./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN --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 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 --- 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-6b4ec56 [2022-11-20 10:49:30,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:49:30,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:49:31,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:49:31,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:49:31,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:49:31,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:49:31,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:49:31,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:49:31,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:49:31,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:49:31,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:49:31,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:49:31,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:49:31,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:49:31,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:49:31,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:49:31,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:49:31,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:49:31,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:49:31,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:49:31,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:49:31,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:49:31,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:49:31,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:49:31,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:49:31,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:49:31,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:49:31,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:49:31,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:49:31,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:49:31,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:49:31,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:49:31,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:49:31,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:49:31,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:49:31,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:49:31,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:49:31,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:49:31,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:49:31,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:49:31,049 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:49:31,073 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:49:31,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:49:31,074 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:49:31,074 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:49:31,075 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:49:31,076 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:49:31,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:49:31,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:49:31,077 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:49:31,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:49:31,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:49:31,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:49:31,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:49:31,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:49:31,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:49:31,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:49:31,079 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:49:31,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:49:31,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:49:31,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:49:31,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:49:31,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:49:31,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:49:31,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:49:31,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:49:31,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:49:31,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:49:31,082 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:49:31,082 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:49:31,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:49:31,083 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_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 [2022-11-20 10:49:31,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:49:31,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:49:31,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:49:31,363 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:49:31,364 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:49:31,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:49:34,696 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:49:35,457 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:49:35,458 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:49:35,519 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/data/a09e1e708/27b0d42bd7134ac2aec0ce24bd6ea447/FLAG6a990eab1 [2022-11-20 10:49:35,540 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/data/a09e1e708/27b0d42bd7134ac2aec0ce24bd6ea447 [2022-11-20 10:49:35,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:49:35,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:49:35,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:49:35,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:49:35,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:49:35,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:35" (1/1) ... [2022-11-20 10:49:35,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5bc570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35, skipping insertion in model container [2022-11-20 10:49:35,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:35" (1/1) ... [2022-11-20 10:49:35,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:49:35,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:49:38,103 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2022-11-20 10:49:38,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:49:38,176 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:49:38,636 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2022-11-20 10:49:38,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:49:38,810 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:49:38,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38 WrapperNode [2022-11-20 10:49:38,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:49:38,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:49:38,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:49:38,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:49:38,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:38,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:39,149 INFO L138 Inliner]: procedures = 258, calls = 1814, calls flagged for inlining = 103, calls inlined = 99, statements flattened = 4590 [2022-11-20 10:49:39,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:49:39,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:49:39,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:49:39,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:49:39,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:39,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:39,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:39,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:39,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:39,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:39,431 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:39,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:39,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:49:39,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:49:39,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:49:39,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:49:39,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:39,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:49:39,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:49:39,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:49:39,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:49:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 10:49:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 10:49:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_12 [2022-11-20 10:49:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_12 [2022-11-20 10:49:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:49:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:49:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:49:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:49:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:49:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:49:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_delete [2022-11-20 10:49:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_delete [2022-11-20 10:49:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2022-11-20 10:49:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2022-11-20 10:49:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2022-11-20 10:49:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2022-11-20 10:49:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-20 10:49:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-20 10:49:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-20 10:49:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-20 10:49:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:49:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:49:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-20 10:49:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-20 10:49:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-20 10:49:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-20 10:49:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2022-11-20 10:49:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2022-11-20 10:49:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_50 [2022-11-20 10:49:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_50 [2022-11-20 10:49:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 10:49:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 10:49:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:49:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:49:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:49:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:49:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:49:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:49:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_detect_change [2022-11-20 10:49:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_detect_change [2022-11-20 10:49:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-20 10:49:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-20 10:49:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_cancel [2022-11-20 10:49:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_cancel [2022-11-20 10:49:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-20 10:49:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-20 10:49:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2022-11-20 10:49:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2022-11-20 10:49:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2022-11-20 10:49:39,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2022-11-20 10:49:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2022-11-20 10:49:39,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2022-11-20 10:49:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:49:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2022-11-20 10:49:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2022-11-20 10:49:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 10:49:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 10:49:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-11-20 10:49:39,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-11-20 10:49:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:49:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2022-11-20 10:49:39,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2022-11-20 10:49:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 10:49:39,662 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 10:49:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2022-11-20 10:49:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2022-11-20 10:49:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_disconnect [2022-11-20 10:49:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_disconnect [2022-11-20 10:49:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-11-20 10:49:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-11-20 10:49:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2022-11-20 10:49:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2022-11-20 10:49:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:49:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:49:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-20 10:49:39,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-20 10:49:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 10:49:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 10:49:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2022-11-20 10:49:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2022-11-20 10:49:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 10:49:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 10:49:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 10:49:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 10:49:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure add_offloaded_reg [2022-11-20 10:49:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure add_offloaded_reg [2022-11-20 10:49:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-20 10:49:39,669 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-20 10:49:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2022-11-20 10:49:39,669 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2022-11-20 10:49:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_to_multiple_of_64 [2022-11-20 10:49:39,670 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_to_multiple_of_64 [2022-11-20 10:49:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-20 10:49:39,670 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-20 10:49:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-20 10:49:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2022-11-20 10:49:39,671 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2022-11-20 10:49:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 10:49:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-11-20 10:49:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-11-20 10:49:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2022-11-20 10:49:39,673 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2022-11-20 10:49:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-20 10:49:39,673 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-20 10:49:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:49:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-20 10:49:39,674 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-20 10:49:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:49:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:49:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-20 10:49:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-20 10:49:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2022-11-20 10:49:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2022-11-20 10:49:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-20 10:49:39,676 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-20 10:49:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:49:39,676 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:49:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-20 