./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/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_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/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_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/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 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 --- 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 16:12:29,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:12:29,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:12:29,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:12:29,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:12:29,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:12:29,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:12:29,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:12:29,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:12:29,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:12:29,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:12:29,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:12:29,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:12:30,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:12:30,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:12:30,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:12:30,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:12:30,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:12:30,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:12:30,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:12:30,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:12:30,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:12:30,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:12:30,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:12:30,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:12:30,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:12:30,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:12:30,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:12:30,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:12:30,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:12:30,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:12:30,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:12:30,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:12:30,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:12:30,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:12:30,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:12:30,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:12:30,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:12:30,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:12:30,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:12:30,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:12:30,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:12:30,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:12:30,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:12:30,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:12:30,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:12:30,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:12:30,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:12:30,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:12:30,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:12:30,064 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:12:30,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:12:30,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:12:30,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:12:30,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:12:30,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:12:30,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:12:30,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:12:30,066 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:12:30,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:12:30,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:12:30,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:12:30,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:12:30,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:12:30,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:12:30,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:12:30,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:12:30,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:12:30,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:12:30,068 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:12:30,069 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:12:30,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:12:30,069 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_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2022-11-21 16:12:30,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:12:30,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:12:30,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:12:30,419 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:12:30,419 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:12:30,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-21 16:12:33,482 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:12:34,180 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:12:34,181 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-21 16:12:34,229 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/bin/uautomizer-vX5HgA9Q3a/data/28b779f2b/68e5e12ebb3b40e8b4fada940f70430c/FLAG0efa736b8 [2022-11-21 16:12:34,244 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/bin/uautomizer-vX5HgA9Q3a/data/28b779f2b/68e5e12ebb3b40e8b4fada940f70430c [2022-11-21 16:12:34,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:12:34,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:12:34,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:12:34,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:12:34,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:12:34,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:12:34" (1/1) ... [2022-11-21 16:12:34,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ba6eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:34, skipping insertion in model container [2022-11-21 16:12:34,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:12:34" (1/1) ... [2022-11-21 16:12:34,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:12:34,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:12:37,309 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_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2022-11-21 16:12:37,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:12:37,584 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:12:38,142 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_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2022-11-21 16:12:38,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:12:38,376 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:12:38,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38 WrapperNode [2022-11-21 16:12:38,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:12:38,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:12:38,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:12:38,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:12:38,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (1/1) ... [2022-11-21 16:12:38,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (1/1) ... [2022-11-21 16:12:38,734 INFO L138 Inliner]: procedures = 341, calls = 3956, calls flagged for inlining = 136, calls inlined = 92, statements flattened = 5415 [2022-11-21 16:12:38,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:12:38,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:12:38,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:12:38,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:12:38,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (1/1) ... [2022-11-21 16:12:38,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (1/1) ... [2022-11-21 16:12:38,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (1/1) ... [2022-11-21 16:12:38,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (1/1) ... [2022-11-21 16:12:38,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (1/1) ... [2022-11-21 16:12:39,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (1/1) ... [2022-11-21 16:12:39,051 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (1/1) ... [2022-11-21 16:12:39,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (1/1) ... [2022-11-21 