./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:09:08,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:09:08,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:09:08,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:09:08,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:09:08,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:09:08,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:09:08,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:09:08,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:09:08,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:09:08,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:09:08,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:09:08,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:09:08,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:09:08,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:09:08,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:09:08,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:09:08,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:09:08,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:09:08,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:09:08,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:09:08,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:09:08,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:09:08,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:09:08,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:09:08,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:09:08,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:09:08,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:09:08,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:09:08,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:09:08,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:09:08,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:09:08,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:09:08,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:09:08,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:09:08,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:09:08,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:09:08,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:09:08,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:09:08,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:09:08,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:09:08,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:09:08,844 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:09:08,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:09:08,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:09:08,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:09:08,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:09:08,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:09:08,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:09:08,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:09:08,849 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:09:08,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:09:08,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:09:08,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:09:08,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:09:08,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:09:08,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:09:08,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:09:08,851 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:09:08,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:09:08,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:09:08,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:09:08,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:09:08,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:09:08,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:09:08,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:09:08,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:09:08,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:09:08,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:09:08,854 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:09:08,854 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:09:08,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:09:08,854 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_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 [2022-11-21 16:09:09,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:09:09,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:09:09,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:09:09,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:09:09,176 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:09:09,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-21 16:09:12,301 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:09:13,059 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:09:13,060 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-21 16:09:13,125 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/data/8a3a559cf/e26f812121aa4821a24c83ed96d64431/FLAG6a271a0a5 [2022-11-21 16:09:13,147 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/data/8a3a559cf/e26f812121aa4821a24c83ed96d64431 [2022-11-21 16:09:13,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:09:13,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:09:13,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:09:13,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:09:13,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:09:13,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:09:13" (1/1) ... [2022-11-21 16:09:13,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f105e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:13, skipping insertion in model container [2022-11-21 16:09:13,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:09:13" (1/1) ... [2022-11-21 16:09:13,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:09:13,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:09:16,922 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_2ffe4af0-c71a-4728-9165-58069407efa7/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2022-11-21 16:09:17,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:09:17,360 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:09:18,071 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_2ffe4af0-c71a-4728-9165-58069407efa7/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2022-11-21 16:09:18,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:09:18,345 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:09:18,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18 WrapperNode [2022-11-21 16:09:18,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:09:18,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:09:18,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:09:18,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:09:18,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (1/1) ... [2022-11-21 16:09:18,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (1/1) ... [2022-11-21 16:09:19,224 INFO L138 Inliner]: procedures = 549, calls = 5015, calls flagged for inlining = 246, calls inlined = 225, statements flattened = 9855 [2022-11-21 16:09:19,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:09:19,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:09:19,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:09:19,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:09:19,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (1/1) ... [2022-11-21 16:09:19,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (1/1) ... [2022-11-21 16:09:19,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (1/1) ... [2022-11-21 16:09:19,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (1/1) ... [2022-11-21 16:09:20,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (1/1) ... [2022-11-21 16:09:20,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (1/1) ... [2022-11-21 16:09:20,104 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (1/1) ... [2022-11-21 16:09:20,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (1/1) ... [2022-11-21 16:09:20,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:09:20,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:09:20,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:09:20,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:09:20,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (1/1) ... [2022-11-21 16:09:20,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:09:20,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:09:20,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:09:20,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffe4af0-c71a-4728-9165-58069407efa7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:09:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-21 16:09:20,340 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-21 16:09:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2022-11-21 