./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc --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 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d --- 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-5e519f3 [2022-11-02 20:35:36,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:35:36,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:35:36,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:35:36,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:35:36,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:35:36,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:35:36,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:35:36,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:35:36,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:35:36,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:35:36,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:35:36,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:35:36,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:35:36,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:35:36,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:35:36,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:35:36,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:35:36,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:35:36,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:35:36,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:35:36,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:35:36,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:35:36,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:35:36,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:35:36,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:35:36,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:35:36,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:35:36,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:35:36,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:35:36,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:35:36,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:35:36,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:35:36,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:35:36,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:35:36,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:35:36,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:35:36,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:35:36,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:35:36,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:35:36,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:35:36,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:35:36,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:35:36,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:35:36,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:35:36,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:35:36,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:35:36,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:35:36,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:35:36,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:35:36,425 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:35:36,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:35:36,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:35:36,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:35:36,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:35:36,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:35:36,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:35:36,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:35:36,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:35:36,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:35:36,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:35:36,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:35:36,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:35:36,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:35:36,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:35:36,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:35:36,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:35:36,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:35:36,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:35:36,431 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:35:36,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:35:36,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:35:36,442 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_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d [2022-11-02 20:35:36,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:35:36,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:35:36,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:35:36,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:35:36,775 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:35:36,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-02 20:35:36,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/data/6f2eb667d/eda7551e9b0d4f05b4779d97bc5d1410/FLAG3ba93b6d1 [2022-11-02 20:35:37,787 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:35:37,787 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-02 20:35:37,837 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/data/6f2eb667d/eda7551e9b0d4f05b4779d97bc5d1410/FLAG3ba93b6d1 [2022-11-02 20:35:38,145 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/data/6f2eb667d/eda7551e9b0d4f05b4779d97bc5d1410 [2022-11-02 20:35:38,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:35:38,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:35:38,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:35:38,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:35:38,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:35:38,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:35:38" (1/1) ... [2022-11-02 20:35:38,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6e9e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:38, skipping insertion in model container [2022-11-02 20:35:38,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:35:38" (1/1) ... [2022-11-02 20:35:38,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:35:38,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:35:39,775 WARN L230 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_760d9101-1c38-4a11-84c7-67936f6914e2/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[171620,171633] [2022-11-02 20:35:41,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:35:41,320 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:35:41,492 WARN L230 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_760d9101-1c38-4a11-84c7-67936f6914e2/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[171620,171633] [2022-11-02 20:35:41,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:35:42,088 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:35:42,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42 WrapperNode [2022-11-02 20:35:42,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:35:42,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:35:42,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:35:42,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:35:42,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (1/1) ... [2022-11-02 20:35:42,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (1/1) ... [2022-11-02 20:35:42,483 INFO L138 Inliner]: procedures = 318, calls = 3918, calls flagged for inlining = 135, calls inlined = 109, statements flattened = 6384 [2022-11-02 20:35:42,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:35:42,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:35:42,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:35:42,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:35:42,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (1/1) ... [2022-11-02 20:35:42,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (1/1) ... [2022-11-02 20:35:42,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (1/1) ... [2022-11-02 