16:12:39,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:12:39,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:12:39,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:12:39,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:12:39,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (1/1) ... [2022-11-21 16:12:39,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:12:39,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:12:39,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:12:39,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c1b89ff-e7c9-486d-8be9-3f98468dd61b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:12:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2022-11-21 16:12:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2022-11-21 16:12:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2022-11-21 16:12:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2022-11-21 16:12:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-21 16:12:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-21 16:12:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2022-11-21 16:12:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2022-11-21 16:12:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-21 16:12:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-21 16:12:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2022-11-21 16:12:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2022-11-21 16:12:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 16:12:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 16:12:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-21 16:12:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-21 16:12:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-21 16:12:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-21 16:12:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2022-11-21 16:12:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2022-11-21 16:12:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2022-11-21 16:12:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2022-11-21 16:12:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2022-11-21 16:12:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2022-11-21 16:12:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-21 16:12:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-21 16:12:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 16:12:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 16:12:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2022-11-21 16:12:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2022-11-21 16:12:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2022-11-21 16:12:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2022-11-21 16:12:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2022-11-21 16:12:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2022-11-21 16:12:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2022-11-21 16:12:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2022-11-21 16:12:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2022-11-21 16:12:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2022-11-21 16:12:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-21 16:12:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-21 16:12:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 16:12:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 16:12:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2022-11-21 16:12:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2022-11-21 16:12:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-21 16:12:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-21 16:12:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2022-11-21 16:12:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2022-11-21 16:12:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 16:12:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 16:12:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-21 16:12:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-21 16:12:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2022-11-21 16:12:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2022-11-21 16:12:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-21 16:12:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-21 16:12:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2022-11-21 16:12:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2022-11-21 16:12:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 16:12:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 16:12:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-11-21 16:12:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-11-21 16:12:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2022-11-21 16:12:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2022-11-21 16:12:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-11-21 16:12:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-11-21 16:12:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-11-21 16:12:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-11-21 16:12:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:12:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2022-11-21 16:12:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2022-11-21 16:12:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-21 16:12:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-21 16:12:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-11-21 16:12:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-11-21 16:12:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2022-11-21 16:12:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2022-11-21 16:12:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-21 16:12:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:12:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2022-11-21 16:12:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2022-11-21 16:12:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2022-11-21 16:12:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2022-11-21 16:12:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2022-11-21 16:12:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2022-11-21 16:12:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2022-11-21 16:12:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2022-11-21 16:12:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-21 16:12:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-21 16:12:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2022-11-21 16:12:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2022-11-21 16:12:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:12:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-11-21 16:12:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-11-21 16:12:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:12:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-21 16:12:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-21 16:12:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-21 16:12:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-21 16:12:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-21 16:12:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-21 16:12:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2022-11-21 16:12:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2022-11-21 16:12:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-21 16:12:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-21 16:12:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2022-11-21 16:12:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2022-11-21 16:12:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2022-11-21 16:12:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2022-11-21 16:12:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-21 16:12:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-21 16:12:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-11-21 16:12:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-11-21 16:12:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2022-11-21 16:12:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2022-11-21 16:12:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:12:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2022-11-21 16:12:39,223 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2022-11-21 16:12:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-21 16:12:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-21 