16:09:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2022-11-21 16:09:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-21 16:09:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-21 16:09:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-21 16:09:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-21 16:09:20,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-21 16:09:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2022-11-21 16:09:20,342 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2022-11-21 16:09:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-21 16:09:20,342 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-21 16:09:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 16:09:20,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 16:09:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_3 [2022-11-21 16:09:20,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_3 [2022-11-21 16:09:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-21 16:09:20,343 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-21 16:09:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2022-11-21 16:09:20,344 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2022-11-21 16:09:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2022-11-21 16:09:20,344 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2022-11-21 16:09:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2022-11-21 16:09:20,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2022-11-21 16:09:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2022-11-21 16:09:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2022-11-21 16:09:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2022-11-21 16:09:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2022-11-21 16:09:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2022-11-21 16:09:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2022-11-21 16:09:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2022-11-21 16:09:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2022-11-21 16:09:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-21 16:09:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-21 16:09:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2022-11-21 16:09:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2022-11-21 16:09:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2022-11-21 16:09:20,347 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2022-11-21 16:09:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-21 16:09:20,347 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-21 16:09:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-21 16:09:20,347 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-21 16:09:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:09:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2022-11-21 16:09:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2022-11-21 16:09:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2022-11-21 16:09:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2022-11-21 16:09:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2022-11-21 16:09:20,348 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2022-11-21 16:09:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 16:09:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2022-11-21 16:09:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2022-11-21 16:09:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-21 16:09:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-21 16:09:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-21 16:09:20,350 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-21 16:09:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2022-11-21 16:09:20,350 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2022-11-21 16:09:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 16:09:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-21 16:09:20,350 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-21 16:09:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2022-11-21 16:09:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2022-11-21 16:09:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2022-11-21 16:09:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2022-11-21 16:09:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-21 16:09:20,351 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-21 16:09:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:09:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 16:09:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 16:09:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2022-11-21 16:09:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2022-11-21 16:09:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-21 16:09:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-21 16:09:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2022-11-21 16:09:20,353 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2022-11-21 16:09:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2022-11-21 16:09:20,353 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2022-11-21 16:09:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-21 16:09:20,353 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-21 16:09:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2022-11-21 16:09:20,354 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2022-11-21 16:09:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2022-11-21 16:09:20,354 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2022-11-21 16:09:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-21 16:09:20,354 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-21 16:09:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2022-11-21 16:09:20,355 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2022-11-21 16:09:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2022-11-21 16:09:20,355 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2022-11-21 16:09:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-21 16:09:20,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-21 16:09:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:09:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2022-11-21 16:09:20,356 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2022-11-21 16:09:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:09:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-21 16:09:20,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-21 16:09:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-21 16:09:20,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-21 16:09:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-21 16:09:20,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-21 16:09:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:09:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-21 16:09:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-21 16:09:20,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-21 16:09:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2022-11-21 16:09:20,358 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2022-11-21 16:09:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2022-11-21 16:09:20,358 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2022-11-21 16:09:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2022-11-21 16:09:20,358 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2022-11-21 16:09:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2022-11-21 16:09:20,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2022-11-21 16:09:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-21 16:09:20,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-21 16:09:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-21 16:09:20,359 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-21 16:09:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-11-21 16:09:20,360 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-11-21 16:09:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-21 16:09:20,360 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-21 16:09:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2022-11-21 16:09:20,360 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2022-11-21 16:09:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-21 16:09:20,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-21 16:09:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-21 16:09:20,361 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-21 16:09:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2022-11-21 16:09:20,361 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2022-11-21 16:09:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-21 16:09:20,361 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-21 16:09:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2022-11-21 16:09:20,362 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2022-11-21 