20:35:42,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (1/1) ... [2022-11-02 20:35:42,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (1/1) ... [2022-11-02 20:35:42,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (1/1) ... [2022-11-02 20:35:42,879 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (1/1) ... [2022-11-02 20:35:42,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (1/1) ... [2022-11-02 20:35:42,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:35:42,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:35:42,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:35:42,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:35:42,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (1/1) ... [2022-11-02 20:35:42,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:35:42,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:35:43,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:35:43,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760d9101-1c38-4a11-84c7-67936f6914e2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:35:43,066 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2022-11-02 20:35:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2022-11-02 20:35:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-02 20:35:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-02 20:35:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2022-11-02 20:35:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2022-11-02 20:35:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2022-11-02 20:35:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2022-11-02 20:35:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2022-11-02 20:35:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2022-11-02 20:35:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:35:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:35:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2022-11-02 20:35:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2022-11-02 20:35:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-02 20:35:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-02 20:35:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2022-11-02 20:35:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2022-11-02 20:35:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-02 20:35:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-02 20:35:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2022-11-02 20:35:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2022-11-02 20:35:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:35:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:35:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-02 20:35:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-02 20:35:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2022-11-02 20:35:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2022-11-02 20:35:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2022-11-02 20:35:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2022-11-02 20:35:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2022-11-02 20:35:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2022-11-02 20:35:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2022-11-02 20:35:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2022-11-02 20:35:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2022-11-02 20:35:43,073 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2022-11-02 20:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:35:43,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2022-11-02 20:35:43,073 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2022-11-02 20:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-02 20:35:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-02 20:35:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:35:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:35:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2022-11-02 20:35:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2022-11-02 20:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:35:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_43 [2022-11-02 20:35:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_43 [2022-11-02 20:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-02 20:35:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-02 20:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2022-11-02 20:35:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2022-11-02 20:35:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-02 20:35:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-02 20:35:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-02 20:35:43,079 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-02 20:35:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2022-11-02 20:35:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2022-11-02 20:35:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:35:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:35:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2022-11-02 20:35:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2022-11-02 20:35:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-11-02 20:35:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-11-02 20:35:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2022-11-02 20:35:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2022-11-02 20:35:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-11-02 20:35:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-11-02 20:35:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2022-11-02 20:35:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2022-11-02 20:35:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-11-02 20:35:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-11-02 20:35:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-11-02 20:35:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-11-02 20:35:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:35:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-11-02 20:35:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-11-02 20:35:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2022-11-02 20:35:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2022-11-02 20:35:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-02 20:35:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:35:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2022-11-02 20:35:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2022-11-02 20:35:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-11-02 20:35:43,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-11-02 20:35:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2022-11-02 20:35:43,086 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2022-11-02 20:35:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_18 [2022-11-02 20:35:43,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_18 [2022-11-02 20:35:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2022-11-02 20:35:43,088 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2022-11-02 20:35:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2022-11-02 20:35:43,089 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2022-11-02 20:35:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2022-11-02 20:35:43,090 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2022-11-02 20:35:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:35:43,091 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:35:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2022-11-02 20:35:43,092 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2022-11-02 20:35:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:35:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure read_int_callback [2022-11-02 20:35:43,093 INFO L138 BoogieDeclarations]: Found implementation of procedure read_int_callback [2022-11-02 20:35:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-02 20:35:43,093 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-02 