16:12:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-21 16:12:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-21 16:12:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2022-11-21 16:12:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2022-11-21 16:12:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-11-21 16:12:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-11-21 16:12:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-21 16:12:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-21 16:12:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-21 16:12:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-21 16:12:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-21 16:12:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-21 16:12:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2022-11-21 16:12:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2022-11-21 16:12:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 16:12:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 16:12:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:12:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2022-11-21 16:12:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2022-11-21 16:12:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 16:12:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 16:12:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2022-11-21 16:12:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2022-11-21 16:12:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-21 16:12:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-21 16:12:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:12:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-21 16:12:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-21 16:12:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-21 16:12:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-21 16:12:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-11-21 16:12:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-11-21 16:12:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2022-11-21 16:12:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2022-11-21 16:12:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2022-11-21 16:12:39,228 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2022-11-21 16:12:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2022-11-21 16:12:39,228 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2022-11-21 16:12:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:12:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2022-11-21 16:12:39,228 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2022-11-21 16:12:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:12:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-11-21 16:12:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-11-21 16:12:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-21 16:12:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-21 16:12:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-21 16:12:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-21 16:12:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-21 16:12:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-21 16:12:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2022-11-21 16:12:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2022-11-21 16:12:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-21 16:12:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-21 16:12:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-21 16:12:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-21 16:12:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-21 16:12:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-21 16:12:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2022-11-21 16:12:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2022-11-21 16:12:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-21 16:12:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-21 16:12:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:12:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2022-11-21 16:12:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2022-11-21 16:12:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2022-11-21 16:12:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2022-11-21 16:12:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-21 16:12:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-21 16:12:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:12:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:12:39,993 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:12:39,996 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:12:40,416 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 16:12:47,319 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:12:47,344 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:12:47,345 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:12:47,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:12:47 BoogieIcfgContainer [2022-11-21 16:12:47,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:12:47,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:12:47,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:12:47,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:12:47,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:12:34" (1/3) ... [2022-11-21 16:12:47,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d682dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:12:47, skipping insertion in model container [2022-11-21 16:12:47,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:38" (2/3) ... [2022-11-21 16:12:47,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d682dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:12:47, skipping insertion in model container [2022-11-21 16:12:47,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:12:47" (3/3) ... [2022-11-21 16:12:47,362 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-21 16:12:47,381 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:12:47,381 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:12:47,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:12:47,497 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;@3bcefd73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:12:47,498 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:12:47,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 1572 states, 1086 states have (on average 1.358195211786372) internal successors, (1475), 1130 states have internal predecessors, (1475), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) [2022-11-21 16:12:47,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-21 16:12:47,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:12:47,548 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:47,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:12:47,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:47,558 INFO L85 PathProgramCache]: Analyzing trace with hash -979395188, now seen corresponding path program 1 times [2022-11-21 16:12:47,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:47,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590132386] [2022-11-21 16:12:47,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:47,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:48,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:12:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:48,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:12:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:48,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:12:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:48,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:12:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:48,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:12:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:48,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:12:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:48,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:12:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:48,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:12:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:48,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:12:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:48,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:12:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:12:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:12:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:12:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:12:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:12:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:12:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:12:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:12:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:12:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:12:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:12:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:12:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:12:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 