16:09:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:09:20,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:09:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-21 16:09:20,362 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-21 16:09:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-21 16:09:20,363 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-21 16:09:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 16:09:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 16:09:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 16:09:20,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 16:09:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-21 16:09:20,364 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-21 16:09:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-21 16:09:20,364 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-21 16:09:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2022-11-21 16:09:20,364 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2022-11-21 16:09:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-21 16:09:20,364 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-21 16:09:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-21 16:09:20,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-21 16:09:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2022-11-21 16:09:20,365 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2022-11-21 16:09:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-21 16:09:20,365 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-21 16:09:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2022-11-21 16:09:20,366 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2022-11-21 16:09:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2022-11-21 16:09:20,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2022-11-21 16:09:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2022-11-21 16:09:20,366 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2022-11-21 16:09:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-21 16:09:20,366 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-21 16:09:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 16:09:20,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 16:09:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-21 16:09:20,367 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-21 16:09:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-21 16:09:20,367 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-21 16:09:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-21 16:09:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-21 16:09:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2022-11-21 16:09:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2022-11-21 16:09:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 16:09:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 16:09:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-21 16:09:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-21 16:09:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2022-11-21 16:09:20,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2022-11-21 16:09:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:09:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-21 16:09:20,369 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-21 16:09:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2022-11-21 16:09:20,369 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2022-11-21 16:09:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:09:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2022-11-21 16:09:20,370 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2022-11-21 16:09:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2022-11-21 16:09:20,370 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2022-11-21 16:09:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2022-11-21 16:09:20,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2022-11-21 16:09:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2022-11-21 16:09:20,371 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2022-11-21 16:09:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-21 16:09:20,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-21 16:09:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:09:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-21 16:09:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-21 16:09:20,372 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2022-11-21 16:09:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2022-11-21 16:09:20,372 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2022-11-21 16:09:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2022-11-21 16:09:20,372 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-21 16:09:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-21 16:09:20,373 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2022-11-21 16:09:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2022-11-21 16:09:20,373 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-21 16:09:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-21 16:09:20,373 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-21 16:09:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-21 16:09:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2022-11-21 16:09:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2022-11-21 16:09:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2022-11-21 16:09:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2022-11-21 16:09:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2022-11-21 16:09:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2022-11-21 16:09:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-21 16:09:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-21 16:09:20,375 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2022-11-21 16:09:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2022-11-21 16:09:20,375 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-21 16:09:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-21 16:09:20,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2022-11-21 16:09:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2022-11-21 16:09:20,376 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2022-11-21 16:09:20,376 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2022-11-21 16:09:20,376 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-21 16:09:20,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-21 16:09:20,376 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2022-11-21 16:09:20,376 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2022-11-21 16:09:20,376 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2022-11-21 16:09:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2022-11-21 16:09:20,377 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 16:09:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 16:09:20,377 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2022-11-21 16:09:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2022-11-21 16:09:20,377 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2022-11-21 16:09:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2022-11-21 16:09:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:09:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure hibernation_resume [2022-11-21 16:09:20,378 INFO L138 BoogieDeclarations]: Found implementation of procedure hibernation_resume [2022-11-21 16:09:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2022-11-21 16:09:20,378 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2022-11-21 16:09:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 16:09:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 16:09:20,379 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2022-11-21 16:09:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2022-11-21 16:09:20,379 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2022-11-21 16:09:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2022-11-21 16:09:20,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-21 16:09:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-21 16:09:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2022-11-21 16:09:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2022-11-21 16:09:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-21 16:09:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-21 16:09:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2022-11-21 16:09:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2022-11-21 16:09:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-21 16:09:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-21 16:09:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2022-11-21 16:09:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2022-11-21 16:09:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-21 16:09:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-21 16:09:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2022-11-21 