10:49:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-20 10:49:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:49:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_response_error [2022-11-20 10:49:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_response_error [2022-11-20 10:49:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2022-11-20 10:49:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2022-11-20 10:49:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_free_host [2022-11-20 10:49:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_free_host [2022-11-20 10:49:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:49:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:49:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2022-11-20 10:49:39,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2022-11-20 10:49:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 10:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 10:49:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:49:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_queue_poll_work [2022-11-20 10:49:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_queue_poll_work [2022-11-20 10:49:39,693 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-11-20 10:49:39,693 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-11-20 10:49:39,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 10:49:39,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 10:49:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-20 10:49:39,694 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-20 10:49:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2022-11-20 10:49:39,694 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2022-11-20 10:49:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:49:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_to_buffer [2022-11-20 10:49:39,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_to_buffer [2022-11-20 10:49:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_9 [2022-11-20 10:49:39,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_9 [2022-11-20 10:49:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 10:49:39,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 10:49:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:49:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure __download_offload_pseudocode [2022-11-20 10:49:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __download_offload_pseudocode [2022-11-20 10:49:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:49:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:49:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-11-20 10:49:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-11-20 10:49:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2022-11-20 10:49:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2022-11-20 10:49:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_InterfaceNumber [2022-11-20 10:49:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_InterfaceNumber [2022-11-20 10:49:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-20 10:49:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-20 10:49:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 10:49:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 10:49:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2022-11-20 10:49:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2022-11-20 10:49:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-11-20 10:49:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-11-20 10:49:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure new_system_port_status [2022-11-20 10:49:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure new_system_port_status [2022-11-20 10:49:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_request_done [2022-11-20 10:49:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_request_done [2022-11-20 10:49:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 10:49:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 10:49:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 10:49:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 10:49:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2022-11-20 10:49:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2022-11-20 10:49:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-11-20 10:49:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-11-20 10:49:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-20 10:49:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-20 10:49:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-20 10:49:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_47 [2022-11-20 10:49:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_47 [2022-11-20 10:49:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-20 10:49:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-20 10:49:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:49:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2022-11-20 10:49:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2022-11-20 10:49:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2022-11-20 10:49:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2022-11-20 10:49:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-20 10:49:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-20 10:49:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_deadwork_thread [2022-11-20 10:49:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_deadwork_thread [2022-11-20 10:49:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure check_vub300_port_status [2022-11-20 10:49:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure check_vub300_port_status [2022-11-20 10:49:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-20 10:49:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:49:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:49:40,526 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:49:40,529 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:49:42,774 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:49:48,749 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:49:48,783 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:49:48,783 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 10:49:48,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:48 BoogieIcfgContainer [2022-11-20 10:49:48,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:49:48,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:49:48,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:49:48,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:49:48,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:49:35" (1/3) ... [2022-11-20 10:49:48,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7473755c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:48, skipping insertion in model container [2022-11-20 10:49:48,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38" (2/3) ... [2022-11-20 10:49:48,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7473755c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:48, skipping insertion in model container [2022-11-20 10:49:48,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:48" (3/3) ... [2022-11-20 10:49:48,800 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:49:48,835 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:49:48,835 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:49:48,967 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:49:48,975 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;@2d1ec175, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:49:48,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:49:48,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 1600 states, 1132 states have (on average 1.4107773851590106) internal successors, (1597), 1197 states have internal predecessors, (1597), 375 states have call successors, (375), 92 states have call predecessors, (375), 91 states have return successors, (366), 340 states have call predecessors, (366), 366 states have call successors, (366) [2022-11-20 10:49:49,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-20 10:49:49,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:49,021 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 10:49:49,022 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:49,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:49,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2018775807, now seen corresponding path program 1 times [2022-11-20 10:49:49,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:49:49,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635665962] [2022-11-20 10:49:49,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:49,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:49:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:49:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:49:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:49:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:49:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:49:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:49:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:49:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:49:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:49:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:49:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:49:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:49:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:49:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:49,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:49:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:50,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:49:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:50,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:49:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-20 10:49:50,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:49:50,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635665962] [2022-11-20 10:49:50,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635665962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:50,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:50,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:49:50,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960657213] [2022-11-20 10:49:50,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:50,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:49:50,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:49:50,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:49:50,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:49:50,107 INFO L87 Difference]: Start difference. First operand has 1600 states, 1132 states have (on average 1.4107773851590106) internal successors, (1597), 1197 states have internal predecessors, (1597), 375 states have call successors, (375), 92 states have call predecessors, (375), 91 states have return successors, (366), 340 states have call predecessors, (366), 366 states have call successors, (366) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:50:01,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:50:03,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:50:05,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:50:05,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:50:05,841 INFO L93 Difference]: Finished difference Result 3353 states and 5006 transitions. [2022-11-20 10:50:05,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:50:05,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 113 [2022-11-20 10:50:05,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:50:05,882 INFO L225 Difference]: With dead ends: 3353 [2022-11-20 10:50:05,882 INFO L226 Difference]: Without dead ends: 1742 [2022-11-20 10:50:05,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:50:05,960 INFO L413 NwaCegarLoop]: 1776 mSDtfsCounter, 1160 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 947 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 2900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 947 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:50:05,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 3387 Invalid, 2900 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [947 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2022-11-20 10:50:05,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-11-20 10:50:06,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1584. [2022-11-20 10:50:06,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1127 states have (on average 1.3975155279503106) internal successors, (1575), 1181 states have internal predecessors, (1575), 366 states have call successors, (366), 91 states have call predecessors, (366), 90 states have return successors, (361), 335 states have call predecessors, (361), 361 states have call successors, (361) [2022-11-20 10:50:06,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2302 transitions. [2022-11-20 10:50:06,205 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2302 transitions. Word has length 113 [2022-11-20 10:50:06,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:50:06,205 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 2302 transitions. [2022-11-20 10:50:06,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:50:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2302 transitions. [2022-11-20 10:50:06,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-20 10:50:06,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:06,220 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 10:50:06,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:50:06,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:50:06,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:06,222 INFO L85 PathProgramCache]: Analyzing trace with hash 977969143, now seen corresponding path program 1 times [2022-11-20 10:50:06,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:06,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419684527] [2022-11-20 10:50:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:06,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:06,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:50:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:06,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:06,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:06,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:50:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:06,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:06,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:07,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:50:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:07,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:07,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:50:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:07,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:07,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:50:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:07,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:07,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:50:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:07,176 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-20 10:50:07,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:07,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419684527] [2022-11-20 10:50:07,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419684527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:07,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:07,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:50:07,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753243926] [2022-11-20 10:50:07,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:07,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:50:07,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:07,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:50:07,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:50:07,181 INFO L87 Difference]: Start difference. First operand 1584 states and 2302 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:50:23,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:50:28,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:50:28,811 