16:12:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:12:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-11-21 16:12:49,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:49,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590132386] [2022-11-21 16:12:49,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590132386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:49,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:49,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:12:49,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080050414] [2022-11-21 16:12:49,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:49,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:12:49,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:49,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:12:49,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:12:49,281 INFO L87 Difference]: Start difference. First operand has 1572 states, 1086 states have (on average 1.358195211786372) internal successors, (1475), 1130 states have internal predecessors, (1475), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-21 16:13:00,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:13:00,355 INFO L93 Difference]: Finished difference Result 4427 states and 6591 transitions. [2022-11-21 16:13:00,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:13:00,365 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 163 [2022-11-21 16:13:00,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:13:00,434 INFO L225 Difference]: With dead ends: 4427 [2022-11-21 16:13:00,434 INFO L226 Difference]: Without dead ends: 2739 [2022-11-21 16:13:00,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:13:00,453 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 2879 mSDsluCounter, 4553 mSDsCounter, 0 mSdLazyCounter, 3471 mSolverCounterSat, 1703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3040 SdHoareTripleChecker+Valid, 6519 SdHoareTripleChecker+Invalid, 5174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1703 IncrementalHoareTripleChecker+Valid, 3471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:13:00,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3040 Valid, 6519 Invalid, 5174 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1703 Valid, 3471 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-11-21 16:13:00,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2022-11-21 16:13:00,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2448. [2022-11-21 16:13:00,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 1705 states have (on average 1.3560117302052785) internal successors, (2312), 1767 states have internal predecessors, (2312), 598 states have call successors, (598), 145 states have call predecessors, (598), 144 states have return successors, (597), 560 states have call predecessors, (597), 597 states have call successors, (597) [2022-11-21 16:13:00,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3507 transitions. [2022-11-21 16:13:00,768 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3507 transitions. Word has length 163 [2022-11-21 16:13:00,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:13:00,772 INFO L495 AbstractCegarLoop]: Abstraction has 2448 states and 3507 transitions. [2022-11-21 16:13:00,773 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-21 16:13:00,773 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3507 transitions. [2022-11-21 16:13:00,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-21 16:13:00,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:13:00,787 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:13:00,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:13:00,788 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:13:00,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:00,789 INFO L85 PathProgramCache]: Analyzing trace with hash 347675526, now seen corresponding path program 1 times [2022-11-21 16:13:00,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:00,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670664787] [2022-11-21 16:13:00,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:00,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:13:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:13:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:13:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:13:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:13:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:13:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:13:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:13:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:13:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 16:13:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-21 16:13:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-11-21 16:13:01,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:01,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670664787] [2022-11-21 16:13:01,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670664787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:01,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:01,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:13:01,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162071509] [2022-11-21 16:13:01,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:01,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:13:01,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:01,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:13:01,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:13:01,803 INFO L87 Difference]: Start difference. First operand 2448 states and 3507 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:13:09,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:13:09,480 INFO L93 Difference]: Finished difference Result 7071 states and 10254 transitions. [2022-11-21 16:13:09,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:13:09,481 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 164 [2022-11-21 16:13:09,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:13:09,510 INFO L225 Difference]: With dead ends: 7071 [2022-11-21 16:13:09,511 INFO L226 Difference]: Without dead ends: 4660 [2022-11-21 16:13:09,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:13:09,524 INFO L413 NwaCegarLoop]: 1949 mSDtfsCounter, 4028 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 2607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4194 SdHoareTripleChecker+Valid, 4483 SdHoareTripleChecker+Invalid, 4756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2607 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:13:09,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4194 Valid, 4483 Invalid, 4756 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2607 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-21 16:13:09,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4660 states. [2022-11-21 16:13:09,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4660 to 4132. [2022-11-21 16:13:09,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4132 states, 2891 states have (on average 1.3718436527153235) internal successors, (3966), 3015 states have internal predecessors, (3966), 988 states have call successors, (988), 253 states have call predecessors, (988), 252 states have return successors, (987), 913 states have call predecessors, (987), 987 states have call successors, (987) [2022-11-21 16:13:09,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4132 states to 4132 states and 5941 transitions. [2022-11-21 16:13:09,769 INFO L78 Accepts]: Start accepts. Automaton has 4132 states and 5941 transitions. Word has length 164 [2022-11-21 16:13:09,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:13:09,771 INFO L495 AbstractCegarLoop]: Abstraction has 4132 states