16:09:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2022-11-21 16:09:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2022-11-21 16:09:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2022-11-21 16:09:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2022-11-21 16:09:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2022-11-21 16:09:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2022-11-21 16:09:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2022-11-21 16:09:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2022-11-21 16:09:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2022-11-21 16:09:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2022-11-21 16:09:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2022-11-21 16:09:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:09:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2022-11-21 16:09:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2022-11-21 16:09:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2022-11-21 16:09:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2022-11-21 16:09:21,755 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:09:21,773 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:09:31,279 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 16:14:59,854 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:14:59,874 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:14:59,874 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 16:14:59,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:14:59 BoogieIcfgContainer [2022-11-21 16:14:59,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:14:59,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:14:59,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:14:59,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:14:59,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:09:13" (1/3) ... [2022-11-21 16:14:59,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793f7807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:14:59, skipping insertion in model container [2022-11-21 16:14:59,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:18" (2/3) ... [2022-11-21 16:14:59,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793f7807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:14:59, skipping insertion in model container [2022-11-21 16:14:59,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:14:59" (3/3) ... [2022-11-21 16:14:59,889 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-21 16:14:59,908 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:14:59,909 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:15:00,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:15:00,011 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;@382c3b11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:15:00,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:15:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 2647 states, 1862 states have (on average 1.371106337271751) internal successors, (2553), 1897 states have internal predecessors, (2553), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) [2022-11-21 16:15:00,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-21 16:15:00,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:15:00,042 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-21 16:15:00,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:15:00,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:00,048 INFO L85 PathProgramCache]: Analyzing trace with hash -451358800, now seen corresponding path program 1 times [2022-11-21 16:15:00,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:00,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113252088] [2022-11-21 16:15:00,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:00,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:15:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:01,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:01,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:01,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:15:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:01,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:02,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:15:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:02,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:02,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:02,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:15:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:02,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:02,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:15:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:02,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-21 16:15:02,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:02,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113252088] [2022-11-21 16:15:02,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113252088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:02,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:02,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:15:02,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682985589] [2022-11-21 16:15:02,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:02,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:15:02,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:02,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:15:02,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:15:02,401 INFO L87 Difference]: Start difference. First operand has 2647 states, 1862 states have (on average 1.371106337271751) internal successors, (2553), 1897 states have internal predecessors, (2553), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-21 16:15:04,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:15:06,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:15:08,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:15:13,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:15:15,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:15:22,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:15:29,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:15:37,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:15:55,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:15:57,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:01,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:03,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:03,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:03,996 INFO L93 Difference]: Finished difference Result 8384 states and 12813 transitions. [2022-11-21 16:16:04,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:16:04,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 98 [2022-11-21 16:16:04,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:04,074 INFO L225 Difference]: With dead ends: 8384 [2022-11-21 16:16:04,075 INFO L226 Difference]: Without dead ends: 5704 [2022-11-21 16:16:04,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:16:04,124 INFO L413 NwaCegarLoop]: 3902 mSDtfsCounter, 5983 mSDsluCounter, 7365 mSDsCounter, 0 mSdLazyCounter, 4127 mSolverCounterSat, 3532 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6408 SdHoareTripleChecker+Valid, 11267 SdHoareTripleChecker+Invalid, 7671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3532 IncrementalHoareTripleChecker+Valid, 4127 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:04,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6408 Valid, 11267 Invalid, 7671 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3532 Valid, 4127 Invalid, 12 Unknown, 0 Unchecked, 60.4s Time] [2022-11-21 16:16:04,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5704 states. [2022-11-21 16:16:04,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5704 to 5098. [2022-11-21 16:16:04,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5098 states, 3618 states have (on average 1.365395245992261) internal successors, (4940), 3645 states have internal predecessors, (4940), 1219 states have call successors, (1219), 258 states have call predecessors, (1219), 260 states have return successors, (1223), 1208 states have call predecessors, (1223), 1209 states have call successors, (1223) [2022-11-21 16:16:04,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5098 states to 5098 states and 7382 transitions. [2022-11-21 16:16:04,600 INFO L78 Accepts]: Start accepts. Automaton has 5098 states and 7382 transitions. Word has length 98 [2022-11-21 16:16:04,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:04,610 INFO L495 AbstractCegarLoop]: Abstraction has 5098 states and 7382 transitions. [2022-11-21 16:16:04,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-21 16:16:04,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5098 states and 7382 transitions. [2022-11-21 16:16:04,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-21 16:16:04,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:04,622 