-21 16:36:07,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56595 to 56371. [2022-11-21 16:36:07,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56371 states, 40301 states have (on average 1.4229175454703358) internal successors, (57345), 41081 states have internal predecessors, (57345), 13933 states have call successors, (13933), 2137 states have call predecessors, (13933), 2136 states have return successors, (13980), 13764 states have call predecessors, (13980), 13932 states have call successors, (13980) [2022-11-21 16:36:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56371 states to 56371 states and 85258 transitions. [2022-11-21 16:36:07,312 INFO L78 Accepts]: Start accepts. Automaton has 56371 states and 85258 transitions. Word has length 101 [2022-11-21 16:36:07,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:36:07,313 INFO L495 AbstractCegarLoop]: Abstraction has 56371 states and 85258 transitions. [2022-11-21 16:36:07,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-21 16:36:07,314 INFO L276 IsEmpty]: Start isEmpty. Operand 56371 states and 85258 transitions. [2022-11-21 16:36:07,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-21 16:36:07,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:36:07,427 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:07,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:36:07,428 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:36:07,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:07,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1745805728, now seen corresponding path program 1 times [2022-11-21 16:36:07,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:07,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983691542] [2022-11-21 16:36:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:07,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:36:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:36:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:36:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 16:36:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 16:36:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:36:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:36:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:36:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:36:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 16:36:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:36:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:36:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:36:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:36:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:36:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:36:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:36:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-21 16:36:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:36:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:36:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:36:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-21 16:36:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:36:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:36:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-21 16:36:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:36:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:36:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-21 16:36:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-11-21 16:36:08,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:36:08,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983691542] [2022-11-21 16:36:08,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983691542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:36:08,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:36:08,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:36:08,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029570824] [2022-11-21 16:36:08,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:36:08,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:36:08,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:36:08,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:36:08,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:36:08,882 INFO L87 Difference]: Start difference. First operand 56371 states and 85258 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)