and 5941 transitions. [2022-11-21 16:13:09,771 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:13:09,772 INFO L276 IsEmpty]: Start isEmpty. Operand 4132 states and 5941 transitions. [2022-11-21 16:13:09,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-21 16:13:09,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:13:09,777 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:13:09,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:13:09,777 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:13:09,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:09,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1948988792, now seen corresponding path program 1 times [2022-11-21 16:13:09,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:09,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555587657] [2022-11-21 16:13:09,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:09,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:13:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:13:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:13:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:13:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:13:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:13:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:13:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:13:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:13:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 16:13:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 16:13:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-11-21 16:13:10,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:10,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555587657] [2022-11-21 16:13:10,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555587657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:10,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:10,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:13:10,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977566513] [2022-11-21 16:13:10,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:10,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:13:10,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:10,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:13:10,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:13:10,860 INFO L87 Difference]: Start difference. First operand 4132 states and 5941 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:13:17,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:13:17,236 INFO L93 Difference]: Finished difference Result 5178 states and 7488 transitions. [2022-11-21 16:13:17,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:13:17,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2022-11-21 16:13:17,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:13:17,281 INFO L225 Difference]: With dead ends: 5178 [2022-11-21 16:13:17,281 INFO L226 Difference]: Without dead ends: 5175 [2022-11-21 16:13:17,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:13:17,288 INFO L413 NwaCegarLoop]: 1737 mSDtfsCounter, 3290 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 1694 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3465 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 3077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1694 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:13:17,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3465 Valid, 3045 Invalid, 3077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1694 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-21 16:13:17,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5175 states. [2022-11-21 16:13:17,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5175 to 4592. [2022-11-21 16:13:17,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4592 states, 3243 states have (on average 1.3808202281837805) internal successors, (4478), 3373 states have internal predecessors, (4478), 1038 states have call successors, (1038), 319 states have call predecessors, (1038), 310 states have return successors, (1039), 953 states have call predecessors, (1039), 1037 states have call successors, (1039) [2022-11-21 16:13:17,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 6555 transitions. [2022-11-21 16:13:17,614 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 6555 transitions. Word has length 167 [2022-11-21 16:13:17,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:13:17,615 INFO L495 AbstractCegarLoop]: Abstraction has 4592 states and 6555 transitions. [2022-11-21 16:13:17,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:13:17,616 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 6555 transitions. [2022-11-21 16:13:17,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-21 16:13:17,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:13:17,623 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:13:17,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:13:17,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:13:17,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:17,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1401647003, now seen corresponding path program 1 times [2022-11-21 16:13:17,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:17,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027609526] [2022-11-21 16:13:17,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:17,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:13:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:13:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:13:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:13:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:13:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:18,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:13:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:13:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:13:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:13:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 16:13:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-21 16:13:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:13:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-21 16:13:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 16:13:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-21 16:13:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-21 16:13:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-11-21 16:13:19,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:19,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027609526] [2022-11-21 16:13:19,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027609526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:19,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:19,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:13:19,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901646127] [2022-11-21 16:13:19,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:19,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:13:19,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:19,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:13:19,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:13:19,280 INFO L87 Difference]: Start difference. First operand 4592 states and 6555 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 16:13:40,088 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 16:13:49,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:13:51,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:13:54,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:13:56,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:13:56,571 INFO L93 Difference]: Finished difference Result 25194 states and 37376 transitions. [2022-11-21 16:13:56,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-21 16:13:56,572 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 211 [2022-11-21 16:13:56,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:13:56,702 INFO L225 Difference]: With dead ends: 25194 [2022-11-21 16:13:56,702 INFO L226 Difference]: Without dead ends: 20649 [2022-11-21 16:13:56,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=493, Unknown=0, NotChecked=0, Total=702 [2022-11-21 16:13:56,736 INFO L413 NwaCegarLoop]: 2087 mSDtfsCounter, 9776 mSDsluCounter, 8164 mSDsCounter, 0 mSdLazyCounter, 14552 mSolverCounterSat, 4907 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10464 SdHoareTripleChecker+Valid, 10251 SdHoareTripleChecker+Invalid, 