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-21 16:16:04,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:16:04,623 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:04,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:04,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1953853219, now seen corresponding path program 1 times [2022-11-21 16:16:04,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:04,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516412886] [2022-11-21 16:16:04,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:04,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:16:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:16:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:16:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:16:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:16:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:16:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:16:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:16:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:16:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-21 16:16:06,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:06,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516412886] [2022-11-21 16:16:06,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516412886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:06,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:06,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:16:06,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101656805] [2022-11-21 16:16:06,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:06,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:16:06,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:06,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:16:06,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:16:06,014 INFO L87 Difference]: Start difference. First operand 5098 states and 7382 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 16:16:08,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:12,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:14,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:20,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:23,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:28,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:34,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:50,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:53,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:16:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:54,183 INFO L93 Difference]: Finished difference Result 16260 states and 23777 transitions. [2022-11-21 16:16:54,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:16:54,184 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), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2022-11-21 16:16:54,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:54,278 INFO L225 Difference]: With dead ends: 16260 [2022-11-21 16:16:54,278 INFO L226 Difference]: Without dead ends: 11177 [2022-11-21 16:16:54,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:16:54,311 INFO L413 NwaCegarLoop]: 3861 mSDtfsCounter, 6815 mSDsluCounter, 5348 mSDsCounter, 0 mSdLazyCounter, 2919 mSolverCounterSat, 4929 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7241 SdHoareTripleChecker+Valid, 9209 SdHoareTripleChecker+Invalid, 7856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4929 IncrementalHoareTripleChecker+Valid, 2919 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:54,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7241 Valid, 9209 Invalid, 7856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4929 Valid, 2919 Invalid, 8 Unknown, 0 Unchecked, 47.0s Time] [2022-11-21 16:16:54,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11177 states. [2022-11-21 16:16:54,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11177 to 9954. [2022-11-21 16:16:54,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9954 states, 7069 states have (on average 1.3689347856839722) internal successors, (9677), 7109 states have internal predecessors, (9677), 2376 states have call successors, (2376), 506 states have call predecessors, (2376), 508 states have return successors, (2394), 2364 states have call predecessors, (2394), 2366 states have call successors, (2394) [2022-11-21 16:16:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9954 states to 9954 states and 14447 transitions. [2022-11-21 16:16:54,973 INFO L78 Accepts]: Start accepts. Automaton has 9954 states and 14447 transitions. Word has length 103 [2022-11-21 16:16:54,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:54,974 INFO L495 AbstractCegarLoop]: Abstraction has 9954 states and 14447 transitions. [2022-11-21 16:16:54,975 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), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 16:16:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 9954 states and 14447 transitions. [2022-11-21 16:16:54,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-21 16:16:54,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:54,984 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:16:54,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:16:54,985 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:54,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:54,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1860052872, now seen corresponding path program 1 times [2022-11-21 16:16:54,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:54,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842823480] [2022-11-21 16:16:54,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:54,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:55,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:16:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:16:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:16:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:16:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:16:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:16:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:16:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:16:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-21 16:16:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:16:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-21 16:16:56,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:56,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842823480] [2022-11-21 16:16:56,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842823480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:56,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:56,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:16:56,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927829537] [2022-11-21 16:16:56,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:56,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:16:56,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:56,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:16:56,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:16:56,527 INFO L87 Difference]: Start difference. First operand 9954 states and 14447 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 16:16:58,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:17:00,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:17:02,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:17:07,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:17:09,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:17:17,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:17:29,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:17:37,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:02,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:04,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:06,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:11,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:13,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:15,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:15,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:18:15,961 INFO L93 Difference]: Finished difference Result 32033 states and 46858 transitions. [2022-11-21 16:18:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:18:15,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2022-11-21 16:18:15,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:18:16,103 INFO L225 Difference]: With dead ends: 32033 [2022-11-21 16:18:16,103 INFO L226 Difference]: Without dead ends: 22094 [2022-11-21 16:18:16,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:18:16,155 INFO L413 NwaCegarLoop]: 3911 mSDtfsCounter, 5495 mSDsluCounter, 9471 mSDsCounter, 0 mSdLazyCounter, 5247 mSolverCounterSat, 3280 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5922 SdHoareTripleChecker+Valid, 13382 SdHoareTripleChecker+Invalid, 8541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3280 IncrementalHoareTripleChecker+Valid, 5247 