INFO L93 Difference]: Finished difference Result 5018 states and 7756 transitions. [2022-11-20 10:50:28,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:50:28,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 113 [2022-11-20 10:50:28,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:50:28,845 INFO L225 Difference]: With dead ends: 5018 [2022-11-20 10:50:28,846 INFO L226 Difference]: Without dead ends: 3457 [2022-11-20 10:50:28,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:50:28,860 INFO L413 NwaCegarLoop]: 2274 mSDtfsCounter, 4390 mSDsluCounter, 3472 mSDsCounter, 0 mSdLazyCounter, 3695 mSolverCounterSat, 2076 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4594 SdHoareTripleChecker+Valid, 5746 SdHoareTripleChecker+Invalid, 5771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2076 IncrementalHoareTripleChecker+Valid, 3695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:50:28,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4594 Valid, 5746 Invalid, 5771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2076 Valid, 3695 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time] [2022-11-20 10:50:28,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2022-11-20 10:50:29,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 3227. [2022-11-20 10:50:29,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 2291 states have (on average 1.391095591444784) internal successors, (3187), 2406 states have internal predecessors, (3187), 731 states have call successors, (731), 180 states have call predecessors, (731), 204 states have return successors, (933), 693 states have call predecessors, (933), 726 states have call successors, (933) [2022-11-20 10:50:29,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 4851 transitions. [2022-11-20 10:50:29,093 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 4851 transitions. Word has length 113 [2022-11-20 10:50:29,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:50:29,097 INFO L495 AbstractCegarLoop]: Abstraction has 3227 states and 4851 transitions. [2022-11-20 10:50:29,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:50:29,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 4851 transitions. [2022-11-20 10:50:29,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-20 10:50:29,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:29,110 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 10:50:29,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:50:29,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:50:29,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:29,114 INFO L85 PathProgramCache]: Analyzing trace with hash 251738311, now seen corresponding path program 1 times [2022-11-20 10:50:29,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:29,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016589129] [2022-11-20 10:50:29,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:29,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:50:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:50:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:50:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:50:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:50:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:50:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:29,992 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-20 10:50:29,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:29,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016589129] [2022-11-20 10:50:29,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016589129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:29,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:29,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:50:29,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834157785] [2022-11-20 10:50:29,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:30,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:50:30,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:30,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:50:30,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:50:30,003 INFO L87 Difference]: Start difference. First operand 3227 states and 4851 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:50:50,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:50:54,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:50:57,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:50:57,381 INFO L93 Difference]: Finished difference Result 10067 states and 16174 transitions. [2022-11-20 10:50:57,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:50:57,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2022-11-20 10:50:57,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:50:57,445 INFO L225 Difference]: With dead ends: 10067 [2022-11-20 10:50:57,445 INFO L226 Difference]: Without dead ends: 6863 [2022-11-20 10:50:57,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:50:57,474 INFO L413 NwaCegarLoop]: 2302 mSDtfsCounter, 4349 mSDsluCounter, 4271 mSDsCounter, 0 mSdLazyCounter, 4795 mSolverCounterSat, 2034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4558 SdHoareTripleChecker+Valid, 6573 SdHoareTripleChecker+Invalid, 6829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2034 IncrementalHoareTripleChecker+Valid, 4795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:50:57,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4558 Valid, 6573 Invalid, 6829 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2034 Valid, 4795 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time] [2022-11-20 10:50:57,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6863 states. [2022-11-20 10:50:57,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6863 to 6446. [2022-11-20 10:50:57,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6446 states, 4576 states have (on average 1.3898601398601398) internal successors, (6360), 4809 states have internal predecessors, (6360), 1455 states have call successors, (1455), 358 states have call predecessors, (1455), 414 states have return successors, (2225), 1387 states have call predecessors, (2225), 1450 states have call successors, (2225) [2022-11-20 10:50:57,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6446 states to 6446 states and 10040 transitions. [2022-11-20 10:50:57,908 INFO L78 Accepts]: Start accepts. Automaton has 6446 states and 10040 transitions. Word has length 114 [2022-11-20 10:50:57,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:50:57,909 INFO L495 AbstractCegarLoop]: Abstraction has 6446 states and 10040 transitions. [2022-11-20 10:50:57,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:50:57,910 INFO L276 IsEmpty]: Start isEmpty. Operand 6446 states and 10040 transitions. [2022-11-20 10:50:57,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-20 10:50:57,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:57,914 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 10:50:57,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:50:57,917 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:50:57,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:57,919 INFO L85 PathProgramCache]: Analyzing trace with hash -786576134, now seen corresponding path program 1 times [2022-11-20 10:50:57,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:57,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555610599] [2022-11-20 10:50:57,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:57,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:50:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:50:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:50:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:50:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:50:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:50:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:50:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:50:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-20 10:50:58,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:58,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555610599] [2022-11-20 10:50:58,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555610599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:58,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:58,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:50:58,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146516523] [2022-11-20 10:50:58,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:58,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:50:58,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:58,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:50:58,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:50:58,442 INFO L87 Difference]: Start difference. First operand 6446 states and 10040 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:51:11,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:51:12,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:12,244 INFO L93 Difference]: Finished difference Result 6861 states and 10808 transitions. [2022-11-20 10:51:12,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:51:12,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2022-11-20 10:51:12,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:12,308 INFO L225 Difference]: With dead ends: 6861 [2022-11-20 10:51:12,308 INFO L226 Difference]: Without dead ends: 6858 [2022-11-20 10:51:12,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:51:12,316 INFO L413 NwaCegarLoop]: 2285 mSDtfsCounter, 5565 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 2723 mSolverCounterSat, 2988 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5776 SdHoareTripleChecker+Valid, 4821 SdHoareTripleChecker+Invalid, 5711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2988 IncrementalHoareTripleChecker+Valid, 2723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:51:12,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5776 Valid, 4821 Invalid, 5711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2988 Valid, 2723 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2022-11-20 10:51:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6858 states. [2022-11-20 10:51:12,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6858 to 6447. [2022-11-20 10:51:12,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6447 states, 4577 states have (on average 1.3897749617653485) internal successors, (6361), 4810 states have internal predecessors, (6361), 1455 states have call successors, (1455), 358 states have call predecessors, (1455), 414 states have return successors, (2225), 1387 states have call predecessors, (2225), 1450 states have call successors, (2225) [2022-11-20 10:51:12,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6447 states to 6447 states and 10041 transitions. [2022-11-20 10:51:12,822 INFO L78 Accepts]: Start accepts. Automaton has 6447 states and 10041 transitions. Word has length 115 [2022-11-20 10:51:12,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:12,822 INFO L495 AbstractCegarLoop]: Abstraction has 6447 states and 10041 transitions. [2022-11-20 10:51:12,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:51:12,824 INFO L276 IsEmpty]: Start isEmpty. Operand 6447 states and 10041 transitions. [2022-11-20 10:51:12,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 10:51:12,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:12,828 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 10:51:12,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:51:12,828 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:12,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:12,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1385419306, now seen corresponding path program 1 times [2022-11-20 10:51:12,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:51:12,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561850865] [2022-11-20 10:51:12,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:12,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:51:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:51:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:51:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:51:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:51:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:51:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:51:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-20 10:51:13,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:51:13,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561850865] [2022-11-20 10:51:13,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561850865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:51:13,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:51:13,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:51:13,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616757019] [2022-11-20 10:51:13,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:51:13,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:51:13,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:51:13,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:51:13,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:51:13,304 INFO L87 Difference]: Start difference. First operand 6447 states and 10041 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:51:23,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:51:29,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:51:30,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:30,062 INFO L93 Difference]: Finished difference Result 6857 states and 10804 transitions. [2022-11-20 10:51:30,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:51:30,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 116 [2022-11-20 10:51:30,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:30,105 INFO L225 Difference]: With dead ends: 6857 [2022-11-20 10:51:30,105 INFO L226 Difference]: Without dead ends: 6854 [2022-11-20 10:51:30,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:51:30,110 INFO L413 NwaCegarLoop]: 1710 mSDtfsCounter, 3200 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 1188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3407 SdHoareTripleChecker+Valid, 3963 SdHoareTripleChecker+Invalid, 3869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1188 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:51:30,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3407 Valid, 3963 Invalid, 3869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1188 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2022-11-20 10:51:30,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2022-11-20 10:51:30,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6446. [2022-11-20 10:51:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6446 states, 4577 states have (on average 1.389556478042386) internal successors, (6360), 4809 states have internal predecessors, (6360), 1454 states have call successors, (1454), 358 states have call predecessors, (1454), 414 states have return successors, (2225), 1387 states have call predecessors, (2225), 1450 states have call successors, (2225) [2022-11-20 10:51:30,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6446 states to 6446 states and 10039 transitions. [2022-11-20 10:51:30,588 INFO L78 Accepts]: Start accepts. Automaton has 6446 states and 10039 transitions. Word has length 116 [2022-11-20 10:51:30,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:30,589 INFO L495 AbstractCegarLoop]: Abstraction has 6446 states and 10039 transitions. [2022-11-20 10:51:30,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:51:30,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6446 states and 10039 transitions. [2022-11-20 10:51:30,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-20 10:51:30,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:30,593 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 10:51:30,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:51:30,593 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:30,594 INFO L85 PathProgramCache]: Analyzing trace with hash -2193923, now seen corresponding path program 1 times [2022-11-20 