19460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4907 IncrementalHoareTripleChecker+Valid, 14552 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:13:56,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10464 Valid, 10251 Invalid, 19460 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4907 Valid, 14552 Invalid, 1 Unknown, 0 Unchecked, 35.5s Time] [2022-11-21 16:13:56,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20649 states. [2022-11-21 16:13:57,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20649 to 18316. [2022-11-21 16:13:58,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18316 states, 12933 states have (on average 1.3778705636743216) internal successors, (17820), 13479 states have internal predecessors, (17820), 4112 states have call successors, (4112), 1261 states have call predecessors, (4112), 1270 states have return successors, (4761), 3803 states have call predecessors, (4761), 4111 states have call successors, (4761) [2022-11-21 16:13:58,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18316 states to 18316 states and 26693 transitions. [2022-11-21 16:13:58,097 INFO L78 Accepts]: Start accepts. Automaton has 18316 states and 26693 transitions. Word has length 211 [2022-11-21 16:13:58,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:13:58,097 INFO L495 AbstractCegarLoop]: Abstraction has 18316 states and 26693 transitions. [2022-11-21 16:13:58,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 16:13:58,098 INFO L276 IsEmpty]: Start isEmpty. Operand 18316 states and 26693 transitions. [2022-11-21 16:13:58,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-21 16:13:58,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:13:58,103 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:13:58,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:13:58,103 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:13:58,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:58,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2141224150, now seen corresponding path program 1 times [2022-11-21 16:13:58,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:58,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863124873] [2022-11-21 16:13:58,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:58,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:13:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:13:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:13:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:13:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:13:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:58,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:13:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:13:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:13:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:13:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 16:13:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-21 16:13:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:13:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:13:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-11-21 16:13:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-21 16:13:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-21 16:13:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-21 16:13:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-21 16:13:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-11-21 16:13:59,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:59,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863124873] [2022-11-21 16:13:59,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863124873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:59,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:59,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:13:59,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187946560] [2022-11-21 16:13:59,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:59,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:13:59,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:59,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:13:59,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:13:59,392 INFO L87 Difference]: Start difference. First operand 18316 states and 26693 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 16:14:19,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:14:23,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:14:23,198 INFO L93 Difference]: Finished difference Result 100526 states and 152090 transitions. [2022-11-21 16:14:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-21 16:14:23,199 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 212 [2022-11-21 16:14:23,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:14:23,937 INFO L225 Difference]: With dead ends: 100526 [2022-11-21 16:14:23,937 INFO L226 Difference]: Without dead ends: 82257 [2022-11-21 16:14:24,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=493, Unknown=0, NotChecked=0, Total=702 [2022-11-21 16:14:24,062 INFO L413 NwaCegarLoop]: 2085 mSDtfsCounter, 10959 mSDsluCounter, 5709 mSDsCounter, 0 mSdLazyCounter, 9516 mSolverCounterSat, 6190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11645 SdHoareTripleChecker+Valid, 7794 SdHoareTripleChecker+Invalid, 15706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6190 IncrementalHoareTripleChecker+Valid, 9516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:14:24,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11645 Valid, 7794 Invalid, 15706 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6190 Valid, 9516 Invalid, 0 Unknown, 0 Unchecked, 19.5s Time] [2022-11-21 16:14:24,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82257 states. [2022-11-21 16:14:28,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82257 to 73328. [2022-11-21 16:14:28,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73328 states, 51793 states have (on average 1.3752437588091055) internal successors, (71228), 53987 states have internal predecessors, (71228), 16400 states have call successors, (16400), 5029 states have call predecessors, (16400), 5134 states have return successors, (21773), 15223 states have call predecessors, (21773), 16399 states have call successors, (21773) [2022-11-21 16:14:29,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73328 states to 73328 states and 109401 transitions. [2022-11-21 16:14:29,804 INFO L78 Accepts]: Start accepts. Automaton has 73328 states and 109401 transitions. Word has length 212 [2022-11-21 16:14:29,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:14:29,805 INFO L495 AbstractCegarLoop]: Abstraction has 73328 states and 109401 transitions. [2022-11-21 16:14:29,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 16:14:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 73328 states and 109401 transitions. [2022-11-21 16:14:29,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-21 16:14:29,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:14:29,813 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:14:29,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:14:29,814 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:14:29,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:29,814 INFO L85 PathProgramCache]: Analyzing trace with hash 754550718, now seen corresponding path program 1 times [2022-11-21 16:14:29,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:29,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412173226] [2022-11-21 16:14:29,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:29,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:14:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:14:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:14:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:14:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:14:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:14:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:14:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:14:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:14:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 16:14:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-21 16:14:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 16:14:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-21 16:14:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-21 16:14:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-21 16:14:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-21 