20:35:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:35:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-02 20:35:43,093 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-02 20:35:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_statmsg [2022-11-02 20:35:43,094 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_statmsg [2022-11-02 20:35:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-02 20:35:43,094 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-02 20:35:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure read_ctrl_callback [2022-11-02 20:35:43,095 INFO L138 BoogieDeclarations]: Found implementation of procedure read_ctrl_callback [2022-11-02 20:35:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-02 20:35:43,095 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-02 20:35:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2022-11-02 20:35:43,097 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2022-11-02 20:35:43,099 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-02 20:35:43,100 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-02 20:35:43,100 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2022-11-02 20:35:43,100 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2022-11-02 20:35:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-02 20:35:43,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-02 20:35:43,103 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2022-11-02 20:35:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2022-11-02 20:35:43,103 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 20:35:43,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 20:35:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-11-02 20:35:43,110 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-11-02 20:35:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-11-02 20:35:43,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-11-02 20:35:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2022-11-02 20:35:43,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2022-11-02 20:35:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2022-11-02 20:35:43,111 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2022-11-02 20:35:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:35:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2022-11-02 20:35:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2022-11-02 20:35:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-02 20:35:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-02 20:35:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-02 20:35:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-02 20:35:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2022-11-02 20:35:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2022-11-02 20:35:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-02 20:35:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-02 20:35:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2022-11-02 20:35:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2022-11-02 20:35:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2022-11-02 20:35:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2022-11-02 20:35:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2022-11-02 20:35:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2022-11-02 20:35:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:35:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:35:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:35:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2022-11-02 20:35:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2022-11-02 20:35:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:35:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:35:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2022-11-02 20:35:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2022-11-02 20:35:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:35:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-02 20:35:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-02 20:35:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-11-02 20:35:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-11-02 20:35:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2022-11-02 20:35:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2022-11-02 20:35:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2022-11-02 20:35:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2022-11-02 20:35:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2022-11-02 20:35:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2022-11-02 20:35:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:35:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure write_command_callback [2022-11-02 20:35:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure write_command_callback [2022-11-02 20:35:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2022-11-02 20:35:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2022-11-02 20:35:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-02 20:35:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-02 20:35:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:35:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-02 20:35:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:35:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:35:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-11-02 20:35:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-11-02 20:35:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-02 20:35:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-02 20:35:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-02 20:35:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-02 20:35:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-02 20:35:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-02 20:35:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2022-11-02 20:35:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2022-11-02 20:35:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-02 20:35:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-02 20:35:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-02 20:35:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-02 20:35:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2022-11-02 20:35:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2022-11-02 20:35:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-02 20:35:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-02 20:35:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure write_ctrl_callback [2022-11-02 20:35:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure write_ctrl_callback [2022-11-02 20:35:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure read_iso_callback [2022-11-02 20:35:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure read_iso_callback [2022-11-02 20:35:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_41 [2022-11-02 20:35:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_41 [2022-11-02 20:35:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-02 20:35:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-02 20:35:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-02 20:35:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-02 20:35:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:35:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2022-11-02 20:35:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2022-11-02 20:35:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2022-11-02 20:35:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2022-11-02 20:35:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-02 20:35:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-02 20:35:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:35:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:35:44,032 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:35:44,037 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:35:44,402 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:35:46,175 