10:51:30,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:51:30,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165605133] [2022-11-20 10:51:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:51:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:51:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:51:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:51:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:51:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:51:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:51:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:30,928 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-20 10:51:30,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:51:30,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165605133] [2022-11-20 10:51:30,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165605133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:51:30,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:51:30,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:51:30,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106920199] [2022-11-20 10:51:30,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:51:30,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:51:30,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:51:30,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:51:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:51:30,931 INFO L87 Difference]: Start difference. First operand 6446 states and 10039 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:51:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:39,681 INFO L93 Difference]: Finished difference Result 6856 states and 10802 transitions. [2022-11-20 10:51:39,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:51:39,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 117 [2022-11-20 10:51:39,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:39,725 INFO L225 Difference]: With dead ends: 6856 [2022-11-20 10:51:39,725 INFO L226 Difference]: Without dead ends: 6823 [2022-11-20 10:51:39,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:51:39,734 INFO L413 NwaCegarLoop]: 1726 mSDtfsCounter, 3810 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 1670 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4018 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 3015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1670 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:51:39,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4018 Valid, 2573 Invalid, 3015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1670 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-20 10:51:39,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6823 states. [2022-11-20 10:51:40,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6823 to 6415. [2022-11-20 10:51:40,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6415 states, 4560 states have (on average 1.3901315789473685) internal successors, (6339), 4791 states have internal predecessors, (6339), 1441 states have call successors, (1441), 357 states have call predecessors, (1441), 413 states have return successors, (2189), 1375 states have call predecessors, (2189), 1438 states have call successors, (2189) [2022-11-20 10:51:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6415 states to 6415 states and 9969 transitions. [2022-11-20 10:51:40,271 INFO L78 Accepts]: Start accepts. Automaton has 6415 states and 9969 transitions. Word has length 117 [2022-11-20 10:51:40,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:40,272 INFO L495 AbstractCegarLoop]: Abstraction has 6415 states and 9969 transitions. [2022-11-20 10:51:40,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:51:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 6415 states and 9969 transitions. [2022-11-20 10:51:40,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-20 10:51:40,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:40,286 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-20 10:51:40,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:51:40,287 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:40,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:40,287 INFO L85 PathProgramCache]: Analyzing trace with hash -417546375, now seen corresponding path program 1 times [2022-11-20 10:51:40,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:51:40,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754167995] [2022-11-20 10:51:40,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:40,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:51:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:51:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:51:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:51:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:51:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:51:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:51:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:51:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 10:51:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 10:51:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 10:51:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 10:51:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 10:51:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 10:51:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:51:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:51:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-20 10:51:40,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:51:40,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754167995] [2022-11-20 10:51:40,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754167995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:51:40,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:51:40,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:51:40,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389106732] [2022-11-20 10:51:40,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:51:40,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:51:40,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:51:40,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:51:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:51:40,806 INFO L87 Difference]: Start difference. First operand 6415 states and 9969 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 10:51:55,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:52:09,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:09,233 INFO L93 Difference]: Finished difference Result 20075 states and 31607 transitions. [2022-11-20 10:52:09,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:52:09,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 177 [2022-11-20 10:52:09,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:09,337 INFO L225 Difference]: With dead ends: 20075 [2022-11-20 10:52:09,337 INFO L226 Difference]: Without dead ends: 13683 [2022-11-20 10:52:09,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:52:09,390 INFO L413 NwaCegarLoop]: 1795 mSDtfsCounter, 5510 mSDsluCounter, 5208 mSDsCounter, 0 mSdLazyCounter, 7014 mSolverCounterSat, 3455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5826 SdHoareTripleChecker+Valid, 7003 SdHoareTripleChecker+Invalid, 10469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3455 IncrementalHoareTripleChecker+Valid, 7014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:09,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5826 Valid, 7003 Invalid, 10469 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3455 Valid, 7014 Invalid, 0 Unknown, 0 Unchecked, 26.8s Time] [2022-11-20 10:52:09,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13683 states. [2022-11-20 10:52:10,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13683 to 12628. [2022-11-20 10:52:10,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12628 states, 8909 states have (on average 1.383207991918285) internal successors, (12323), 9395 states have internal predecessors, (12323), 2766 states have call successors, (2766), 677 states have call predecessors, (2766), 952 states have return successors, (4654), 2823 states have call predecessors, (4654), 2763 states have call successors, (4654) [2022-11-20 10:52:10,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12628 states to 12628 states and 19743 transitions. [2022-11-20 10:52:10,882 INFO L78 Accepts]: Start accepts. Automaton has 12628 states and 19743 transitions. Word has length 177 [2022-11-20 10:52:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:10,882 INFO L495 AbstractCegarLoop]: Abstraction has 12628 states and 19743 transitions. [2022-11-20 10:52:10,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 10:52:10,883 INFO L276 IsEmpty]: Start isEmpty. Operand 12628 states and 19743 transitions. [2022-11-20 10:52:10,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-20 10:52:10,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:10,913 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 10:52:10,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:52:10,913 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:10,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:10,914 INFO L85 PathProgramCache]: Analyzing trace with hash 618717598, now seen corresponding path program 1 times [2022-11-20 10:52:10,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:52:10,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92266396] [2022-11-20 10:52:10,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:10,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:52:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:52:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:52:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:52:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:52:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:52:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:52:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:52:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:52:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:52:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:52:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 10:52:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:52:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 10:52:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 10:52:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 10:52:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-20 10:52:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 10:52:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-20 10:52:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:52:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:11,649 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-11-20 10:52:11,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:52:11,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92266396] [2022-11-20 10:52:11,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92266396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:11,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:11,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:52:11,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209479972] [2022-11-20 10:52:11,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:11,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:52:11,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:52:11,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:52:11,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:52:11,654 INFO L87 Difference]: Start difference. First operand 12628 states and 19743 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:52:18,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:52:30,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:52:37,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:52:38,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:52:39,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:39,885 INFO L93 Difference]: Finished difference Result 28869 states and 46069 transitions. [2022-11-20 10:52:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:52:39,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 215 [2022-11-20 10:52:39,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:39,999 INFO L225 Difference]: With dead ends: 28869 [2022-11-20 10:52:40,000 INFO L226 Difference]: Without dead ends: 16264 [2022-11-20 10:52:40,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:52:40,060 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 4733 mSDsluCounter, 6362 mSDsCounter, 0 mSdLazyCounter, 6053 mSolverCounterSat, 2718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5015 SdHoareTripleChecker+Valid, 8281 SdHoareTripleChecker+Invalid, 8771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2718 IncrementalHoareTripleChecker+Valid, 6053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:40,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5015 Valid, 8281 Invalid, 8771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2718 Valid, 6053 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time] [2022-11-20 10:52:40,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16264 states. [2022-11-20 10:52:41,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16264 to 12642. [2022-11-20 10:52:41,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12642 states, 8923 states have (on average 1.3826067466098846) internal successors, (12337), 9409 states have internal predecessors, (12337), 2766 states have call successors, (2766), 677 states have call predecessors, (2766), 952 states have return successors, (4654), 2823 states have call predecessors, (4654), 2763 states have call successors, (4654) [2022-11-20 10:52:41,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12642 states to 12642 states and 19757 transitions. [2022-11-20 10:52:41,325 INFO L78 Accepts]: Start accepts. Automaton has 12642 states and 19757 transitions. Word has length 215 [2022-11-20 10:52:41,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:41,325 INFO L495 AbstractCegarLoop]: Abstraction has 12642 states and 19757 transitions. [2022-11-20 10:52:41,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:52:41,326 INFO L276 IsEmpty]: Start isEmpty. Operand 12642 states and 19757 transitions. [2022-11-20 10:52:41,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-20 10:52:41,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:41,357 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-11-20 10:52:41,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:52:41,358 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:41,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:41,358 INFO L85 PathProgramCache]: Analyzing trace with hash -895644650, now seen corresponding path program 1 times [2022-11-20 10:52:41,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:52:41,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254997479] [2022-11-20 10:52:41,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:41,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:52:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:52:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:52:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:52:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:52:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:52:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:52:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:52:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:52:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:52:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:52:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 10:52:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:52:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:52:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:41,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:52:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:42,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 10:52:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:42,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-20 10:52:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:42,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-20 10:52:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:42,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 10:52:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:42,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-20 10:52:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:42,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-20 10:52:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:42,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:52:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:42,112 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-11-20 10:52:42,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:52:42,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254997479] [2022-11-20 10:52:42,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254997479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:42,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:42,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:52:42,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366705918] [2022-11-20 10:52:42,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:42,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:52:42,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:52:42,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:52:42,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:52:42,116 INFO L87 Difference]: Start difference. First operand 12642 states and 19757 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:53:07,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:53:09,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:09,134 INFO L93 Difference]: Finished difference Result 39438 states and 62116 transitions. [2022-11-20 10:53:09,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:53:09,135 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 232 [2022-11-20 10:53:09,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:09,293 INFO L225 Difference]: With dead ends: 39438 [2022-11-20 10:53:09,294 INFO L226 Difference]: Without dead ends: 26780 [2022-11-20 10:53:09,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:53:09,346 INFO L413 NwaCegarLoop]: 2736 mSDtfsCounter, 5215 mSDsluCounter, 4884 mSDsCounter, 0 mSdLazyCounter, 6425 mSolverCounterSat, 3689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 7620 SdHoareTripleChecker+Invalid, 10114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3689 IncrementalHoareTripleChecker+Valid, 6425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:09,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 7620 Invalid, 10114 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3689 Valid, 6425 Invalid, 0 Unknown, 0 Unchecked, 24.7s Time] [2022-11-20 10:53:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26780 states. [2022-11-20 10:53:11,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26780 to 24733. [2022-11-20 10:53:11,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24733 states, 17495 states have (on average 1.3835381537582165) internal successors, (24205), 18433 states have internal predecessors, (24205), 5370 states have call successors, (5370), 1328 states have call predecessors, (5370), 1867 states have return successors, (8993), 5469 states have call predecessors, (8993), 5367 states have call successors, (8993) [2022-11-20 10:53:11,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24733 states to 24733 states and 38568 transitions. [2022-11-20 10:53:11,622 INFO L78 Accepts]: Start accepts. Automaton has 24733 states and 38568 transitions. Word has length 232 [2022-11-20 10:53:11,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:11,624 INFO L495 AbstractCegarLoop]: Abstraction has 24733 states and 38568 transitions. [2022-11-20 10:53:11,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:53:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 24733 states and 38568 transitions. [2022-11-20 10:53:11,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-20 10:53:11,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:11,708 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2022-11-20 10:53:11,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:53:11,708 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:11,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:11,709 INFO L85 PathProgramCache]: Analyzing trace with hash -670442543, now seen corresponding path program 1 times [2022-11-20 10:53:11,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:53:11,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461491460] [2022-11-20 10:53:11,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:11,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:53:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:11,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:53:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:11,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:11,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:53:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:11,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:53:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:11,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:11,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:53:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:11,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:53:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:11,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:11,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:53:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:53:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:53:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:53:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:53:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 10:53:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:53:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 10:53:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 10:53:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 10:53:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 10:53:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-20 10:53:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-20 10:53:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-20 10:53:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-20 10:53:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-20 10:53:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-20 10:53:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-20 10:53:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-20 10:53:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:53:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-11-20 10:53:12,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:53:12,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461491460] [2022-11-20 10:53:12,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461491460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:12,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:12,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:53:12,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745272711] [2022-11-20 10:53:12,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:12,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:53:12,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:53:12,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:53:12,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:53:12,269 INFO L87 Difference]: Start difference. First operand 24733 states and 38568 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 10:53:16,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:53:35,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:35,415 INFO L93 Difference]: Finished difference Result 41532 states and 64761 transitions. [2022-11-20 10:53:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:53:35,416 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 258 [2022-11-20 10:53:35,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:35,511 INFO L225 Difference]: With dead ends: 41532 [2022-11-20 10:53:35,512 INFO L226 Difference]: Without dead ends: 16830 [2022-11-20 10:53:35,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:53:35,606 INFO L413 NwaCegarLoop]: 1319 mSDtfsCounter, 2668 mSDsluCounter, 4594 mSDsCounter, 0 mSdLazyCounter, 5902 mSolverCounterSat, 2138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2749 SdHoareTripleChecker+Valid, 5913 SdHoareTripleChecker+Invalid, 8040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2138 IncrementalHoareTripleChecker+Valid, 5902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:35,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2749 Valid, 5913 Invalid, 8040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2138 Valid, 5902 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time] [2022-11-20 10:53:35,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16830 states. [2022-11-20 10:53:37,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16830 to 15364. [2022-11-20 10:53:37,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15364 states, 10851 states have (on average 1.3804257672103954) internal successors, (14979), 11430 states have internal predecessors, (14979), 3341 states have call successors, (3341), 854 states have call predecessors, (3341), 1171 states have return successors, (5304), 3386 states have call predecessors, (5304), 3338 states have call successors, (5304) [2022-11-20 10:53:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15364 states to 15364 states and 23624 transitions. [2022-11-20 10:53:37,392 INFO L78 Accepts]: Start accepts. Automaton has 15364 states and 23624 transitions. Word has length 258 [2022-11-20 10:53:37,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:37,392 INFO L495 AbstractCegarLoop]: Abstraction has 15364 states and 23624 transitions. [2022-11-20 10:53:37,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 10:53:37,393 INFO L276 IsEmpty]: Start isEmpty. Operand 15364 states and 23624 transitions. [2022-11-20 10:53:37,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-20 10:53:37,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:37,443 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-20 10:53:37,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:53:37,444 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:37,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:37,445 INFO L85 PathProgramCache]: Analyzing trace with hash 787258900, now seen corresponding path program 1 times [2022-11-20 10:53:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:53:37,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770254692] [2022-11-20 10:53:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:53:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:53:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:53:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:53:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:53:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:53:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:53:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:53:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:53:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:53:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:53:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:38,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 10:53:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:53:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:53:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:53:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:53:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 10:53:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-20 10:53:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:53:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:53:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 10:53:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:53:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-20 10:53:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 10:53:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 10:53:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-20 10:53:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-20 10:53:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:53:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:53:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,215 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-20 10:53:40,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:53:40,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770254692] [2022-11-20 10:53:40,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770254692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:40,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:40,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 10:53:40,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400804229] [2022-11-20 10:53:40,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:40,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:53:40,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:53:40,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:53:40,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:53:40,219 INFO L87 Difference]: Start difference. First operand 15364 states and 23624 transitions. Second operand has 14 states, 14 states have (on average 11.5) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (33), 11 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-20 10:54:03,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:03,415 INFO L93 Difference]: Finished difference Result 34888 states and 55875 transitions. [2022-11-20 10:54:03,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:54:03,417 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (33), 11 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) Word has length 279 [2022-11-20 10:54:03,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:03,670 INFO L225 Difference]: With dead ends: 34888 [2022-11-20 10:54:03,671 INFO L226 Difference]: Without dead ends: 19557 [2022-11-20 10:54:03,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:54:03,744 INFO L413 NwaCegarLoop]: 1537 mSDtfsCounter, 2232 mSDsluCounter, 6929 mSDsCounter, 0 mSdLazyCounter, 7325 mSolverCounterSat, 1112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 8466 SdHoareTripleChecker+Invalid, 8437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1112 IncrementalHoareTripleChecker+Valid, 7325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:03,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 8466 Invalid, 8437 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1112 Valid, 7325 Invalid, 0 Unknown, 0 Unchecked, 20.5s Time] [2022-11-20 10:54:03,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19557 states. [2022-11-20 10:54:05,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19557 to 17764. [2022-11-20 10:54:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17764 states, 12476 states have (on average 1.3813722346906059) internal successors, (17234), 13175 states have internal predecessors, (17234), 3981 states have call successors, (3981), 854 states have call predecessors, (3981), 1306 states have return successors, (6685), 4121 states have call predecessors, (6685), 3978 states have call successors, (6685) [2022-11-20 10:54:05,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17764 states to 17764 states and 27900 transitions. [2022-11-20 10:54:05,380 INFO L78 Accepts]: Start accepts. Automaton has 17764 states and 27900 transitions. Word has length 279 [2022-11-20 10:54:05,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:05,381 INFO L495 AbstractCegarLoop]: Abstraction has 17764 states and 27900 transitions. [2022-11-20 10:54:05,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (33), 11 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-20 10:54:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 17764 states and 27900 transitions. [2022-11-20 10:54:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-11-20 10:54:05,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:05,441 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-20 10:54:05,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:54:05,442 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:05,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:05,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1886815329, now seen corresponding path program 1 times [2022-11-20 10:54:05,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:54:05,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301877815] [2022-11-20 10:54:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:05,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:54:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:54:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:54:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:54:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:54:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:54:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:54:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 10:54:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:54:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:54:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:54:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 10:54:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-20 10:54:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:54:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:54:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 10:54:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:54:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:54:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 10:54:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 10:54:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 10:54:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 10:54:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 10:54:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:54:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:54:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-20 10:54:06,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:54:06,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301877815] [2022-11-20 10:54:06,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301877815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:06,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:06,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:54:06,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547629670] [2022-11-20 10:54:06,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:06,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:54:06,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:54:06,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:54:06,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:54:06,392 INFO L87 Difference]: Start difference. First operand 17764 states and 27900 transitions. Second operand has 12 states, 12 states have (on average 13.5) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 10:54:19,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:54:29,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:29,136 INFO L93 Difference]: Finished difference Result 37268 states and 58892 transitions. [2022-11-20 10:54:29,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:54:29,137 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.5) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 285 [2022-11-20 10:54:29,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:29,265 INFO L225 Difference]: With dead ends: 37268 [2022-11-20 10:54:29,265 INFO L226 Difference]: Without dead ends: 19537 [2022-11-20 10:54:29,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:54:29,355 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 5976 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 4728 mSolverCounterSat, 3966 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6240 SdHoareTripleChecker+Valid, 4968 SdHoareTripleChecker+Invalid, 8694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3966 IncrementalHoareTripleChecker+Valid, 4728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:29,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6240 Valid, 4968 Invalid, 8694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3966 Valid, 4728 Invalid, 0 Unknown, 0 Unchecked, 20.0s Time] [2022-11-20 10:54:29,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19537 states. [2022-11-20 10:54:31,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19537 to 17744. [2022-11-20 10:54:31,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17744 states, 12466 states have (on average 1.3808759826728703) internal successors, (17214), 13165 states have internal predecessors, (17214), 3971 states have call successors, (3971), 854 states have call predecessors, (3971), 1306 states have return successors, (6622), 4111 states have call predecessors, (6622), 3968 states have call successors, (6622) [2022-11-20 10:54:31,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17744 states to 17744 states and 27807 transitions. [2022-11-20 10:54:31,412 INFO L78 Accepts]: Start accepts. Automaton has 17744 states and 27807 transitions. Word has length 285 [2022-11-20 10:54:31,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:31,413 INFO L495 AbstractCegarLoop]: Abstraction has 17744 states and 27807 transitions. [2022-11-20 10:54:31,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.5) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 10:54:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 17744 states and 27807 transitions. [2022-11-20 10:54:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-20 10:54:31,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:31,464 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-20 10:54:31,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:54:31,464 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:31,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:31,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1628442614, now seen corresponding path program 1 times [2022-11-20 10:54:31,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:54:31,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288546709] [2022-11-20 10:54:31,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:31,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:54:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:31,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:54:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:31,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:31,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:31,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:54:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:31,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:31,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:31,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:54:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:31,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:31,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:54:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:54:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:54:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 10:54:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:54:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:54:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:54:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 10:54:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-20 10:54:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:54:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:54:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 10:54:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:54:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:54:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 10:54:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 10:54:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 10:54:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 10:54:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 10:54:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:54:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:54:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-20 10:54:32,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:54:32,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288546709] [2022-11-20 10:54:32,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288546709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:32,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:32,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:54:32,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214360643] [2022-11-20 10:54:32,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:32,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:54:32,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:54:32,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:54:32,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:54:32,526 INFO L87 Difference]: Start difference. First operand 17744 states and 27807 transitions. Second operand has 12 states, 12 states have (on average 13.75) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 10:54:44,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:54:55,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:55,823 INFO L93 Difference]: Finished difference Result 37228 states and 58706 transitions. [2022-11-20 10:54:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:54:55,824 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 288 [2022-11-20 10:54:55,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:55,913 INFO L225 Difference]: With dead ends: 37228 [2022-11-20 10:54:55,913 INFO L226 Difference]: Without dead ends: 19517 [2022-11-20 10:54:55,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:54:55,979 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 4841 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 4713 mSolverCounterSat, 2556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5104 SdHoareTripleChecker+Valid, 4946 SdHoareTripleChecker+Invalid, 7269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2556 IncrementalHoareTripleChecker+Valid, 4713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:55,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5104 Valid, 4946 Invalid, 7269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2556 Valid, 4713 Invalid, 0 Unknown, 0 Unchecked, 20.6s Time] [2022-11-20 10:54:56,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19517 states. [2022-11-20 10:54:57,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19517 to 17724. [2022-11-20 10:54:57,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17724 states, 12456 states have (on average 1.380378933847142) internal successors, (17194), 13155 states have internal predecessors, (17194), 3961 states have call successors, (3961), 854 states have call predecessors, (3961), 1306 states have return successors, (6559), 4101 states have call predecessors, (6559), 3958 states have call successors, (6559) [2022-11-20 10:54:57,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17724 states to 17724 states and 27714 transitions. [2022-11-20 10:54:57,910 INFO L78 Accepts]: Start accepts. Automaton has 17724 states and 27714 transitions. Word has length 288 [2022-11-20 10:54:57,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:57,910 INFO L495 AbstractCegarLoop]: Abstraction has 17724 states and 27714 transitions. [2022-11-20 10:54:57,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 10:54:57,911 INFO L276 IsEmpty]: Start isEmpty. Operand 17724 states and 27714 transitions. [2022-11-20 10:54:57,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-20 10:54:57,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:57,958 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-20 10:54:57,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 10:54:57,959 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:57,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:57,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1087570194, now seen corresponding path program 1 times [2022-11-20 10:54:57,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:54:57,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525446795] [2022-11-20 10:54:57,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:57,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:54:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:54:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:54:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:54:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:54:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:54:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:54:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 10:54:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:54:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:54:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:54:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:54:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 10:54:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-20 10:54:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:54:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:54:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 10:54:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:54:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:54:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 10:54:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 10:54:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 10:54:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 10:54:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 10:54:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:54:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:54:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-20 10:54:58,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:54:58,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525446795] [2022-11-20 10:54:58,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525446795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:58,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:58,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:54:58,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454822258] [2022-11-20 10:54:58,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:58,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:54:58,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:54:58,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:54:58,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:54:58,947 INFO L87 Difference]: Start difference. First operand 17724 states and 27714 transitions. Second operand has 12 states, 12 states have (on average 13.666666666666666) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 10:55:14,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:55:14,260 INFO L93 Difference]: Finished difference Result 37188 states and 58520 transitions. [2022-11-20 10:55:14,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:55:14,261 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.666666666666666) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 287 [2022-11-20 10:55:14,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:55:14,371 INFO L225 Difference]: With dead ends: 37188 [2022-11-20 10:55:14,371 INFO L226 Difference]: Without dead ends: 19497 [2022-11-20 10:55:14,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:55:14,444 INFO L413 NwaCegarLoop]: 1522 mSDtfsCounter, 5788 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 2976 mSolverCounterSat, 3573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6045 SdHoareTripleChecker+Valid, 3804 SdHoareTripleChecker+Invalid, 6549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3573 IncrementalHoareTripleChecker+Valid, 2976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:55:14,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6045 Valid, 3804 Invalid, 6549 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3573 Valid, 2976 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-11-20 10:55:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19497 states. [2022-11-20 10:55:16,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19497 to 17704. [2022-11-20 10:55:16,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17704 states, 12446 states have (on average 1.3798810862927848) internal successors, (17174), 13145 states have internal predecessors, (17174), 3951 states have call successors, (3951), 854 states have call predecessors, (3951), 1306 states have return successors, (6496), 4091 states have call predecessors, (6496), 3948 states have call successors, (6496) [2022-11-20 10:55:16,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17704 states to 17704 states and 27621 transitions. [2022-11-20 10:55:16,292 INFO L78 Accepts]: Start accepts. Automaton has 17704 states and 27621 transitions. Word has length 287 [2022-11-20 10:55:16,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:55:16,293 INFO L495 AbstractCegarLoop]: Abstraction has 17704 states and 27621 transitions. [2022-11-20 10:55:16,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.666666666666666) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 10:55:16,293 INFO L276 IsEmpty]: Start isEmpty. Operand 17704 states and 27621 transitions. [2022-11-20 10:55:16,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-20 10:55:16,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:16,321 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-20 10:55:16,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:55:16,322 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:55:16,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:16,322 INFO L85 PathProgramCache]: Analyzing trace with hash -365313315, now seen corresponding path program 1 times [2022-11-20 10:55:16,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:55:16,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106484776] [2022-11-20 10:55:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:16,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:55:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:55:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:55:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:55:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:55:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:55:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:55:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-20 10:55:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:55:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:55:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:55:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 10:55:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-20 10:55:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:55:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:55:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 10:55:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:55:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:55:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 10:55:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 10:55:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 10:55:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 10:55:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 10:55:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:55:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:55:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-20 10:55:17,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:55:17,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106484776] [2022-11-20 10:55:17,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106484776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:55:17,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:55:17,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:55:17,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136696134] [2022-11-20 10:55:17,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:55:17,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:55:17,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:55:17,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:55:17,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:55:17,500 INFO L87 Difference]: Start difference. First operand 17704 states and 27621 transitions. Second operand has 12 states, 12 states have (on average 13.583333333333334) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 10:55:32,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:55:32,083 INFO L93 Difference]: Finished difference Result 37148 states and 58334 transitions. [2022-11-20 10:55:32,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:55:32,084 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.583333333333334) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 286 [2022-11-20 10:55:32,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:55:32,164 INFO L225 Difference]: With dead ends: 37148 [2022-11-20 10:55:32,164 INFO L226 Difference]: Without dead ends: 19477 [2022-11-20 10:55:32,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:55:32,210 INFO L413 NwaCegarLoop]: 1514 mSDtfsCounter, 4968 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 2598 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5227 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 5540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2598 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:55:32,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5227 Valid, 3805 Invalid, 5540 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2598 Valid, 2942 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2022-11-20 10:55:32,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19477 states. [2022-11-20 10:55:33,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19477 to 17684. [2022-11-20 10:55:33,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17684 states, 12436 states have (on average 1.3793824380829849) internal successors, (17154), 13135 states have internal predecessors, (17154), 3941 states have call successors, (3941), 854 states have call predecessors, (3941), 1306 states have return successors, (6433), 4081 states have call predecessors, (6433), 3938 states have call successors, (6433) [2022-11-20 10:55:33,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17684 states to 17684 states and 27528 transitions. [2022-11-20 10:55:33,960 INFO L78 Accepts]: Start accepts. Automaton has 17684 states and 27528 transitions. Word has length 286 [2022-11-20 10:55:33,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:55:33,961 INFO L495 AbstractCegarLoop]: Abstraction has 17684 states and 27528 transitions. [2022-11-20 10:55:33,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.583333333333334) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (34), 11 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 10:55:33,962 INFO L276 IsEmpty]: Start isEmpty. Operand 17684 states and 27528 transitions. [2022-11-20 10:55:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-20 10:55:33,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:33,991 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2022-11-20 10:55:33,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 10:55:33,991 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:55:33,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:33,992 INFO L85 PathProgramCache]: Analyzing trace with hash 441777548, now seen corresponding path program 1 times [2022-11-20 10:55:33,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:55:33,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313111567] [2022-11-20 10:55:33,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:33,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:55:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:55:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:55:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:55:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:55:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:55:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:55:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 10:55:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:55:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 10:55:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-20 10:55:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-20 10:55:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 10:55:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-20 10:55:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-20 10:55:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:55:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-11-20 10:55:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-20 10:55:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-20 10:55:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-20 10:55:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-20 10:55:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-11-20 10:55:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-20 10:55:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-20 10:55:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-20 10:55:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-11-20 10:55:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-20 10:55:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-11-20 10:55:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:34,863 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-11-20 10:55:34,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:55:34,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313111567] [2022-11-20 10:55:34,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313111567] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:55:34,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455504262] [2022-11-20 10:55:34,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:34,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:55:34,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:55:34,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:55:34,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:55:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:36,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 3023 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:55:36,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:36,170 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-11-20 10:55:36,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:55:36,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455504262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:55:36,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:55:36,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-11-20 10:55:36,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793540080] [2022-11-20 10:55:36,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:55:36,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:55:36,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:55:36,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:55:36,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:55:36,173 INFO L87 Difference]: Start difference. First operand 17684 states and 27528 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 10:55:40,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:55:40,258 INFO L93 Difference]: Finished difference Result 45660 states and 71656 transitions. [2022-11-20 10:55:40,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:55:40,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 307 [2022-11-20 10:55:40,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:55:40,388 INFO L225 Difference]: With dead ends: 45660 [2022-11-20 10:55:40,388 INFO L226 Difference]: Without dead ends: 31708 [2022-11-20 10:55:40,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:55:40,435 INFO L413 NwaCegarLoop]: 4352 mSDtfsCounter, 2846 mSDsluCounter, 10176 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2864 SdHoareTripleChecker+Valid, 14528 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:55:40,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2864 Valid, 14528 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:55:40,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31708 states. [2022-11-20 10:55:43,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31708 to 31649. [2022-11-20 10:55:43,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31649 states, 22259 states have (on average 1.3806999415966574) internal successors, (30733), 23533 states have internal predecessors, (30733), 7071 states have call successors, (7071), 1498 states have call predecessors, (7071), 2318 states have return successors, (11776), 7306 states have call predecessors, (11776), 7068 states have call successors, (11776) [2022-11-20 10:55:43,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31649 states to 31649 states and 49580 transitions. [2022-11-20 10:55:43,871 INFO L78 Accepts]: Start accepts. Automaton has 31649 states and 49580 transitions. Word has length 307 [2022-11-20 10:55:43,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:55:43,872 INFO L495 AbstractCegarLoop]: Abstraction has 31649 states and 49580 transitions. [2022-11-20 10:55:43,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 10:55:43,872 INFO L276 IsEmpty]: Start isEmpty. Operand 31649 states and 49580 transitions. [2022-11-20 10:55:43,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-20 10:55:43,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:43,918 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2022-11-20 10:55:43,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 10:55:44,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-20 10:55:44,119 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:55:44,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:44,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1464625718, now seen corresponding path program 1 times [2022-11-20 10:55:44,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:55:44,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484767331] [2022-11-20 10:55:44,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:44,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:55:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:55:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:55:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:55:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:55:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:55:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:55:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 10:55:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:55:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 10:55:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-20 10:55:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-20 10:55:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 10:55:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-20 10:55:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-20 10:55:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:55:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-11-20 10:55:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-20 10:55:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-20 10:55:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-20 10:55:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-20 10:55:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-11-20 10:55:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-20 10:55:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-20 10:55:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-20 10:55:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-11-20 10:55:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-20 10:55:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-11-20 10:55:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-11-20 10:55:45,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:55:45,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484767331] [2022-11-20 10:55:45,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484767331] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:55:45,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973457456] [2022-11-20 10:55:45,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:45,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:55:45,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:55:45,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:55:45,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:55:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:47,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 10:55:47,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2022-11-20 10:55:47,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:55:47,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973457456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:55:47,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:55:47,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2022-11-20 10:55:47,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640287319] [2022-11-20 10:55:47,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:55:47,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:55:47,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:55:47,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:55:47,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:55:47,979 INFO L87 Difference]: Start difference. First operand 31649 states and 49580 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 10:55:54,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:55:54,765 INFO L93 Difference]: Finished difference Result 59577 states and 93654 transitions. [2022-11-20 10:55:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:55:54,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 307 [2022-11-20 10:55:54,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:55:54,900 INFO L225 Difference]: With dead ends: 59577 [2022-11-20 10:55:54,900 INFO L226 Difference]: Without dead ends: 31652 [2022-11-20 10:55:54,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:55:54,992 INFO L413 NwaCegarLoop]: 2916 mSDtfsCounter, 2276 mSDsluCounter, 7935 mSDsCounter, 0 mSdLazyCounter, 2460 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2280 SdHoareTripleChecker+Valid, 10851 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:55:54,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2280 Valid, 10851 Invalid, 2461 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2460 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 10:55:55,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31652 states. [2022-11-20 10:55:58,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31652 to 31649. [2022-11-20 10:55:58,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31649 states, 22259 states have (on average 1.3806999415966574) internal successors, (30733), 23533 states have internal predecessors, (30733), 7071 states have call successors, (7071), 1498 states have call predecessors, (7071), 2318 states have return successors, (11772), 7306 states have call predecessors, (11772), 7068 states have call successors, (11772) [2022-11-20 10:55:58,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31649 states to 31649 states and 49576 transitions. [2022-11-20 10:55:58,698 INFO L78 Accepts]: Start accepts. Automaton has 31649 states and 49576 transitions. Word has length 307 [2022-11-20 10:55:58,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:55:58,699 INFO L495 AbstractCegarLoop]: Abstraction has 31649 states and 49576 transitions. [2022-11-20 10:55:58,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 10:55:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 31649 states and 49576 transitions. [2022-11-20 10:55:58,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-20 10:55:58,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:58,743 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-20 10:55:58,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:55:58,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-20 10:55:58,944 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:55:58,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:58,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2100547683, now seen corresponding path program 1 times [2022-11-20 10:55:58,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:55:58,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888951805] [2022-11-20 10:55:58,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:58,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:55:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:55:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:55:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:55:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:55:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:55:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:55:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:55:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 10:55:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:55:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:59,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:56:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:56:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:56:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:56:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 10:56:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:56:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-20 10:56:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-20 10:56:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 10:56:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-20 10:56:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-20 10:56:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:56:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:56:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-11-20 10:56:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-20 10:56:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-11-20 10:56:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-20 10:56:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-20 10:56:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-11-20 10:56:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-20 10:56:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-11-20 10:56:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-11-20 10:56:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-11-20 10:56:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-11-20 10:56:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-20 10:56:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:00,304 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-11-20 10:56:00,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:00,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888951805] [2022-11-20 10:56:00,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888951805] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:00,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424765260] [2022-11-20 10:56:00,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:00,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:00,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:00,307 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:00,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:56:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:01,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 3044 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 10:56:01,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-20 10:56:02,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:56:02,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424765260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:02,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:56:02,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 17 [2022-11-20 10:56:02,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274133875] [2022-11-20 10:56:02,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:02,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:56:02,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:02,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:56:02,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:56:02,210 INFO L87 Difference]: Start difference. First operand 31649 states and 49576 transitions. Second operand has 7 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-20 10:56:10,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:10,179 INFO L93 Difference]: Finished difference Result 63312 states and 99202 transitions. [2022-11-20 10:56:10,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:56:10,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 313 [2022-11-20 10:56:10,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:10,324 INFO L225 Difference]: With dead ends: 63312 [2022-11-20 10:56:10,324 INFO L226 Difference]: Without dead ends: 31682 [2022-11-20 10:56:10,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:56:10,434 INFO L413 NwaCegarLoop]: 2908 mSDtfsCounter, 2320 mSDsluCounter, 8365 mSDsCounter, 0 mSdLazyCounter, 3258 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 11273 SdHoareTripleChecker+Invalid, 3260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:10,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 11273 Invalid, 3260 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3258 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 10:56:10,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31682 states. [2022-11-20 10:56:13,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31682 to 31652. [2022-11-20 10:56:13,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31652 states, 22261 states have (on average 1.380710659898477) internal successors, (30736), 23536 states have internal predecessors, (30736), 7071 states have call successors, (7071), 1498 states have call predecessors, (7071), 2319 states have return successors, (11776), 7306 states have call predecessors, (11776), 7068 states have call successors, (11776) [2022-11-20 10:56:13,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31652 states to 31652 states and 49583 transitions. [2022-11-20 10:56:13,976 INFO L78 Accepts]: Start accepts. Automaton has 31652 states and 49583 transitions. Word has length 313 [2022-11-20 10:56:13,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:13,977 INFO L495 AbstractCegarLoop]: Abstraction has 31652 states and 49583 transitions. [2022-11-20 10:56:13,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-20 10:56:13,977 INFO L276 IsEmpty]: Start isEmpty. Operand 31652 states and 49583 transitions. [2022-11-20 10:56:14,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-11-20 10:56:14,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:14,009 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2022-11-20 10:56:14,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:14,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 10:56:14,210 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:56:14,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:14,211 INFO L85 PathProgramCache]: Analyzing trace with hash 129211201, now seen corresponding path program 1 times [2022-11-20 10:56:14,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:14,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699031520] [2022-11-20 10:56:14,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:14,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:56:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:56:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:56:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:56:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:56:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:56:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 10:56:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:56:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:56:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:56:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:56:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:56:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:14,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:56:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:56:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 10:56:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:56:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 10:56:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:56:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:56:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 10:56:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:56:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:56:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-20 10:56:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:56:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-20 10:56:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-20 10:56:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-20 10:56:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-20 10:56:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-20 10:56:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:56:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:56:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-20 10:56:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-20 10:56:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-20 10:56:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-11-20 10:56:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-11-20 10:56:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-11-20 10:56:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-11-20 10:56:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-11-20 10:56:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-11-20 10:56:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-11-20 10:56:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-11-20 10:56:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-11-20 10:56:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:15,560 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-11-20 10:56:15,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:15,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699031520] [2022-11-20 10:56:15,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699031520] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:15,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153381186] [2022-11-20 10:56:15,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:15,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:15,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:15,563 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:15,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb3712c-681b-474f-9e8f-94064c71c946/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:56:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:16,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 3074 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 10:56:16,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:17,126 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 140 proven. 1 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-11-20 10:56:17,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:56:17,589 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-11-20 10:56:17,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153381186] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:56:17,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:56:17,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 19 [2022-11-20 10:56:17,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464362737] [2022-11-20 10:56:17,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:56:17,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:56:17,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:17,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:56:17,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:56:17,592 INFO L87 Difference]: Start difference. First operand 31652 states and 49583 transitions. Second operand has 19 states, 17 states have (on average 10.764705882352942) internal successors, (183), 13 states have internal predecessors, (183), 4 states have call successors, (82), 8 states have call predecessors, (82), 6 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63)