16:14:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:31,394 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-11-21 16:14:31,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:31,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412173226] [2022-11-21 16:14:31,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412173226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:31,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:31,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 16:14:31,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924857779] [2022-11-21 16:14:31,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:31,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:14:31,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:31,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:14:31,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:14:31,397 INFO L87 Difference]: Start difference. First operand 73328 states and 109401 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 16:14:41,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:14:48,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:14:48,747 INFO L93 Difference]: Finished difference Result 162205 states and 245669 transitions. [2022-11-21 16:14:48,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:14:48,749 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 212 [2022-11-21 16:14:48,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:14:49,537 INFO L225 Difference]: With dead ends: 162205 [2022-11-21 16:14:49,538 INFO L226 Difference]: Without dead ends: 88924 [2022-11-21 16:14:49,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2022-11-21 16:14:49,869 INFO L413 NwaCegarLoop]: 1288 mSDtfsCounter, 4780 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 3429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 4414 SdHoareTripleChecker+Invalid, 7198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3429 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-21 16:14:49,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 4414 Invalid, 7198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3429 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2022-11-21 16:14:49,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88924 states. [2022-11-21 16:14:56,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88924 to 74044. [2022-11-21 16:14:56,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74044 states, 52260 states have (on average 1.3700535782625334) internal successors, (71599), 54474 states have internal predecessors, (71599), 16420 states have call successors, (16420), 5030 states have call predecessors, (16420), 5363 states have return successors, (22614), 15479 states have call predecessors, (22614), 16419 states have call successors, (22614) [2022-11-21 16:14:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74044 states to 74044 states and 110633 transitions. [2022-11-21 16:14:57,090 INFO L78 Accepts]: Start accepts. Automaton has 74044 states and 110633 transitions. Word has length 212 [2022-11-21 16:14:57,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:14:57,095 INFO L495 AbstractCegarLoop]: Abstraction has 74044 states and 110633 transitions. [2022-11-21 16:14:57,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 16:14:57,096 INFO L276 IsEmpty]: Start isEmpty. Operand 74044 states and 110633 transitions. [2022-11-21 16:14:57,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-21 16:14:57,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:14:57,101 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:14:57,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:14:57,101 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:14:57,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:57,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1920232822, now seen corresponding path program 1 times [2022-11-21 16:14:57,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:57,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527726744] [2022-11-21 16:14:57,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:57,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:57,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:14:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:57,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:57,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:57,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:14:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:57,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:57,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:57,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:14:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:14:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:14:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:14:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:14:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:14:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:14:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 16:14:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-21 16:14:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-21 16:14:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:14:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:14:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-21 16:14:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-21 16:14:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-21 16:14:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 16:14:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-11-21 16:14:58,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:58,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527726744] [2022-11-21 16:14:58,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527726744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:58,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:58,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 16:14:58,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948249632] [2022-11-21 16:14:58,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:58,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:14:58,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:58,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:14:58,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:14:58,657 INFO L87 Difference]: Start difference. First operand 74044 states and 110633 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 16:15:10,764 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 16:15:13,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:15:17,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:15:17,520 INFO L93 Difference]: Finished difference Result 162853 states and 246286 transitions. [2022-11-21 16:15:17,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:15:17,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 213 [2022-11-21 16:15:17,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:15:18,188 INFO L225 Difference]: With dead ends: 162853 [2022-11-21 16:15:18,188 INFO L226 Difference]: Without dead ends: 88860 [2022-11-21 16:15:18,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2022-11-21 16:15:18,416 INFO L413 NwaCegarLoop]: 1285 mSDtfsCounter, 4003 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 3820 mSolverCounterSat, 2429 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4225 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 6250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2429 IncrementalHoareTripleChecker+Valid, 3820 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:15:18,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4225 Valid, 4244 Invalid, 6250 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2429 Valid, 3820 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2022-11-21 16:15:18,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88860 states. [2022-11-21 16:15:22,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88860 to 73980. [2022-11-21 16:15:22,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73980 states, 52260 states have (on average 1.3688289322617682) internal successors, (71535), 54410 states have internal predecessors, (71535), 16356 states have call successors, (16356), 5030 states have call predecessors, (16356), 5363 states have return successors, (22362), 15479 states have call predecessors, (22362), 16355 states have call successors, (22362) [2022-11-21 16:15:23,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73980 states to 73980 states and 110253 transitions. [2022-11-21 16:15:23,259 INFO L78 Accepts]: Start accepts. Automaton has 73980 states and 110253 transitions. Word has length 213 [2022-11-21 16:15:23,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:15:23,260 INFO L495 AbstractCegarLoop]: Abstraction has 73980 states and 110253 transitions. [2022-11-21 16:15:23,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 16:15:23,260 INFO L276 IsEmpty]: Start isEmpty. Operand 73980 states and 110253 transitions. [2022-11-21 16:15:23,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-21 16:15:23,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:15:23,265 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:15:23,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:15:23,265 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:15:23,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:23,266 INFO L85 PathProgramCache]: Analyzing trace with hash 3084038, now seen corresponding path program 1 times [2022-11-21 16:15:23,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:23,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700793980] [2022-11-21 16:15:23,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:23,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:15:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:15:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:15:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:15:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:15:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:15:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:15:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:15:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:15:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 16:15:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-21 16:15:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-21 16:15:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-21 16:15:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-21 16:15:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-21 16:15:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-21 16:15:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:24,638 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-11-21 16:15:24,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:24,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700793980] [2022-11-21 16:15:24,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700793980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:24,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:24,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 16:15:24,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431077238] [2022-11-21 16:15:24,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:24,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:15:24,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:24,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:15:24,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:15:24,641 INFO L87 Difference]: Start difference. First operand 73980 states and 110253 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 16:15:36,279 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 16:15:40,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:15:40,840 INFO L93 Difference]: Finished difference Result 162885 states and 245518 transitions. [2022-11-21 16:15:40,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 16:15:40,841 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 214 [2022-11-21 16:15:40,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:15:41,316 INFO L225 Difference]: With dead ends: 162885 [2022-11-21 16:15:41,316 INFO L226 Difference]: Without dead ends: 88956 [2022-11-21 16:15:41,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2022-11-21 16:15:41,544 INFO L413 NwaCegarLoop]: 1283 mSDtfsCounter, 4785 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 3764 mSolverCounterSat, 3411 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 4400 SdHoareTripleChecker+Invalid, 7176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3411 IncrementalHoareTripleChecker+Valid, 3764 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-21 16:15:41,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 4400 Invalid, 7176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3411 Valid, 3764 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-11-21 16:15:41,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88956 states. [2022-11-21 16:15:46,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88956 to 74012. [2022-11-21 16:15:46,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74012 states, 52324 states have (on average 1.3671546517850317) internal successors, (71535), 54410 states have internal predecessors, (71535), 16292 states have call successors, (16292), 5062 states have call predecessors, (16292), 5395 states have return successors, (22110), 15479 states have call predecessors, (22110), 16291 states have call successors, (22110) [2022-11-21 16:15:47,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74012 states to 74012 states and 109937 transitions. [2022-11-21 16:15:47,274 INFO L78 Accepts]: Start accepts. Automaton has 74012 states and 109937 transitions. Word has length 214 [2022-11-21 16:15:47,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:15:47,274 INFO L495 AbstractCegarLoop]: Abstraction has 74012 states and 109937 transitions. [2022-11-21 16:15:47,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 16:15:47,275 INFO L276 IsEmpty]: Start isEmpty. Operand 74012 states and 109937 transitions. [2022-11-21 16:15:47,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-21 16:15:47,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:15:47,280 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:15:47,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:15:47,280 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:15:47,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:47,281 INFO L85 PathProgramCache]: Analyzing trace with hash -377930686, now seen corresponding path program 1 times [2022-11-21 16:15:47,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:47,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967070462] [2022-11-21 16:15:47,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:47,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:47,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:15:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:47,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:47,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:15:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:15:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:15:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:15:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:15:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:15:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:15:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:15:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 16:15:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-21 16:15:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:15:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-21 16:15:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-21 16:15:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-21 16:15:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-21 16:15:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-21 16:15:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:48,309 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-11-21 16:15:48,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:48,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967070462] [2022-11-21 16:15:48,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967070462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:48,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:48,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:15:48,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307134416] [2022-11-21 16:15:48,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:48,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:15:48,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:48,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:15:48,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:15:48,312 INFO L87 Difference]: Start difference. First operand 74012 states and 109937 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)