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-02 20:35:51,846 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:35:51,878 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:35:51,878 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:35:51,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:35:51 BoogieIcfgContainer [2022-11-02 20:35:51,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:35:51,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:35:51,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:35:51,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:35:51,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:35:38" (1/3) ... [2022-11-02 20:35:51,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724ffd7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:35:51, skipping insertion in model container [2022-11-02 20:35:51,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:42" (2/3) ... [2022-11-02 20:35:51,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724ffd7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:35:51, skipping insertion in model container [2022-11-02 20:35:51,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:35:51" (3/3) ... [2022-11-02 20:35:51,894 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-02 20:35:51,917 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:35:51,917 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:35:52,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:35:52,012 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;@52dd2bde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:35:52,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:35:52,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 2085 states, 1440 states have (on average 1.3743055555555554) internal successors, (1979), 1515 states have internal predecessors, (1979), 541 states have call successors, (541), 104 states have call predecessors, (541), 102 states have return successors, (531), 502 states have call predecessors, (531), 531 states have call successors, (531) [2022-11-02 20:35:52,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-02 20:35:52,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:35:52,043 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:35:52,044 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:35:52,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:35:52,049 INFO L85 PathProgramCache]: Analyzing trace with hash -670781513, now seen corresponding path program 1 times [2022-11-02 20:35:52,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:35:52,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873431933] [2022-11-02 20:35:52,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:35:52,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:35:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:35:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:54,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:35:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:35:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:54,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:35:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:35:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:54,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 20:35:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 20:35:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-02 20:35:54,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:35:54,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873431933] [2022-11-02 20:35:54,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873431933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:35:54,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:35:54,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:35:54,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905158169] [2022-11-02 20:35:54,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:35:54,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:35:54,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:35:54,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:35:54,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:35:54,380 INFO L87 Difference]: Start difference. First operand has 2085 states, 1440 states have (on average 1.3743055555555554) internal successors, (1979), 1515 states have internal predecessors, (1979), 541 states have call successors, (541), 104 states have call predecessors, (541), 102 states have return successors, (531), 502 states have call predecessors, (531), 531 states have call successors, (531) Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-02 20:36:21,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:21,877 INFO L93 Difference]: Finished difference Result 9256 states and 14100 transitions. [2022-11-02 20:36:21,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:36:21,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2022-11-02 20:36:21,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:21,979 INFO L225 Difference]: With dead ends: 9256 [2022-11-02 20:36:21,980 INFO L226 Difference]: Without dead ends: 7134 [2022-11-02 20:36:22,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2022-11-02 20:36:22,013 INFO L413 NwaCegarLoop]: 3494 mSDtfsCounter, 11290 mSDsluCounter, 10821 mSDsCounter, 0 mSdLazyCounter, 13595 mSolverCounterSat, 6127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11934 SdHoareTripleChecker+Valid, 14315 SdHoareTripleChecker+Invalid, 19722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6127 IncrementalHoareTripleChecker+Valid, 13595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:22,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11934 Valid, 14315 Invalid, 19722 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6127 Valid, 13595 Invalid, 0 Unknown, 0 Unchecked, 26.0s Time] [2022-11-02 20:36:22,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7134 states. [2022-11-02 20:36:22,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7134 to 6003. [2022-11-02 20:36:22,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 4161 states have (on average 1.3703436673876472) internal successors, (5702), 4340 states have internal predecessors, (5702), 1541 states have call successors, (1541), 301 states have call predecessors, (1541), 300 states have return successors, (1536), 1449 states have call predecessors, (1536), 1536 states have call successors, (1536) [2022-11-02 20:36:22,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 8779 transitions. [2022-11-02 20:36:22,588 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 8779 transitions. Word has length 66 [2022-11-02 20:36:22,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:22,589 INFO L495 AbstractCegarLoop]: Abstraction has 6003 states and 8779 transitions. [2022-11-02 20:36:22,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-02 20:36:22,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 8779 transitions. [2022-11-02 20:36:22,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-02 20:36:22,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:22,595 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:36:22,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:36:22,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:22,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:22,596 INFO L85 PathProgramCache]: Analyzing trace with hash -174989572, now seen corresponding path program 1 times [2022-11-02 20:36:22,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:22,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883787373] [2022-11-02 20:36:22,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:22,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:23,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:36:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:23,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:36:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:23,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:36:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:23,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:36:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:23,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:36:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:23,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 20:36:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:23,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:36:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:23,979 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-02 20:36:23,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:23,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883787373] [2022-11-02 20:36:23,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883787373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:23,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:23,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:36:23,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947020397] [2022-11-02 20:36:23,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:23,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:23,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:23,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:23,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:23,984 INFO L87 Difference]: Start difference. First operand 6003 states and 8779 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-02 20:36:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:43,512 INFO L93 Difference]: Finished difference Result 22292 states and 34407 transitions. [2022-11-02 20:36:43,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:36:43,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2022-11-02 20:36:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:43,655 INFO L225 Difference]: With dead ends: 22292 [2022-11-02 20:36:43,655 INFO L226 Difference]: Without dead ends: 16315 [2022-11-02 20:36:43,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:36:43,702 INFO L413 NwaCegarLoop]: 3203 mSDtfsCounter, 7293 mSDsluCounter, 5673 mSDsCounter, 0 mSdLazyCounter, 6424 mSolverCounterSat, 4767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7690 SdHoareTripleChecker+Valid, 8876 SdHoareTripleChecker+Invalid, 11191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4767 IncrementalHoareTripleChecker+Valid, 6424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:43,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7690 Valid, 8876 Invalid, 11191 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4767 Valid, 6424 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2022-11-02 20:36:43,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16315 states. [2022-11-02 20:36:44,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16315 to 13400. [2022-11-02 20:36:44,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13400 states, 9271 states have (on average 1.358753101067846) internal successors, (12597), 9673 states have internal predecessors, (12597), 3367 states have call successors, (3367), 600 states have call predecessors, (3367), 761 states have return successors, (4245), 3329 states have call predecessors, (4245), 3362 states have call successors, (4245) [2022-11-02 20:36:44,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13400 states to 13400 states and 20209 transitions. [2022-11-02 20:36:44,862 INFO L78 Accepts]: Start accepts. Automaton has 13400 states and 20209 transitions. Word has length 69 [2022-11-02 20:36:44,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:44,863 INFO L495 AbstractCegarLoop]: Abstraction has 13400 states and 20209 transitions. [2022-11-02 20:36:44,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-02 20:36:44,864 INFO L276 IsEmpty]: Start isEmpty. Operand 13400 states and 20209 transitions. [2022-11-02 20:36:44,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-02 20:36:44,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:44,868 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:36:44,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:36:44,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:44,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:44,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1130675884, now seen corresponding path program 1 times [2022-11-02 20:36:44,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:44,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427085434] [2022-11-02 20:36:44,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:44,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:45,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:36:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:45,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:36:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:45,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:36:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:36:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:45,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:36:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:45,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 20:36:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:45,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:36:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:45,997 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-02 20:36:45,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:45,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427085434] [2022-11-02 20:36:45,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427085434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:45,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:45,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:36:45,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858763689] [2022-11-02 20:36:45,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:45,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:45,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:46,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:46,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:46,000 INFO L87 Difference]: Start difference. First operand 13400 states and 20209 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-02 20:36:54,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:03,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:03,860 INFO L93 Difference]: Finished difference Result 45943 states and 72646 transitions. [2022-11-02 20:37:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:37:03,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 70 [2022-11-02 20:37:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:04,090 INFO L225 Difference]: With dead ends: 45943 [2022-11-02 20:37:04,091 INFO L226 Difference]: Without dead ends: 32569 [2022-11-02 20:37:04,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:37:04,195 INFO L413 NwaCegarLoop]: 3272 mSDtfsCounter, 7222 mSDsluCounter, 5633 mSDsCounter, 0 mSdLazyCounter, 6477 mSolverCounterSat, 4685 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7623 SdHoareTripleChecker+Valid, 8905 SdHoareTripleChecker+Invalid, 11162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4685 IncrementalHoareTripleChecker+Valid, 6477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:04,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7623 Valid, 8905 Invalid, 11162 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4685 Valid, 6477 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2022-11-02 20:37:04,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32569 states. [2022-11-02 20:37:06,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32569 to 28183. [2022-11-02 20:37:06,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28183 states, 19480 states have (on average 1.3529774127310061) internal successors, (26356), 20328 states have internal predecessors, (26356), 7019 states have call successors, (7019), 1198 states have call predecessors, (7019), 1683 states have return successors, (10164), 7089 states have call predecessors, (10164), 7014 states have call successors, (10164) [2022-11-02 20:37:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28183 states to 28183 states and 43539 transitions. [2022-11-02 20:37:06,463 INFO L78 Accepts]: Start accepts. Automaton has 28183 states and 43539 transitions. Word has length 70 [2022-11-02 20:37:06,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:06,463 INFO L495 AbstractCegarLoop]: Abstraction has 28183 states and 43539 transitions. [2022-11-02 20:37:06,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-02 20:37:06,464 INFO L276 IsEmpty]: Start isEmpty. Operand 28183 states and 43539 transitions. [2022-11-02 20:37:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-02 20:37:06,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:06,468 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:06,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:37:06,468 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:06,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:06,469 INFO L85 PathProgramCache]: Analyzing trace with hash -692175617, now seen corresponding path program 1 times [2022-11-02 20:37:06,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:06,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767267095] [2022-11-02 20:37:06,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:06,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:07,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:37:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:07,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:37:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:07,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:37:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:07,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:37:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:37:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:07,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 20:37:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:07,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:37:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:07,385 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-02 20:37:07,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:07,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767267095] [2022-11-02 20:37:07,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767267095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:07,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:07,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:37:07,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23111669] [2022-11-02 20:37:07,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:07,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:37:07,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:07,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:37:07,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:37:07,389 INFO L87 Difference]: Start difference. First operand 28183 states and 43539 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-02 20:37:22,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:22,303 INFO L93 Difference]: Finished difference Result 32567 states and 50788 transitions. [2022-11-02 20:37:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:37:22,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2022-11-02 20:37:22,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:22,508 INFO L225 Difference]: With dead ends: 32567 [2022-11-02 20:37:22,508 INFO L226 Difference]: Without dead ends: 32564 [2022-11-02 20:37:22,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:37:22,533 INFO L413 NwaCegarLoop]: 3278 mSDtfsCounter, 8597 mSDsluCounter, 4795 mSDsCounter, 0 mSdLazyCounter, 5437 mSolverCounterSat, 6295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8999 SdHoareTripleChecker+Valid, 8073 SdHoareTripleChecker+Invalid, 11732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6295 IncrementalHoareTripleChecker+Valid, 5437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:22,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8999 Valid, 8073 Invalid, 11732 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6295 Valid, 5437 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2022-11-02 20:37:22,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32564 states. [2022-11-02 20:37:24,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32564 to 28184. [2022-11-02 20:37:24,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28184 states, 19481 states have (on average 1.3529592936707562) internal successors, (26357), 20329 states have internal predecessors, (26357), 7019 states have call successors, (7019), 1198 states have call predecessors, (7019), 1683 states have return successors, (10164), 7089 states have call predecessors, (10164), 7014 states have call successors, (10164) [2022-11-02 20:37:24,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28184 states to 28184 states and 43540 transitions. [2022-11-02 20:37:24,858 INFO L78 Accepts]: Start accepts. Automaton has 28184 states and 43540 transitions. Word has length 71 [2022-11-02 20:37:24,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:24,861 INFO L495 AbstractCegarLoop]: Abstraction has 28184 states and 43540 transitions. [2022-11-02 20:37:24,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-02 20:37:24,862 INFO L276 IsEmpty]: Start isEmpty. Operand 28184 states and 43540 transitions. [2022-11-02 20:37:24,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-02 20:37:24,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:24,865 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:24,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:37:24,865 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:24,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:24,866 INFO L85 PathProgramCache]: Analyzing trace with hash 16435639, now seen corresponding path program 1 times [2022-11-02 20:37:24,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:24,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675182977] [2022-11-02 20:37:24,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:24,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:25,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:37:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:25,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:37:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:25,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:37:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:25,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:37:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:25,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:37:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:25,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 20:37:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:25,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:37:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-02 20:37:25,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:25,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675182977] [2022-11-02 20:37:25,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675182977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:25,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:25,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:37:25,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568961882] [2022-11-02 20:37:25,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:25,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:37:25,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:25,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:37:25,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:37:25,361 INFO L87 Difference]: Start difference. First operand 28184 states and 43540 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-02 20:37:35,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:35,124 INFO L93 Difference]: Finished difference Result 32563 states and 50784 transitions. [2022-11-02 20:37:35,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:37:35,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 72 [2022-11-02 20:37:35,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:35,314 INFO L225 Difference]: With dead ends: 32563 [2022-11-02 20:37:35,314 INFO L226 Difference]: Without dead ends: 32560 [2022-11-02 20:37:35,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:37:35,334 INFO L413 NwaCegarLoop]: 2705 mSDtfsCounter, 5703 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 3716 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5998 SdHoareTripleChecker+Valid, 5259 SdHoareTripleChecker+Invalid, 6148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3716 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:35,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5998 Valid, 5259 Invalid, 6148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3716 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-02 20:37:35,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32560 states. [2022-11-02 20:37:37,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32560 to 28183. [2022-11-02 20:37:37,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28183 states, 19481 states have (on average 1.3529079616036137) internal successors, (26356), 20328 states have internal predecessors, (26356), 7018 states have call successors, (7018), 1198 states have call predecessors, (7018), 1683 states have return successors, (10164), 7089 states have call predecessors, (10164), 7014 states have call successors, (10164) [2022-11-02 20:37:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28183 states to 28183 states and 43538 transitions. [2022-11-02 20:37:37,627 INFO L78 Accepts]: Start accepts. Automaton has 28183 states and 43538 transitions. Word has length 72 [2022-11-02 20:37:37,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:37,628 INFO L495 AbstractCegarLoop]: Abstraction has 28183 states and 43538 transitions. [2022-11-02 20:37:37,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-02 20:37:37,629 INFO L276 IsEmpty]: Start isEmpty. Operand 28183 states and 43538 transitions. [2022-11-02 20:37:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-02 20:37:37,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:37,632 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:37,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:37:37,633 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:37,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash 508552962, now seen corresponding path program 1 times [2022-11-02 20:37:37,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:37,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025653031] [2022-11-02 20:37:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:37,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:38,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:37:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:38,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:37:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:37:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:37:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:38,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:37:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:38,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 20:37:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:37:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:38,208 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-02 20:37:38,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:38,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025653031] [2022-11-02 20:37:38,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025653031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:38,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:38,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:37:38,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792680203] [2022-11-02 20:37:38,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:38,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:37:38,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:38,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:37:38,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:37:38,212 INFO L87 Difference]: Start difference. First operand 28183 states and 43538 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-02 20:37:47,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:47,892 INFO L93 Difference]: Finished difference Result 32562 states and 50782 transitions. [2022-11-02 20:37:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:37:47,897 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 73 [2022-11-02 20:37:47,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:48,056 INFO L225 Difference]: With dead ends: 32562 [2022-11-02 20:37:48,056 INFO L226 Difference]: Without dead ends: 32505 [2022-11-02 20:37:48,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:37:48,083 INFO L413 NwaCegarLoop]: 2775 mSDtfsCounter, 5608 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 2447 mSolverCounterSat, 3636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5899 SdHoareTripleChecker+Valid, 5342 SdHoareTripleChecker+Invalid, 6083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3636 IncrementalHoareTripleChecker+Valid, 2447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:48,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5899 Valid, 5342 Invalid, 6083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3636 Valid, 2447 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-02 20:37:48,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32505 states. [2022-11-02 20:37:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32505 to 28128. [2022-11-02 20:37:50,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28128 states, 19439 states have (on average 1.3530016976181902) internal successors, (26301), 20285 states have internal predecessors, (26301), 7007 states have call successors, (7007), 1196 states have call predecessors, (7007), 1681 states have return successors, (10154), 7079 states have call predecessors, (10154), 7004 states have call successors, (10154) [2022-11-02 20:37:50,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28128 states to 28128 states and 43462 transitions. [2022-11-02 20:37:50,813 INFO L78 Accepts]: Start accepts. Automaton has 28128 states and 43462 transitions. Word has length 73 [2022-11-02 20:37:50,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:50,813 INFO L495 AbstractCegarLoop]: Abstraction has 28128 states and 43462 transitions. [2022-11-02 20:37:50,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-02 20:37:50,814 INFO L276 IsEmpty]: Start isEmpty. Operand 28128 states and 43462 transitions. [2022-11-02 20:37:50,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-02 20:37:50,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:50,888 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:50,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:37:50,889 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:50,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:50,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1434636321, now seen corresponding path program 1 times [2022-11-02 20:37:50,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:50,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105190836] [2022-11-02 20:37:50,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:50,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:37:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:37:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:37:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:37:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:37:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 20:37:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:37:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:37:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 20:37:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-02 20:37:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 20:37:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:37:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 20:37:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 20:37:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:37:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 20:37:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:37:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:37:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:37:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-02 20:37:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:37:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-02 20:37:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:37:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-02 20:37:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-02 20:37:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-02 20:37:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-02 20:37:51,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:51,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105190836] [2022-11-02 20:37:51,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105190836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:51,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:51,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:37:51,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038814015] [2022-11-02 20:37:51,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:51,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:37:51,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:51,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:37:51,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:37:51,612 INFO L87 Difference]: Start difference. First operand 28128 states and 43462 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (27), 9 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-02 20:38:09,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:29,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:29,885 INFO L93 Difference]: Finished difference Result 107323 states and 168875 transitions. [2022-11-02 20:38:29,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-02 20:38:29,886 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (27), 9 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 202 [2022-11-02 20:38:29,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:30,512 INFO L225 Difference]: With dead ends: 107323 [2022-11-02 20:38:30,512 INFO L226 Difference]: Without dead ends: 79221 [2022-11-02 20:38:30,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2022-11-02 20:38:30,693 INFO L413 NwaCegarLoop]: 3036 mSDtfsCounter, 15840 mSDsluCounter, 8069 mSDsCounter, 0 mSdLazyCounter, 13304 mSolverCounterSat, 15137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16339 SdHoareTripleChecker+Valid, 11105 SdHoareTripleChecker+Invalid, 28441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15137 IncrementalHoareTripleChecker+Valid, 13304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:30,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16339 Valid, 11105 Invalid, 28441 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15137 Valid, 13304 Invalid, 0 Unknown, 0 Unchecked, 32.0s Time] [2022-11-02 20:38:30,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79221 states. [2022-11-02 20:38:34,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79221 to 55835. [2022-11-02 20:38:34,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55835 states, 38043 states have (on average 1.3446889046605157) internal successors, (51156), 39808 states have internal predecessors, (51156), 14629 states have call successors, (14629), 2299 states have call predecessors, (14629), 3162 states have return successors, (18808), 14782 states have call predecessors, (18808), 14626 states have call successors, (18808) [2022-11-02 20:38:35,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55835 states to 55835 states and 84593 transitions. [2022-11-02 20:38:35,161 INFO L78 Accepts]: Start accepts. Automaton has 55835 states and 84593 transitions. Word has length 202 [2022-11-02 20:38:35,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:35,162 INFO L495 AbstractCegarLoop]: Abstraction has 55835 states and 84593 transitions. [2022-11-02 20:38:35,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (27), 9 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-02 20:38:35,162 INFO L276 IsEmpty]: Start isEmpty. Operand 55835 states and 84593 transitions. [2022-11-02 20:38:35,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-02 20:38:35,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:35,262 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:35,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:38:35,263 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:35,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:35,264 INFO L85 PathProgramCache]: Analyzing trace with hash 262525336, now seen corresponding path program 1 times [2022-11-02 20:38:35,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:35,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911777174] [2022-11-02 20:38:35,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:35,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:38:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:38:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:38:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:38:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:38:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 20:38:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:38:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-02 20:38:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 20:38:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 20:38:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:38:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 20:38:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:38:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:38:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 20:38:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-02 20:38:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:38:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 20:38:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:38:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:38:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:38:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-02 20:38:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:38:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-02 20:38:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:38:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-02 20:38:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-02 20:38:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-02 20:38:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-02 20:38:36,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:36,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911777174] [2022-11-02 20:38:36,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911777174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:36,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:36,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:38:36,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041640685] [2022-11-02 20:38:36,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:36,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:38:36,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:36,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:38:36,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:38:36,212 INFO L87 Difference]: Start difference. First operand 55835 states and 84593 transitions. Second operand has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (29), 9 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-02 20:38:52,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:53,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []