./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8 --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 1264b42ba0b5dcb83ee2e2b35dfcd5adbd8a3fb1fa3fff4328b672883ffa55c1 --- 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-e04fb08 [2022-11-16 11:18:05,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:18:05,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:18:05,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:18:05,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:18:05,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:18:05,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:18:05,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:18:05,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:18:05,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:18:05,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:18:05,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:18:05,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:18:05,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:18:05,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:18:05,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:18:05,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:18:05,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:18:05,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:18:05,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:18:05,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:18:05,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:18:05,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:18:05,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:18:05,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:18:05,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:18:05,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:18:05,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:18:05,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:18:05,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:18:05,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:18:05,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:18:05,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:18:05,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:18:05,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:18:05,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:18:05,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:18:05,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:18:05,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:18:05,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:18:05,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:18:05,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:18:05,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:18:05,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:18:05,491 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:18:05,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:18:05,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:18:05,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:18:05,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:18:05,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:18:05,520 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:18:05,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:18:05,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:18:05,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:18:05,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:18:05,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:18:05,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:18:05,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:18:05,525 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:18:05,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:18:05,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:18:05,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:18:05,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:18:05,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:18:05,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:18:05,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:18:05,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:18:05,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:18:05,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:18:05,531 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:18:05,532 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:18:05,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:18:05,533 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_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1264b42ba0b5dcb83ee2e2b35dfcd5adbd8a3fb1fa3fff4328b672883ffa55c1 [2022-11-16 11:18:05,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:18:05,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:18:05,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:18:05,875 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:18:05,876 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:18:05,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-11-16 11:18:05,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/data/dc28a986b/7806de2bc92548ff902e3cef0bd00f6c/FLAGae0bd2c59 [2022-11-16 11:18:07,020 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:18:07,021 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-11-16 11:18:07,070 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/data/dc28a986b/7806de2bc92548ff902e3cef0bd00f6c/FLAGae0bd2c59 [2022-11-16 11:18:07,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/data/dc28a986b/7806de2bc92548ff902e3cef0bd00f6c [2022-11-16 11:18:07,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:18:07,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:18:07,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:18:07,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:18:07,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:18:07,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:18:07" (1/1) ... [2022-11-16 11:18:07,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5622c351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:07, skipping insertion in model container [2022-11-16 11:18:07,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:18:07" (1/1) ... [2022-11-16 11:18:07,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:18:07,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:18:09,815 WARN L229 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_e9c43a84-e89b-4c57-8edb-0cef73349a82/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i[237227,237240] [2022-11-16 11:18:10,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:18:10,090 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:18:10,606 WARN L229 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_e9c43a84-e89b-4c57-8edb-0cef73349a82/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i[237227,237240] [2022-11-16 11:18:10,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:18:10,742 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:18:10,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10 WrapperNode [2022-11-16 11:18:10,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:18:10,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:18:10,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:18:10,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:18:10,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (1/1) ... [2022-11-16 11:18:10,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (1/1) ... [2022-11-16 11:18:11,087 INFO L138 Inliner]: procedures = 306, calls = 1751, calls flagged for inlining = 109, calls inlined = 100, statements flattened = 3796 [2022-11-16 11:18:11,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:18:11,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:18:11,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:18:11,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:18:11,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (1/1) ... [2022-11-16 11:18:11,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (1/1) ... [2022-11-16 11:18:11,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (1/1) ... [2022-11-16 11:18:11,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (1/1) ... [2022-11-16 11:18:11,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (1/1) ... [2022-11-16 11:18:11,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (1/1) ... [2022-11-16 11:18:11,328 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (1/1) ... [2022-11-16 11:18:11,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (1/1) ... [2022-11-16 11:18:11,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:18:11,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:18:11,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:18:11,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:18:11,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (1/1) ... [2022-11-16 11:18:11,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:18:11,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:18:11,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:18:11,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:18:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-16 11:18:11,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-16 11:18:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_memstick_host [2022-11-16 11:18:11,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_memstick_host [2022-11-16 11:18:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-16 11:18:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-16 11:18:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 11:18:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 11:18:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 11:18:11,484 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 11:18:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure msb_stop [2022-11-16 11:18:11,484 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_stop [2022-11-16 11:18:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure msb_get_zone_from_pba [2022-11-16 11:18:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_get_zone_from_pba [2022-11-16 11:18:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-16 11:18:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-16 11:18:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:18:11,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:18:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2022-11-16 11:18:11,486 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2022-11-16 11:18:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-16 11:18:11,487 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-16 11:18:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-16 11:18:11,487 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-16 11:18:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 11:18:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 11:18:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:18:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:18:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure msb_switch_to_parallel [2022-11-16 11:18:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_switch_to_parallel [2022-11-16 11:18:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 11:18:11,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 11:18:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:18:11,490 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:18:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure msb_validate_used_block_bitmap [2022-11-16 11:18:11,491 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_validate_used_block_bitmap [2022-11-16 11:18:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 11:18:11,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 11:18:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure msb_verify_block [2022-11-16 11:18:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_verify_block [2022-11-16 11:18:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 11:18:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 11:18:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-11-16 11:18:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-11-16 11:18:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_msb_disk_lock [2022-11-16 11:18:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_msb_disk_lock [2022-11-16 11:18:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:18:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_write [2022-11-16 11:18:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_write [2022-11-16 11:18:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 11:18:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-16 11:18:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-16 11:18:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure memstick_set_drvdata [2022-11-16 11:18:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure memstick_set_drvdata [2022-11-16 11:18:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request [2022-11-16 11:18:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request [2022-11-16 11:18:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:18:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-16 11:18:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-16 11:18:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure msb_invalidate_reg_window [2022-11-16 11:18:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_invalidate_reg_window [2022-11-16 11:18:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure msb_io_work [2022-11-16 11:18:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_io_work [2022-11-16 11:18:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 11:18:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 11:18:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2022-11-16 11:18:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2022-11-16 11:18:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:18:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure msb_erase_block [2022-11-16 11:18:11,503 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_erase_block [2022-11-16 11:18:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:18:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure memstick_get_drvdata [2022-11-16 11:18:11,503 INFO L138 BoogieDeclarations]: Found implementation of procedure memstick_get_drvdata [2022-11-16 11:18:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure msb_data_clear [2022-11-16 11:18:11,504 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_data_clear [2022-11-16 11:18:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 11:18:11,504 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 11:18:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-16 11:18:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-16 11:18:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 11:18:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 11:18:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-16 11:18:11,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-16 11:18:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 11:18:11,506 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 11:18:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure msb_read_bad_block_table [2022-11-16 11:18:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_read_bad_block_table [2022-11-16 11:18:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure msb_update_block [2022-11-16 11:18:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_update_block [2022-11-16 11:18:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_flush [2022-11-16 11:18:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_flush [2022-11-16 11:18:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_next [2022-11-16 11:18:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_next [2022-11-16 11:18:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-16 11:18:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-16 11:18:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_start [2022-11-16 11:18:11,511 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_start [2022-11-16 11:18:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure msb_run_state_machine [2022-11-16 11:18:11,511 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_run_state_machine [2022-11-16 11:18:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure msb_sg_copy [2022-11-16 11:18:11,512 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_sg_copy [2022-11-16 11:18:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-16 11:18:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-16 11:18:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 11:18:11,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 11:18:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_zero_bit [2022-11-16 11:18:11,514 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_zero_bit [2022-11-16 11:18:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_memstick_host [2022-11-16 11:18:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_memstick_host [2022-11-16 11:18:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:18:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-16 11:18:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-16 11:18:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure msb_get_zone_from_lba [2022-11-16 11:18:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_get_zone_from_lba [2022-11-16 11:18:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure msb_reset [2022-11-16 11:18:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_reset [2022-11-16 11:18:11,517 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_2 [2022-11-16 11:18:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_2 [2022-11-16 11:18:11,519 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2022-11-16 11:18:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2022-11-16 11:18:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 11:18:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 11:18:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-16 11:18:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-16 11:18:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure msb_bd_getgeo [2022-11-16 11:18:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_bd_getgeo [2022-11-16 11:18:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:18:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure msb_remove [2022-11-16 11:18:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_remove [2022-11-16 11:18:11,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:18:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:18:11,533 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-16 11:18:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-16 11:18:11,534 INFO L130 BoogieDeclarations]: Found specification of procedure msb_mark_bad [2022-11-16 11:18:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_mark_bad [2022-11-16 11:18:11,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 11:18:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 11:18:11,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:18:11,535 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2022-11-16 11:18:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2022-11-16 11:18:11,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 11:18:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 11:18:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:18:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure sg_nents [2022-11-16 11:18:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_nents [2022-11-16 11:18:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:18:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure msb_read_page [2022-11-16 11:18:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_read_page [2022-11-16 11:18:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-11-16 11:18:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-11-16 11:18:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_stop [2022-11-16 11:18:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_stop [2022-11-16 11:18:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure msb_set_overwrite_flag [2022-11-16 11:18:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_set_overwrite_flag [2022-11-16 11:18:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2022-11-16 11:18:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2022-11-16 11:18:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-16 11:18:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-16 11:18:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure msb_disk_release [2022-11-16 11:18:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_disk_release [2022-11-16 11:18:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure msb_mark_block_used [2022-11-16 11:18:11,541 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_mark_block_used [2022-11-16 11:18:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_discard [2022-11-16 11:18:11,541 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_discard [2022-11-16 11:18:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 11:18:11,541 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 11:18:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure msb_start [2022-11-16 11:18:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_start [2022-11-16 11:18:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-16 11:18:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-16 11:18:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-16 11:18:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-16 11:18:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-16 11:18:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-16 11:18:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure msb_init_card [2022-11-16 11:18:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_init_card [2022-11-16 11:18:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-11-16 11:18:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-11-16 11:18:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 11:18:11,545 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 11:18:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:18:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_one [2022-11-16 11:18:11,545 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_one [2022-11-16 11:18:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-16 11:18:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-16 11:18:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_msb_disk_lock [2022-11-16 11:18:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_msb_disk_lock [2022-11-16 11:18:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:18:11,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:18:12,455 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:18:12,462 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:18:12,861 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 11:18:16,725 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:18:16,746 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:18:16,746 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:18:16,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:18:16 BoogieIcfgContainer [2022-11-16 11:18:16,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:18:16,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:18:16,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:18:16,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:18:16,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:18:07" (1/3) ... [2022-11-16 11:18:16,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211b85a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:18:16, skipping insertion in model container [2022-11-16 11:18:16,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:10" (2/3) ... [2022-11-16 11:18:16,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211b85a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:18:16, skipping insertion in model container [2022-11-16 11:18:16,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:18:16" (3/3) ... [2022-11-16 11:18:16,764 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-11-16 11:18:16,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:18:16,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:18:16,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:18:16,924 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;@1614cd2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:18:16,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:18:16,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 1458 states, 1026 states have (on average 1.3771929824561404) internal successors, (1413), 1070 states have internal predecessors, (1413), 343 states have call successors, (343), 88 states have call predecessors, (343), 87 states have return successors, (337), 331 states have call predecessors, (337), 337 states have call successors, (337) [2022-11-16 11:18:16,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 11:18:16,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:16,961 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 11:18:16,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:18:16,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:16,973 INFO L85 PathProgramCache]: Analyzing trace with hash 677741040, now seen corresponding path program 1 times [2022-11-16 11:18:16,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:16,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518692315] [2022-11-16 11:18:16,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:16,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:17,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:18:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:17,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:17,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:17,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:18:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:18,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:18,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:18:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:18,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:18,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:18:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:18,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:18,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:18:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:18,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-16 11:18:18,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:18,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518692315] [2022-11-16 11:18:18,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518692315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:18,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:18,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:18,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782299206] [2022-11-16 11:18:18,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:18,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:18,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:18,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:18,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:18,212 INFO L87 Difference]: Start difference. First operand has 1458 states, 1026 states have (on average 1.3771929824561404) internal successors, (1413), 1070 states have internal predecessors, (1413), 343 states have call successors, (343), 88 states have call predecessors, (343), 87 states have return successors, (337), 331 states have call predecessors, (337), 337 states have call successors, (337) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-16 11:18:28,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:28,409 INFO L93 Difference]: Finished difference Result 4916 states and 7436 transitions. [2022-11-16 11:18:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:18:28,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 84 [2022-11-16 11:18:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:28,501 INFO L225 Difference]: With dead ends: 4916 [2022-11-16 11:18:28,502 INFO L226 Difference]: Without dead ends: 3412 [2022-11-16 11:18:28,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:18:28,536 INFO L413 NwaCegarLoop]: 1958 mSDtfsCounter, 5014 mSDsluCounter, 2562 mSDsCounter, 0 mSdLazyCounter, 2509 mSolverCounterSat, 3170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 4520 SdHoareTripleChecker+Invalid, 5679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3170 IncrementalHoareTripleChecker+Valid, 2509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:28,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5275 Valid, 4520 Invalid, 5679 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3170 Valid, 2509 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-11-16 11:18:28,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2022-11-16 11:18:28,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 2789. [2022-11-16 11:18:28,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 1967 states have (on average 1.364006100660905) internal successors, (2683), 2033 states have internal predecessors, (2683), 651 states have call successors, (651), 171 states have call predecessors, (651), 170 states have return successors, (642), 628 states have call predecessors, (642), 642 states have call successors, (642) [2022-11-16 11:18:28,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 3976 transitions. [2022-11-16 11:18:28,932 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 3976 transitions. Word has length 84 [2022-11-16 11:18:28,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:28,934 INFO L495 AbstractCegarLoop]: Abstraction has 2789 states and 3976 transitions. [2022-11-16 11:18:28,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-16 11:18:28,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 3976 transitions. [2022-11-16 11:18:28,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-16 11:18:28,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:28,949 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 11:18:28,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:18:28,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:18:28,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:28,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1149794604, now seen corresponding path program 1 times [2022-11-16 11:18:28,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:28,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41259679] [2022-11-16 11:18:28,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:28,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:18:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:18:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:18:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:18:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:18:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:29,377 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-16 11:18:29,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:29,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41259679] [2022-11-16 11:18:29,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41259679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:29,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:29,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:29,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187577813] [2022-11-16 11:18:29,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:29,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:29,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:29,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:29,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:29,382 INFO L87 Difference]: Start difference. First operand 2789 states and 3976 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:18:35,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:35,623 INFO L93 Difference]: Finished difference Result 3392 states and 5062 transitions. [2022-11-16 11:18:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:18:35,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-11-16 11:18:35,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:35,657 INFO L225 Difference]: With dead ends: 3392 [2022-11-16 11:18:35,658 INFO L226 Difference]: Without dead ends: 3389 [2022-11-16 11:18:35,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:18:35,664 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 3180 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 1294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3397 SdHoareTripleChecker+Valid, 3314 SdHoareTripleChecker+Invalid, 3087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1294 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:35,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3397 Valid, 3314 Invalid, 3087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1294 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-16 11:18:35,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3389 states. [2022-11-16 11:18:35,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3389 to 2788. [2022-11-16 11:18:35,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 1967 states have (on average 1.3634977122521605) internal successors, (2682), 2032 states have internal predecessors, (2682), 650 states have call successors, (650), 171 states have call predecessors, (650), 170 states have return successors, (642), 628 states have call predecessors, (642), 642 states have call successors, (642) [2022-11-16 11:18:35,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 3974 transitions. [2022-11-16 11:18:35,885 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 3974 transitions. Word has length 87 [2022-11-16 11:18:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:35,889 INFO L495 AbstractCegarLoop]: Abstraction has 2788 states and 3974 transitions. [2022-11-16 11:18:35,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:18:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 3974 transitions. [2022-11-16 11:18:35,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-16 11:18:35,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:35,896 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 11:18:35,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:18:35,897 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:18:35,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:35,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1284388764, now seen corresponding path program 1 times [2022-11-16 11:18:35,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:35,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232644276] [2022-11-16 11:18:35,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:35,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:18:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:18:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:18:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:18:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:18:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:36,342 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-16 11:18:36,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:36,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232644276] [2022-11-16 11:18:36,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232644276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:36,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:36,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:36,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740066499] [2022-11-16 11:18:36,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:36,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:36,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:36,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:36,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:36,346 INFO L87 Difference]: Start difference. First operand 2788 states and 3974 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:18:42,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:42,690 INFO L93 Difference]: Finished difference Result 3391 states and 5060 transitions. [2022-11-16 11:18:42,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:18:42,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 88 [2022-11-16 11:18:42,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:42,725 INFO L225 Difference]: With dead ends: 3391 [2022-11-16 11:18:42,726 INFO L226 Difference]: Without dead ends: 3388 [2022-11-16 11:18:42,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:18:42,732 INFO L413 NwaCegarLoop]: 1617 mSDtfsCounter, 3171 mSDsluCounter, 1693 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 1295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3396 SdHoareTripleChecker+Valid, 3310 SdHoareTripleChecker+Invalid, 3076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1295 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:42,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3396 Valid, 3310 Invalid, 3076 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1295 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-16 11:18:42,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2022-11-16 11:18:43,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 2787. [2022-11-16 11:18:43,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 1967 states have (on average 1.3629893238434163) internal successors, (2681), 2031 states have internal predecessors, (2681), 649 states have call successors, (649), 171 states have call predecessors, (649), 170 states have return successors, (642), 628 states have call predecessors, (642), 642 states have call successors, (642) [2022-11-16 11:18:43,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3972 transitions. [2022-11-16 11:18:43,046 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3972 transitions. Word has length 88 [2022-11-16 11:18:43,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:43,050 INFO L495 AbstractCegarLoop]: Abstraction has 2787 states and 3972 transitions. [2022-11-16 11:18:43,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:18:43,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3972 transitions. [2022-11-16 11:18:43,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-16 11:18:43,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:43,053 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 11:18:43,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:18:43,054 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:18:43,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:43,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1161835561, now seen corresponding path program 1 times [2022-11-16 11:18:43,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:43,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645997921] [2022-11-16 11:18:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:43,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:18:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:18:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:18:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:18:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:18:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:43,531 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-16 11:18:43,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:43,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645997921] [2022-11-16 11:18:43,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645997921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:43,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:43,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:43,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184467843] [2022-11-16 11:18:43,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:43,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:43,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:43,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:43,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:43,535 INFO L87 Difference]: Start difference. First operand 2787 states and 3972 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:18:50,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:50,031 INFO L93 Difference]: Finished difference Result 4868 states and 7165 transitions. [2022-11-16 11:18:50,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:18:50,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2022-11-16 11:18:50,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:50,072 INFO L225 Difference]: With dead ends: 4868 [2022-11-16 11:18:50,072 INFO L226 Difference]: Without dead ends: 4864 [2022-11-16 11:18:50,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:18:50,079 INFO L413 NwaCegarLoop]: 2113 mSDtfsCounter, 3992 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 2023 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4228 SdHoareTripleChecker+Valid, 3995 SdHoareTripleChecker+Invalid, 3972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2023 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:50,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4228 Valid, 3995 Invalid, 3972 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2023 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-16 11:18:50,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4864 states. [2022-11-16 11:18:50,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4864 to 4055. [2022-11-16 11:18:50,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4055 states, 2857 states have (on average 1.353167658382919) internal successors, (3866), 2941 states have internal predecessors, (3866), 923 states have call successors, (923), 275 states have call predecessors, (923), 274 states have return successors, (918), 898 states have call predecessors, (918), 918 states have call successors, (918) [2022-11-16 11:18:50,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4055 states to 4055 states and 5707 transitions. [2022-11-16 11:18:50,471 INFO L78 Accepts]: Start accepts. Automaton has 4055 states and 5707 transitions. Word has length 89 [2022-11-16 11:18:50,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:50,471 INFO L495 AbstractCegarLoop]: Abstraction has 4055 states and 5707 transitions. [2022-11-16 11:18:50,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:18:50,472 INFO L276 IsEmpty]: Start isEmpty. Operand 4055 states and 5707 transitions. [2022-11-16 11:18:50,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-16 11:18:50,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:50,481 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 11:18:50,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:18:50,482 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:18:50,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:50,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1657648697, now seen corresponding path program 1 times [2022-11-16 11:18:50,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:50,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600085545] [2022-11-16 11:18:50,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:50,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:18:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:18:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:18:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:18:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:18:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:50,865 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-16 11:18:50,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:50,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600085545] [2022-11-16 11:18:50,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600085545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:50,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:50,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:50,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37530126] [2022-11-16 11:18:50,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:50,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:50,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:50,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:50,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:50,870 INFO L87 Difference]: Start difference. First operand 4055 states and 5707 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:18:56,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:56,761 INFO L93 Difference]: Finished difference Result 4900 states and 7196 transitions. [2022-11-16 11:18:56,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:18:56,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2022-11-16 11:18:56,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:56,799 INFO L225 Difference]: With dead ends: 4900 [2022-11-16 11:18:56,799 INFO L226 Difference]: Without dead ends: 4896 [2022-11-16 11:18:56,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:18:56,805 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 2877 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 1227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3081 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 3047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1227 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:56,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3081 Valid, 3543 Invalid, 3047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1227 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-16 11:18:56,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4896 states. [2022-11-16 11:18:57,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4896 to 4087. [2022-11-16 11:18:57,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4087 states, 2877 states have (on average 1.3496697949252694) internal successors, (3883), 2959 states have internal predecessors, (3883), 929 states have call successors, (929), 281 states have call predecessors, (929), 280 states have return successors, (926), 906 states have call predecessors, (926), 926 states have call successors, (926) [2022-11-16 11:18:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4087 states to 4087 states and 5738 transitions. [2022-11-16 11:18:57,236 INFO L78 Accepts]: Start accepts. Automaton has 4087 states and 5738 transitions. Word has length 90 [2022-11-16 11:18:57,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:57,237 INFO L495 AbstractCegarLoop]: Abstraction has 4087 states and 5738 transitions. [2022-11-16 11:18:57,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:18:57,238 INFO L276 IsEmpty]: Start isEmpty. Operand 4087 states and 5738 transitions. [2022-11-16 11:18:57,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-16 11:18:57,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:57,240 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 11:18:57,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:18:57,240 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:18:57,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:57,241 INFO L85 PathProgramCache]: Analyzing trace with hash 152018138, now seen corresponding path program 1 times [2022-11-16 11:18:57,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:57,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772276413] [2022-11-16 11:18:57,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:57,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:18:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:18:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:18:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:18:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:18:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:18:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:18:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-16 11:18:57,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:57,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772276413] [2022-11-16 11:18:57,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772276413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:57,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:57,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:57,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739079942] [2022-11-16 11:18:57,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:57,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:57,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:57,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:57,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:57,606 INFO L87 Difference]: Start difference. First operand 4087 states and 5738 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:19:04,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:19:04,011 INFO L93 Difference]: Finished difference Result 4896 states and 7190 transitions. [2022-11-16 11:19:04,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:19:04,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2022-11-16 11:19:04,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:19:04,052 INFO L225 Difference]: With dead ends: 4896 [2022-11-16 11:19:04,052 INFO L226 Difference]: Without dead ends: 4880 [2022-11-16 11:19:04,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:19:04,059 INFO L413 NwaCegarLoop]: 1611 mSDtfsCounter, 2906 mSDsluCounter, 2546 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 1205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3126 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 3524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1205 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:19:04,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3126 Valid, 4157 Invalid, 3524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1205 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-16 11:19:04,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4880 states. [2022-11-16 11:19:04,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4880 to 4073. [2022-11-16 11:19:04,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4073 states, 2866 states have (on average 1.3496161898115842) internal successors, (3868), 2946 states have internal predecessors, (3868), 926 states have call successors, (926), 281 states have call predecessors, (926), 280 states have return successors, (924), 905 states have call predecessors, (924), 924 states have call successors, (924) [2022-11-16 11:19:04,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 5718 transitions. [2022-11-16 11:19:04,511 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 5718 transitions. Word has length 91 [2022-11-16 11:19:04,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:19:04,512 INFO L495 AbstractCegarLoop]: Abstraction has 4073 states and 5718 transitions. [2022-11-16 11:19:04,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:19:04,512 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 5718 transitions. [2022-11-16 11:19:04,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-16 11:19:04,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:19:04,520 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 11:19:04,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:19:04,520 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:19:04,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:04,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1822612383, now seen corresponding path program 1 times [2022-11-16 11:19:04,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:04,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076455301] [2022-11-16 11:19:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:04,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:19:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:19:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:19:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:19:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:19:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:19:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:19:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 11:19:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-16 11:19:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:05,242 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-16 11:19:05,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:19:05,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076455301] [2022-11-16 11:19:05,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076455301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:19:05,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:19:05,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:19:05,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261658290] [2022-11-16 11:19:05,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:19:05,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:19:05,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:19:05,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:19:05,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:19:05,246 INFO L87 Difference]: Start difference. First operand 4073 states and 5718 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 11:19:22,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:19:22,225 INFO L93 Difference]: Finished difference Result 11362 states and 16428 transitions. [2022-11-16 11:19:22,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:19:22,226 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 144 [2022-11-16 11:19:22,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:19:22,279 INFO L225 Difference]: With dead ends: 11362 [2022-11-16 11:19:22,280 INFO L226 Difference]: Without dead ends: 7309 [2022-11-16 11:19:22,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:19:22,307 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 7187 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 9384 mSolverCounterSat, 4092 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7507 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 13476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4092 IncrementalHoareTripleChecker+Valid, 9384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:19:22,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7507 Valid, 1547 Invalid, 13476 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4092 Valid, 9384 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2022-11-16 11:19:22,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7309 states. [2022-11-16 11:19:22,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7309 to 6091. [2022-11-16 11:19:23,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6091 states, 4289 states have (on average 1.3504313359757518) internal successors, (5792), 4409 states have internal predecessors, (5792), 1381 states have call successors, (1381), 421 states have call predecessors, (1381), 420 states have return successors, (1379), 1350 states have call predecessors, (1379), 1379 states have call successors, (1379) [2022-11-16 11:19:23,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6091 states to 6091 states and 8552 transitions. [2022-11-16 11:19:23,045 INFO L78 Accepts]: Start accepts. Automaton has 6091 states and 8552 transitions. Word has length 144 [2022-11-16 11:19:23,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:19:23,046 INFO L495 AbstractCegarLoop]: Abstraction has 6091 states and 8552 transitions. [2022-11-16 11:19:23,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 11:19:23,047 INFO L276 IsEmpty]: Start isEmpty. Operand 6091 states and 8552 transitions. [2022-11-16 11:19:23,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-16 11:19:23,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:19:23,054 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 11:19:23,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:19:23,055 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:19:23,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:23,055 INFO L85 PathProgramCache]: Analyzing trace with hash -4653232, now seen corresponding path program 1 times [2022-11-16 11:19:23,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:23,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831953000] [2022-11-16 11:19:23,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:23,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:19:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:19:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:19:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:19:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:19:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:19:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:19:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 11:19:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-16 11:19:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:23,634 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-16 11:19:23,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:19:23,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831953000] [2022-11-16 11:19:23,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831953000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:19:23,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:19:23,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:19:23,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70525541] [2022-11-16 11:19:23,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:19:23,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:19:23,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:19:23,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:19:23,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:19:23,640 INFO L87 Difference]: Start difference. First operand 6091 states and 8552 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 11:19:31,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:19:31,367 INFO L93 Difference]: Finished difference Result 13299 states and 19520 transitions. [2022-11-16 11:19:31,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:19:31,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 145 [2022-11-16 11:19:31,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:19:31,418 INFO L225 Difference]: With dead ends: 13299 [2022-11-16 11:19:31,418 INFO L226 Difference]: Without dead ends: 7228 [2022-11-16 11:19:31,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:19:31,474 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 4215 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 3159 mSolverCounterSat, 3038 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4289 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 6197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3038 IncrementalHoareTripleChecker+Valid, 3159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:19:31,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4289 Valid, 909 Invalid, 6197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3038 Valid, 3159 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-16 11:19:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7228 states. [2022-11-16 11:19:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7228 to 6055. [2022-11-16 11:19:32,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6055 states, 4253 states have (on average 1.281213261227369) internal successors, (5449), 4373 states have internal predecessors, (5449), 1381 states have call successors, (1381), 421 states have call predecessors, (1381), 420 states have return successors, (1379), 1350 states have call predecessors, (1379), 1379 states have call successors, (1379) [2022-11-16 11:19:32,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6055 states to 6055 states and 8209 transitions. [2022-11-16 11:19:32,223 INFO L78 Accepts]: Start accepts. Automaton has 6055 states and 8209 transitions. Word has length 145 [2022-11-16 11:19:32,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:19:32,224 INFO L495 AbstractCegarLoop]: Abstraction has 6055 states and 8209 transitions. [2022-11-16 11:19:32,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 11:19:32,224 INFO L276 IsEmpty]: Start isEmpty. Operand 6055 states and 8209 transitions. [2022-11-16 11:19:32,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-16 11:19:32,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:19:32,232 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 11:19:32,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:19:32,233 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:19:32,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:32,234 INFO L85 PathProgramCache]: Analyzing trace with hash 418048594, now seen corresponding path program 1 times [2022-11-16 11:19:32,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:32,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133709026] [2022-11-16 11:19:32,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:32,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:19:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:19:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:19:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:19:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:19:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:19:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:19:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 11:19:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-16 11:19:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-16 11:19:32,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:19:32,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133709026] [2022-11-16 11:19:32,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133709026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:19:32,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:19:32,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:19:32,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865691843] [2022-11-16 11:19:32,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:19:32,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:19:32,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:19:32,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:19:32,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:19:32,743 INFO L87 Difference]: Start difference. First operand 6055 states and 8209 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 11:19:41,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:19:41,848 INFO L93 Difference]: Finished difference Result 7230 states and 10275 transitions. [2022-11-16 11:19:41,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:19:41,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 145 [2022-11-16 11:19:41,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:19:41,887 INFO L225 Difference]: With dead ends: 7230 [2022-11-16 11:19:41,888 INFO L226 Difference]: Without dead ends: 7227 [2022-11-16 11:19:41,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:19:41,898 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 2580 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 5808 mSolverCounterSat, 1412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 7220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 5808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:19:41,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 1456 Invalid, 7220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1412 Valid, 5808 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-11-16 11:19:41,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7227 states. [2022-11-16 11:19:42,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7227 to 6054. [2022-11-16 11:19:42,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6054 states, 4253 states have (on average 1.2805078767928522) internal successors, (5446), 4372 states have internal predecessors, (5446), 1380 states have call successors, (1380), 421 states have call predecessors, (1380), 420 states have return successors, (1379), 1350 states have call predecessors, (1379), 1379 states have call successors, (1379) [2022-11-16 11:19:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6054 states to 6054 states and 8205 transitions. [2022-11-16 11:19:42,689 INFO L78 Accepts]: Start accepts. Automaton has 6054 states and 8205 transitions. Word has length 145 [2022-11-16 11:19:42,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:19:42,690 INFO L495 AbstractCegarLoop]: Abstraction has 6054 states and 8205 transitions. [2022-11-16 11:19:42,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 11:19:42,691 INFO L276 IsEmpty]: Start isEmpty. Operand 6054 states and 8205 transitions. [2022-11-16 11:19:42,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-16 11:19:42,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:19:42,702 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:19:42,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:19:42,703 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:19:42,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:42,703 INFO L85 PathProgramCache]: Analyzing trace with hash 162515662, now seen corresponding path program 1 times [2022-11-16 11:19:42,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:42,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821472912] [2022-11-16 11:19:42,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:42,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:42,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:19:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:42,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:42,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:42,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:19:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:19:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:19:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:19:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:19:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 11:19:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 11:19:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 11:19:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:19:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-16 11:19:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 11:19:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:19:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:19:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:19:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 11:19:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 11:19:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:43,272 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-16 11:19:43,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:19:43,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821472912] [2022-11-16 11:19:43,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821472912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:19:43,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:19:43,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:19:43,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73866305] [2022-11-16 11:19:43,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:19:43,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:19:43,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:19:43,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:19:43,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:19:43,275 INFO L87 Difference]: Start difference. First operand 6054 states and 8205 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 11:20:03,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:20:03,252 INFO L93 Difference]: Finished difference Result 16768 states and 23444 transitions. [2022-11-16 11:20:03,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:20:03,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 162 [2022-11-16 11:20:03,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:20:03,309 INFO L225 Difference]: With dead ends: 16768 [2022-11-16 11:20:03,310 INFO L226 Difference]: Without dead ends: 10734 [2022-11-16 11:20:03,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:20:03,338 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 5109 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 9502 mSolverCounterSat, 3077 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5347 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 12579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3077 IncrementalHoareTripleChecker+Valid, 9502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:20:03,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5347 Valid, 1985 Invalid, 12579 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3077 Valid, 9502 Invalid, 0 Unknown, 0 Unchecked, 17.5s Time] [2022-11-16 11:20:03,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10734 states. [2022-11-16 11:20:04,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10734 to 8428. [2022-11-16 11:20:04,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8428 states, 5986 states have (on average 1.2903441363180754) internal successors, (7724), 6145 states have internal predecessors, (7724), 1837 states have call successors, (1837), 605 states have call predecessors, (1837), 604 states have return successors, (1836), 1795 states have call predecessors, (1836), 1836 states have call successors, (1836) [2022-11-16 11:20:04,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8428 states to 8428 states and 11397 transitions. [2022-11-16 11:20:04,733 INFO L78 Accepts]: Start accepts. Automaton has 8428 states and 11397 transitions. Word has length 162 [2022-11-16 11:20:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:20:04,733 INFO L495 AbstractCegarLoop]: Abstraction has 8428 states and 11397 transitions. [2022-11-16 11:20:04,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 11:20:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 8428 states and 11397 transitions. [2022-11-16 11:20:04,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-16 11:20:04,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:20:04,762 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:20:04,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:20:04,763 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:20:04,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:04,763 INFO L85 PathProgramCache]: Analyzing trace with hash 570031201, now seen corresponding path program 1 times [2022-11-16 11:20:04,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:04,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076575015] [2022-11-16 11:20:04,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:04,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:20:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:20:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:20:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:20:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:20:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:20:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:20:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 11:20:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 11:20:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 11:20:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-16 11:20:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 11:20:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-16 11:20:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:20:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:20:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 11:20:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 11:20:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-16 11:20:05,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:05,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076575015] [2022-11-16 11:20:05,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076575015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:05,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:20:05,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:20:05,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415505222] [2022-11-16 11:20:05,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:05,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:20:05,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:05,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:20:05,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:20:05,477 INFO L87 Difference]: Start difference. First operand 8428 states and 11397 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-16 11:20:27,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:20:27,420 INFO L93 Difference]: Finished difference Result 22435 states and 31283 transitions. [2022-11-16 11:20:27,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:20:27,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 209 [2022-11-16 11:20:27,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:20:27,568 INFO L225 Difference]: With dead ends: 22435 [2022-11-16 11:20:27,568 INFO L226 Difference]: Without dead ends: 14037 [2022-11-16 11:20:27,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:20:27,589 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 4455 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 11362 mSolverCounterSat, 3403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4714 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 14765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3403 IncrementalHoareTripleChecker+Valid, 11362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:20:27,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4714 Valid, 1892 Invalid, 14765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3403 Valid, 11362 Invalid, 0 Unknown, 0 Unchecked, 18.7s Time] [2022-11-16 11:20:27,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14037 states. [2022-11-16 11:20:29,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14037 to 10880. [2022-11-16 11:20:29,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10880 states, 7786 states have (on average 1.294759825327511) internal successors, (10081), 7985 states have internal predecessors, (10081), 2292 states have call successors, (2292), 802 states have call predecessors, (2292), 801 states have return successors, (2291), 2238 states have call predecessors, (2291), 2291 states have call successors, (2291) [2022-11-16 11:20:29,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10880 states to 10880 states and 14664 transitions. [2022-11-16 11:20:29,110 INFO L78 Accepts]: Start accepts. Automaton has 10880 states and 14664 transitions. Word has length 209 [2022-11-16 11:20:29,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:20:29,111 INFO L495 AbstractCegarLoop]: Abstraction has 10880 states and 14664 transitions. [2022-11-16 11:20:29,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-16 11:20:29,111 INFO L276 IsEmpty]: Start isEmpty. Operand 10880 states and 14664 transitions. [2022-11-16 11:20:29,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-16 11:20:29,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:20:29,153 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:20:29,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:20:29,154 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:20:29,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:29,155 INFO L85 PathProgramCache]: Analyzing trace with hash 766736982, now seen corresponding path program 1 times [2022-11-16 11:20:29,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:29,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131365461] [2022-11-16 11:20:29,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:29,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:20:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:20:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:20:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:20:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:20:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:20:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:20:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 11:20:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-16 11:20:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-16 11:20:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 11:20:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-16 11:20:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 11:20:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-16 11:20:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:20:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:20:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 11:20:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 11:20:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:29,770 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-16 11:20:29,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:29,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131365461] [2022-11-16 11:20:29,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131365461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:29,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:20:29,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:20:29,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129962540] [2022-11-16 11:20:29,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:29,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:20:29,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:29,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:20:29,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:20:29,774 INFO L87 Difference]: Start difference. First operand 10880 states and 14664 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-16 11:20:51,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:20:51,175 INFO L93 Difference]: Finished difference Result 29479 states and 41100 transitions. [2022-11-16 11:20:51,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:20:51,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 237 [2022-11-16 11:20:51,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:20:51,275 INFO L225 Difference]: With dead ends: 29479 [2022-11-16 11:20:51,275 INFO L226 Difference]: Without dead ends: 18629 [2022-11-16 11:20:51,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:20:51,316 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 4965 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 12785 mSolverCounterSat, 4028 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5202 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 16813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4028 IncrementalHoareTripleChecker+Valid, 12785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:20:51,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5202 Valid, 2601 Invalid, 16813 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4028 Valid, 12785 Invalid, 0 Unknown, 0 Unchecked, 17.4s Time] [2022-11-16 11:20:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18629 states. [2022-11-16 11:20:53,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18629 to 10886. [2022-11-16 11:20:53,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10886 states, 7792 states have (on average 1.2945328542094456) internal successors, (10087), 7991 states have internal predecessors, (10087), 2292 states have call successors, (2292), 802 states have call predecessors, (2292), 801 states have return successors, (2291), 2238 states have call predecessors, (2291), 2291 states have call successors, (2291) [2022-11-16 11:20:53,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10886 states to 10886 states and 14670 transitions. [2022-11-16 11:20:53,174 INFO L78 Accepts]: Start accepts. Automaton has 10886 states and 14670 transitions. Word has length 237 [2022-11-16 11:20:53,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:20:53,175 INFO L495 AbstractCegarLoop]: Abstraction has 10886 states and 14670 transitions. [2022-11-16 11:20:53,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-16 11:20:53,175 INFO L276 IsEmpty]: Start isEmpty. Operand 10886 states and 14670 transitions. [2022-11-16 11:20:53,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-11-16 11:20:53,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:20:53,229 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:20:53,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:20:53,229 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:20:53,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:53,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2132118350, now seen corresponding path program 1 times [2022-11-16 11:20:53,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:53,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200527536] [2022-11-16 11:20:53,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:53,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:20:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:20:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:20:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:20:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:20:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:20:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:53,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:20:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 11:20:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-16 11:20:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-16 11:20:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 11:20:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 11:20:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 11:20:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:20:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-16 11:20:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 11:20:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:20:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:20:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:20:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-16 11:20:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-16 11:20:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-11-16 11:20:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-16 11:20:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-16 11:20:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-11-16 11:20:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-11-16 11:20:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:20:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:20:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:20:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 11:20:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 11:20:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-16 11:20:54,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:54,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200527536] [2022-11-16 11:20:54,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200527536] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:20:54,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641317658] [2022-11-16 11:20:54,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:54,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:20:54,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:20:54,439 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:20:54,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:20:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:55,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 2961 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:20:55,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:20:55,649 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-16 11:20:55,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:20:55,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641317658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:55,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:20:55,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-11-16 11:20:55,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828490347] [2022-11-16 11:20:55,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:55,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:20:55,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:55,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:20:55,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:20:55,662 INFO L87 Difference]: Start difference. First operand 10886 states and 14670 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-16 11:20:57,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:20:57,629 INFO L93 Difference]: Finished difference Result 24537 states and 33067 transitions. [2022-11-16 11:20:57,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:20:57,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 316 [2022-11-16 11:20:57,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:20:57,677 INFO L225 Difference]: With dead ends: 24537 [2022-11-16 11:20:57,677 INFO L226 Difference]: Without dead ends: 13681 [2022-11-16 11:20:57,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:20:57,710 INFO L413 NwaCegarLoop]: 2207 mSDtfsCounter, 1846 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 3974 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:20:57,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 3974 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:20:57,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13681 states. [2022-11-16 11:20:59,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13681 to 13681. [2022-11-16 11:20:59,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13681 states, 9789 states have (on average 1.2962508938604556) internal successors, (12689), 10048 states have internal predecessors, (12689), 2869 states have call successors, (2869), 1023 states have call predecessors, (2869), 1022 states have return successors, (2868), 2803 states have call predecessors, (2868), 2868 states have call successors, (2868) [2022-11-16 11:20:59,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13681 states to 13681 states and 18426 transitions. [2022-11-16 11:20:59,333 INFO L78 Accepts]: Start accepts. Automaton has 13681 states and 18426 transitions. Word has length 316 [2022-11-16 11:20:59,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:20:59,334 INFO L495 AbstractCegarLoop]: Abstraction has 13681 states and 18426 transitions. [2022-11-16 11:20:59,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-16 11:20:59,335 INFO L276 IsEmpty]: Start isEmpty. Operand 13681 states and 18426 transitions. [2022-11-16 11:20:59,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-16 11:20:59,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:20:59,432 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:20:59,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:20:59,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9c43a84-e89b-4c57-8edb-0cef73349a82/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 11:20:59,644 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:20:59,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:59,645 INFO L85 PathProgramCache]: Analyzing trace with hash -571666972, now seen corresponding path program 1 times [2022-11-16 11:20:59,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:59,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113687058] [2022-11-16 11:20:59,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:59,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:21:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:21:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:21:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:21:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:21:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:21:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:21:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:21:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:21:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:21:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:21:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 11:21:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-16 11:21:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-16 11:21:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 11:21:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 11:21:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 11:21:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:21:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-16 11:21:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 11:21:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:21:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:21:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:21:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-16 11:21:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:00,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-16 11:21:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:21:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-16 11:21:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:21:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 11:21:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 11:21:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-16 11:21:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-16 11:21:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-16 11:21:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-16 11:21:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-16 11:21:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-11-16 11:21:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-11-16 11:21:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-11-16 11:21:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:21:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:21:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:21:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 11:21:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 11:21:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:01,268 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-16 11:21:01,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:01,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113687058] [2022-11-16 11:21:01,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113687058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:01,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:01,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 11:21:01,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491730806] [2022-11-16 11:21:01,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:01,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:21:01,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:01,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:21:01,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:21:01,274 INFO L87 Difference]: Start difference. First operand 13681 states and 18426 transitions. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 5 states have internal predecessors, (176), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2022-11-16 11:21:55,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:21:55,223 INFO L93 Difference]: Finished difference Result 80294 states and 120854 transitions. [2022-11-16 11:21:55,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-16 11:21:55,225 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 5 states have internal predecessors, (176), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) Word has length 382 [2022-11-16 11:21:55,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:21:55,720 INFO L225 Difference]: With dead ends: 80294 [2022-11-16 11:21:55,720 INFO L226 Difference]: Without dead ends: 66643 [2022-11-16 11:21:55,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=540, Invalid=2010, Unknown=0, NotChecked=0, Total=2550 [2022-11-16 11:21:55,805 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 17689 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 21956 mSolverCounterSat, 17256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17868 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 39212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 17256 IncrementalHoareTripleChecker+Valid, 21956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:21:55,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17868 Valid, 1923 Invalid, 39212 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [17256 Valid, 21956 Invalid, 0 Unknown, 0 Unchecked, 38.6s Time] [2022-11-16 11:21:55,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66643 states. [2022-11-16 11:22:04,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66643 to 46997. [2022-11-16 11:22:04,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46997 states, 33517 states have (on average 1.3003252081033505) internal successors, (43583), 34548 states have internal predecessors, (43583), 10319 states have call successors, (10319), 2837 states have call predecessors, (10319), 3160 states have return successors, (12388), 10344 states have call predecessors, (12388), 10318 states have call successors, (12388) [2022-11-16 11:22:05,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46997 states to 46997 states and 66290 transitions. [2022-11-16 11:22:05,046 INFO L78 Accepts]: Start accepts. Automaton has 46997 states and 66290 transitions. Word has length 382 [2022-11-16 11:22:05,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:22:05,047 INFO L495 AbstractCegarLoop]: Abstraction has 46997 states and 66290 transitions. [2022-11-16 11:22:05,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 5 states have internal predecessors, (176), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2022-11-16 11:22:05,048 INFO L276 IsEmpty]: Start isEmpty. Operand 46997 states and 66290 transitions. [2022-11-16 11:22:05,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-11-16 11:22:05,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:22:05,267 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:22:05,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:22:05,268 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:22:05,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:22:05,269 INFO L85 PathProgramCache]: Analyzing trace with hash 410047053, now seen corresponding path program 1 times [2022-11-16 11:22:05,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:22:05,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217371003] [2022-11-16 11:22:05,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:22:05,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:22:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:22:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:22:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:22:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:22:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:22:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:22:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:22:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:22:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:22:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:22:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:22:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 11:22:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-16 11:22:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-16 11:22:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 11:22:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 11:22:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 11:22:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:22:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-16 11:22:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 11:22:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:22:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:22:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:22:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-16 11:22:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-16 11:22:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:22:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-16 11:22:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:22:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 11:22:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 11:22:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:22:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 11:22:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-11-16 11:22:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-11-16 11:22:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-11-16 11:22:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-16 11:22:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-11-16 11:22:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:06,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-11-16 11:22:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:07,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:22:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:07,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:22:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:07,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:22:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:07,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 11:22:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:07,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 11:22:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:07,061 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-16 11:22:07,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:22:07,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217371003] [2022-11-16 11:22:07,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217371003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:22:07,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:22:07,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 11:22:07,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209298528] [2022-11-16 11:22:07,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:22:07,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:22:07,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:22:07,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:22:07,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:22:07,068 INFO L87 Difference]: Start difference. First operand 46997 states and 66290 transitions. Second operand has 16 states, 16 states have (on average 11.0625) internal successors, (177), 5 states have internal predecessors, (177), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47)