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:18:16,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5922 Valid, 13382 Invalid, 8541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3280 Valid, 5247 Invalid, 14 Unknown, 0 Unchecked, 78.1s Time] [2022-11-21 16:18:16,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22094 states. [2022-11-21 16:18:17,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22094 to 19669. [2022-11-21 16:18:17,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19669 states, 13980 states have (on average 1.3693848354792562) internal successors, (19144), 14046 states have internal predecessors, (19144), 4678 states have call successors, (4678), 1008 states have call predecessors, (4678), 1010 states have return successors, (4724), 4664 states have call predecessors, (4724), 4668 states have call successors, (4724) [2022-11-21 16:18:17,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19669 states to 19669 states and 28546 transitions. [2022-11-21 16:18:17,316 INFO L78 Accepts]: Start accepts. Automaton has 19669 states and 28546 transitions. Word has length 113 [2022-11-21 16:18:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:18:17,318 INFO L495 AbstractCegarLoop]: Abstraction has 19669 states and 28546 transitions. [2022-11-21 16:18:17,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 16:18:17,319 INFO L276 IsEmpty]: Start isEmpty. Operand 19669 states and 28546 transitions. [2022-11-21 16:18:17,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-21 16:18:17,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:18:17,330 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-21 16:18:17,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:18:17,330 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:18:17,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:17,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2030784620, now seen corresponding path program 1 times [2022-11-21 16:18:17,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:17,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540812615] [2022-11-21 16:18:17,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:17,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:18:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:18:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:18:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:18:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:18:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:18:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:18:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:18:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:18:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:18:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:18:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:18:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:18:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:18:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:18:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:18:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:18,731 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-21 16:18:18,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:18,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540812615] [2022-11-21 16:18:18,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540812615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:18,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:18,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:18:18,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600945476] [2022-11-21 16:18:18,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:18,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:18:18,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:18,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:18:18,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:18:18,734 INFO L87 Difference]: Start difference. First operand 19669 states and 28546 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:18:20,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:22,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:27,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:29,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:42,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:18:55,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:19:10,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:19:22,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:19:25,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:19:27,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:19:27,601 INFO L93 Difference]: Finished difference Result 61692 states and 90349 transitions. [2022-11-21 16:19:27,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:19:27,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2022-11-21 16:19:27,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:19:27,866 INFO L225 Difference]: With dead ends: 61692 [2022-11-21 16:19:27,866 INFO L226 Difference]: Without dead ends: 42038 [2022-11-21 16:19:27,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:19:27,978 INFO L413 NwaCegarLoop]: 3999 mSDtfsCounter, 5876 mSDsluCounter, 9721 mSDsCounter, 0 mSdLazyCounter, 5317 mSolverCounterSat, 4350 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6296 SdHoareTripleChecker+Valid, 13720 SdHoareTripleChecker+Invalid, 9676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4350 IncrementalHoareTripleChecker+Valid, 5317 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:19:27,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6296 Valid, 13720 Invalid, 9676 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4350 Valid, 5317 Invalid, 9 Unknown, 0 Unchecked, 66.8s Time] [2022-11-21 16:19:28,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42038 states. [2022-11-21 16:19:30,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42038 to 36417. [2022-11-21 16:19:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36417 states, 25940 states have (on average 1.3760986892829608) internal successors, (35696), 26030 states have internal predecessors, (35696), 8598 states have call successors, (8598), 1876 states have call predecessors, (8598), 1878 states have return successors, (8676), 8584 states have call predecessors, (8676), 8588 states have call successors, (8676) [2022-11-21 16:19:30,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36417 states to 36417 states and 52970 transitions. [2022-11-21 16:19:30,445 INFO L78 Accepts]: Start accepts. Automaton has 36417 states and 52970 transitions. Word has length 114 [2022-11-21 16:19:30,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:19:30,446 INFO L495 AbstractCegarLoop]: Abstraction has 36417 states and 52970 transitions. [2022-11-21 16:19:30,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:19:30,446 INFO L276 IsEmpty]: Start isEmpty. Operand 36417 states and 52970 transitions. [2022-11-21 16:19:30,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-21 16:19:30,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:19:30,448 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-21 16:19:30,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:19:30,449 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:19:30,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:30,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1497540479, now seen corresponding path program 1 times [2022-11-21 16:19:30,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:30,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916394199] [2022-11-21 16:19:30,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:30,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:19:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:19:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:19:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:19:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:19:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:19:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:19:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:19:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:19:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:19:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:19:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:31,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:19:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:32,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:19:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:32,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:19:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:32,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:19:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-21 16:19:32,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:19:32,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916394199] [2022-11-21 16:19:32,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916394199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:19:32,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:19:32,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:19:32,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141012593] [2022-11-21 16:19:32,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:19:32,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:19:32,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:19:32,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:19:32,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:19:32,086 INFO L87 Difference]: Start difference. First operand 36417 states and 52970 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 16:19:34,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:19:38,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:19:40,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:19:47,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:19:50,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:19:57,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:20:05,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:20:14,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:20:15,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:15,958 INFO L93 Difference]: Finished difference Result 77564 states and 113694 transitions. [2022-11-21 16:20:15,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:20:15,959 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2022-11-21 16:20:15,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:16,179 INFO L225 Difference]: With dead ends: 77564 [2022-11-21 16:20:16,179 INFO L226 Difference]: Without dead ends: 41162 [2022-11-21 16:20:16,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:20:16,328 INFO L413 NwaCegarLoop]: 3304 mSDtfsCounter, 4595 mSDsluCounter, 4114 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 1960 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 7418 SdHoareTripleChecker+Invalid, 4425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1960 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.9s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:16,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4967 Valid, 7418 Invalid, 4425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1960 Valid, 2458 Invalid, 7 Unknown, 0 Unchecked, 41.9s Time] [2022-11-21 16:20:16,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41162 states. [2022-11-21 16:20:18,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41162 to 36547. [2022-11-21 16:20:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36547 states, 26029 states have (on average 1.3673210649659995) internal successors, (35590), 26118 states have internal predecessors, (35590), 8620 states have call successors, (8620), 1895 states have call predecessors, (8620), 1897 states have return successors, (8698), 8607 states have call predecessors, (8698), 8610 states have call successors, (8698) [2022-11-21 16:20:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36547 states to 36547 states and 52908 transitions. [2022-11-21 16:20:18,841 INFO L78 Accepts]: Start accepts. Automaton has 36547 states and 52908 transitions. Word has length 117 [2022-11-21 16:20:18,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:18,843 INFO L495 AbstractCegarLoop]: Abstraction has 36547 states and 52908 transitions. [2022-11-21 16:20:18,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 16:20:18,844 INFO L276 IsEmpty]: Start isEmpty. Operand 36547 states and 52908 transitions. [2022-11-21 16:20:18,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-21 16:20:18,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:18,849 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-21 16:20:18,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:20:18,849 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:20:18,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:18,850 INFO L85 PathProgramCache]: Analyzing trace with hash -685891891, now seen corresponding path program 1 times [2022-11-21 16:20:18,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:18,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784951701] [2022-11-21 16:20:18,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:18,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:20:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:20:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:20:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:20:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:20:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:20:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:20:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:20:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:20:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:20:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:20:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:20:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:20:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 16:20:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:20:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-21 16:20:21,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:21,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784951701] [2022-11-21 16:20:21,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784951701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:21,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:21,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:20:21,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182254207] [2022-11-21 16:20:21,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:21,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:20:21,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:21,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:20:21,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:20:21,694 INFO L87 Difference]: Start difference. First operand 36547 states and 52908 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 16:20:23,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:20:25,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:20:29,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:20:32,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:20:41,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:20:51,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:21:03,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:21:13,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:21:15,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:21:18,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:21:18,378 INFO L93 Difference]: Finished difference Result 82188 states and 118958 transitions. [2022-11-21 16:21:18,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:21:18,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 118 [2022-11-21 16:21:18,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:21:18,558 INFO L225 Difference]: With dead ends: 82188 [2022-11-21 16:21:18,558 INFO L226 Difference]: Without dead ends: 45656 [2022-11-21 16:21:18,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:21:18,677 INFO L413 NwaCegarLoop]: 3364 mSDtfsCounter, 4190 mSDsluCounter, 6563 mSDsCounter, 0 mSdLazyCounter, 3460 mSolverCounterSat, 1988 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4461 SdHoareTripleChecker+Valid, 9927 SdHoareTripleChecker+Invalid, 5457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1988 IncrementalHoareTripleChecker+Valid, 3460 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:21:18,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4461 Valid, 9927 Invalid, 5457 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1988 Valid, 3460 Invalid, 9 Unknown, 0 Unchecked, 54.3s Time] [2022-11-21 16:21:18,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45656 states. [2022-11-21 16:21:20,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45656 to 39998. [2022-11-21 16:21:20,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39998 states, 28520 states have (on average 1.3626928471248247) internal successors, (38864), 28607 states have internal predecessors, (38864), 9172 states have call successors, (9172), 2304 states have call predecessors, (9172), 2305 states have return successors, (9266), 9160 states have call predecessors, (9266), 9162 states have call successors, (9266) [2022-11-21 16:21:20,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39998 states to 39998 states and 57302 transitions. [2022-11-21 16:21:20,888 INFO L78 Accepts]: Start accepts. Automaton has 39998 states and 57302 transitions. Word has length 118 [2022-11-21 16:21:20,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:21:20,888 INFO L495 AbstractCegarLoop]: Abstraction has 39998 states and 57302 transitions. [2022-11-21 16:21:20,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 16:21:20,889 INFO L276 IsEmpty]: Start isEmpty. Operand 39998 states and 57302 transitions. [2022-11-21 16:21:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-21 16:21:20,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:21:20,893 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:20,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:21:20,896 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:21:20,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:20,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1981461331, now seen corresponding path program 1 times [2022-11-21 16:21:20,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:20,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747393447] [2022-11-21 16:21:20,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:20,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:21:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:21:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:21:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:21:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:21:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:21:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:21:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:21:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:21:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:21:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:21:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:21:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:22,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:21:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:23,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 16:21:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:23,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:21:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:23,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:21:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:23,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:21:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:23,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:21:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:23,306 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-21 16:21:23,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:23,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747393447] [2022-11-21 16:21:23,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747393447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:23,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:23,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:21:23,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277591471] [2022-11-21 16:21:23,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:23,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:21:23,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:23,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:21:23,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:21:23,309 INFO L87 Difference]: Start difference. First operand 39998 states and 57302 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:21:25,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:21:27,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:21:32,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:21:35,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:21:47,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:21:58,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:14,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:26,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:28,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:31,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:31,748 INFO L93 Difference]: Finished difference Result 45583 states and 65787 transitions. [2022-11-21 16:22:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:22:31,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 127 [2022-11-21 16:22:31,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:31,944 INFO L225 Difference]: With dead ends: 45583 [2022-11-21 16:22:31,945 INFO L226 Difference]: Without dead ends: 45580 [2022-11-21 16:22:31,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:22:31,967 INFO L413 NwaCegarLoop]: 3143 mSDtfsCounter, 4565 mSDsluCounter, 7270 mSDsCounter, 0 mSdLazyCounter, 4949 mSolverCounterSat, 1932 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4937 SdHoareTripleChecker+Valid, 10413 SdHoareTripleChecker+Invalid, 6890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1932 IncrementalHoareTripleChecker+Valid, 4949 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.9s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:31,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4937 Valid, 10413 Invalid, 6890 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1932 Valid, 4949 Invalid, 9 Unknown, 0 Unchecked, 65.9s Time] [2022-11-21 16:22:32,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45580 states. [2022-11-21 16:22:34,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45580 to 39997. [2022-11-21 16:22:34,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39997 states, 28520 states have (on average 1.3626577840112202) internal successors, (38863), 28606 states have internal predecessors, (38863), 9171 states have call successors, (9171), 2304 states have call predecessors, (9171), 2305 states have return successors, (9266), 9160 states have call predecessors, (9266), 9162 states have call successors, (9266) [2022-11-21 16:22:34,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39997 states to 39997 states and 57300 transitions. [2022-11-21 16:22:34,229 INFO L78 Accepts]: Start accepts. Automaton has 39997 states and 57300 transitions. Word has length 127 [2022-11-21 16:22:34,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:34,230 INFO L495 AbstractCegarLoop]: Abstraction has 39997 states and 57300 transitions. [2022-11-21 16:22:34,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:22:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 39997 states and 57300 transitions. [2022-11-21 16:22:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-21 16:22:34,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:34,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:34,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:22:34,235 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:22:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1296732359, now seen corresponding path program 1 times [2022-11-21 16:22:34,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:34,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089622413] [2022-11-21 16:22:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:22:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:22:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:22:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:22:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:22:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:22:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:22:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:22:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:22:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:22:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:22:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:22:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:22:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 16:22:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:22:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:22:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:22:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:22:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-21 16:22:36,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:36,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089622413] [2022-11-21 16:22:36,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089622413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:36,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:36,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:22:36,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590874092] [2022-11-21 16:22:36,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:36,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:22:36,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:36,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:22:36,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:22:36,051 INFO L87 Difference]: Start difference. First operand 39997 states and 57300 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:22:38,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:40,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:42,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:46,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:49,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:58,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:06,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:18,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []