./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 e04fb08f 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_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/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_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-e04fb08 [2022-11-16 12:07:20,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:07:20,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:07:20,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:07:20,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:07:20,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:07:20,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:07:20,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:07:20,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:07:20,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:07:20,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:07:20,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:07:20,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:07:20,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:07:20,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:07:20,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:07:20,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:07:20,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:07:20,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:07:20,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:07:20,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:07:20,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:07:20,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:07:20,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:07:20,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:07:20,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:07:20,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:07:20,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:07:20,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:07:20,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:07:20,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:07:20,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:07:20,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:07:20,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:07:20,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:07:20,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:07:20,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:07:20,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:07:20,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:07:20,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:07:20,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:07:20,593 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:07:20,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:07:20,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:07:20,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:07:20,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:07:20,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:07:20,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:07:20,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:07:20,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:07:20,653 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:07:20,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:07:20,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:07:20,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:07:20,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:07:20,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:07:20,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:07:20,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:07:20,657 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:07:20,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:07:20,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:07:20,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:07:20,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:07:20,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:07:20,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:07:20,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:07:20,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:07:20,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:07:20,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:07:20,663 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:07:20,663 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:07:20,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:07:20,664 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_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d [2022-11-16 12:07:21,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:07:21,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:07:21,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:07:21,112 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:07:21,113 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:07:21,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/../../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 [2022-11-16 12:07:21,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/data/dda8054a2/512c3d94e1384c8e92d3b81066b23c7a/FLAG52b39b272 [2022-11-16 12:07:22,463 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:07:22,464 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/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 [2022-11-16 12:07:22,560 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/data/dda8054a2/512c3d94e1384c8e92d3b81066b23c7a/FLAG52b39b272 [2022-11-16 12:07:22,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/data/dda8054a2/512c3d94e1384c8e92d3b81066b23c7a [2022-11-16 12:07:22,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:07:22,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:07:22,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:07:22,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:07:22,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:07:22,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:07:22" (1/1) ... [2022-11-16 12:07:22,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3724272a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:22, skipping insertion in model container [2022-11-16 12:07:22,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:07:22" (1/1) ... [2022-11-16 12:07:22,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:07:22,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:07:24,717 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/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] [2022-11-16 12:07:26,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:07:26,539 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:07:26,767 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/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] [2022-11-16 12:07:27,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:07:27,496 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:07:27,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27 WrapperNode [2022-11-16 12:07:27,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:07:27,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:07:27,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:07:27,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:07:27,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (1/1) ... [2022-11-16 12:07:27,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (1/1) ... [2022-11-16 12:07:27,997 INFO L138 Inliner]: procedures = 318, calls = 3934, calls flagged for inlining = 135, calls inlined = 109, statements flattened = 6388 [2022-11-16 12:07:27,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:07:27,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:07:27,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:07:27,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:07:28,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (1/1) ... [2022-11-16 12:07:28,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (1/1) ... [2022-11-16 12:07:28,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (1/1) ... [2022-11-16 12:07:28,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (1/1) ... [2022-11-16 12:07:28,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (1/1) ... [2022-11-16 12:07:28,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (1/1) ... [2022-11-16 12:07:28,406 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (1/1) ... [2022-11-16 12:07:28,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (1/1) ... [2022-11-16 12:07:28,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:07:28,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:07:28,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:07:28,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:07:28,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (1/1) ... [2022-11-16 12:07:28,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:07:28,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:07:28,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:07:28,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2e449f-17e1-46fa-9bd6-f3c2ec0d5ddf/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:07:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2022-11-16 12:07:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2022-11-16 12:07:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-16 12:07:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-16 12:07:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2022-11-16 12:07:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2022-11-16 12:07:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2022-11-16 12:07:28,602 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2022-11-16 12:07:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2022-11-16 12:07:28,602 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2022-11-16 12:07:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 12:07:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 12:07:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2022-11-16 12:07:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2022-11-16 12:07:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-16 12:07:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-16 12:07:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2022-11-16 12:07:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2022-11-16 12:07:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 12:07:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 12:07:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2022-11-16 12:07:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2022-11-16 12:07:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:07:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:07:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-16 12:07:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-16 12:07:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2022-11-16 12:07:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2022-11-16 12:07:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2022-11-16 12:07:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2022-11-16 12:07:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2022-11-16 12:07:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2022-11-16 12:07:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2022-11-16 12:07:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2022-11-16 12:07:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2022-11-16 12:07:28,608 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2022-11-16 12:07:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:07:28,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:07:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2022-11-16 12:07:28,609 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2022-11-16 12:07:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 12:07:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 12:07:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:07:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:07:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2022-11-16 12:07:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2022-11-16 12:07:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:07:28,612 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:07:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_43 [2022-11-16 12:07:28,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_43 [2022-11-16 12:07:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-16 12:07:28,613 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-16 12:07:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2022-11-16 12:07:28,614 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2022-11-16 12:07:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-16 12:07:28,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-16 12:07:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-16 12:07:28,617 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-16 12:07:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2022-11-16 12:07:28,618 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2022-11-16 12:07:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 12:07:28,618 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 12:07:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2022-11-16 12:07:28,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2022-11-16 12:07:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-11-16 12:07:28,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-11-16 12:07:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2022-11-16 12:07:28,621 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2022-11-16 12:07:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-11-16 12:07:28,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-11-16 12:07:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2022-11-16 12:07:28,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2022-11-16 12:07:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-11-16 12:07:28,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-11-16 12:07:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-11-16 12:07:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-11-16 12:07:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:07:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-11-16 12:07:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-11-16 12:07:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2022-11-16 12:07:28,625 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2022-11-16 12:07:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 12:07:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:07:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2022-11-16 12:07:28,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2022-11-16 12:07:28,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-11-16 12:07:28,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-11-16 12:07:28,626 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2022-11-16 12:07:28,626 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2022-11-16 12:07:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_18 [2022-11-16 12:07:28,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_18 [2022-11-16 12:07:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2022-11-16 12:07:28,629 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2022-11-16 12:07:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2022-11-16 12:07:28,629 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2022-11-16 12:07:28,630 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2022-11-16 12:07:28,631 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2022-11-16 12:07:28,631 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 12:07:28,631 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 12:07:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2022-11-16 12:07:28,633 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2022-11-16 12:07:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:07:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure read_int_callback [2022-11-16 12:07:28,634 INFO L138 BoogieDeclarations]: Found implementation of procedure read_int_callback [2022-11-16 12:07:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-16 12:07:28,634 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-16 12:07:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:07:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-16 12:07:28,635 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-16 12:07:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_statmsg [2022-11-16 12:07:28,635 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_statmsg [2022-11-16 12:07:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-16 12:07:28,636 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-16 12:07:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure read_ctrl_callback [2022-11-16 12:07:28,637 INFO L138 BoogieDeclarations]: Found implementation of procedure read_ctrl_callback [2022-11-16 12:07:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 12:07:28,637 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 12:07:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2022-11-16 12:07:28,639 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2022-11-16 12:07:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 12:07:28,643 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 12:07:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2022-11-16 12:07:28,643 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2022-11-16 12:07:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 12:07:28,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 12:07:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2022-11-16 12:07:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2022-11-16 12:07:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 12:07:28,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 12:07:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-11-16 12:07:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-11-16 12:07:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-11-16 12:07:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-11-16 12:07:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2022-11-16 12:07:28,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2022-11-16 12:07:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2022-11-16 12:07:28,656 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2022-11-16 12:07:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:07:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2022-11-16 12:07:28,656 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2022-11-16 12:07:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-16 12:07:28,657 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-16 12:07:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-16 12:07:28,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-16 12:07:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2022-11-16 12:07:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2022-11-16 12:07:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-16 12:07:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-16 12:07:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2022-11-16 12:07:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2022-11-16 12:07:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2022-11-16 12:07:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2022-11-16 12:07:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2022-11-16 12:07:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2022-11-16 12:07:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 12:07:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 12:07:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:07:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2022-11-16 12:07:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2022-11-16 12:07:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:07:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:07:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2022-11-16 12:07:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2022-11-16 12:07:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:07:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-16 12:07:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-16 12:07:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-11-16 12:07:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-11-16 12:07:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2022-11-16 12:07:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2022-11-16 12:07:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2022-11-16 12:07:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2022-11-16 12:07:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2022-11-16 12:07:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2022-11-16 12:07:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:07:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure write_command_callback [2022-11-16 12:07:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure write_command_callback [2022-11-16 12:07:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2022-11-16 12:07:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2022-11-16 12:07:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-16 12:07:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-16 12:07:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:07:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 12:07:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:07:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:07:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-11-16 12:07:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-11-16 12:07:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-16 12:07:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-16 12:07:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-16 12:07:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-16 12:07:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 12:07:28,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 12:07:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2022-11-16 12:07:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2022-11-16 12:07:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-16 12:07:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-16 12:07:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-16 12:07:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-16 12:07:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2022-11-16 12:07:28,670 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2022-11-16 12:07:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-16 12:07:28,670 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-16 12:07:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure write_ctrl_callback [2022-11-16 12:07:28,671 INFO L138 BoogieDeclarations]: Found implementation of procedure write_ctrl_callback [2022-11-16 12:07:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure read_iso_callback [2022-11-16 12:07:28,671 INFO L138 BoogieDeclarations]: Found implementation of procedure read_iso_callback [2022-11-16 12:07:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_41 [2022-11-16 12:07:28,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_41 [2022-11-16 12:07:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-16 12:07:28,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-16 12:07:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-16 12:07:28,672 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-16 12:07:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:07:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2022-11-16 12:07:28,672 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2022-11-16 12:07:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2022-11-16 12:07:28,673 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2022-11-16 12:07:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-16 12:07:28,673 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-16 12:07:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:07:28,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:07:29,776 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:07:29,782 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:07:30,319 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 12:07:31,962 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-16 12:07:39,165 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:07:39,204 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:07:39,204 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:07:39,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:07:39 BoogieIcfgContainer [2022-11-16 12:07:39,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:07:39,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:07:39,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:07:39,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:07:39,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:07:22" (1/3) ... [2022-11-16 12:07:39,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cbbfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:07:39, skipping insertion in model container [2022-11-16 12:07:39,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:27" (2/3) ... [2022-11-16 12:07:39,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cbbfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:07:39, skipping insertion in model container [2022-11-16 12:07:39,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:07:39" (3/3) ... [2022-11-16 12:07:39,225 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-16 12:07:39,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:07:39,249 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:07:39,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:07:39,414 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;@738d8af0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:07:39,414 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:07:39,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 2076 states, 1431 states have (on average 1.3731656184486374) internal successors, (1965), 1506 states have internal predecessors, (1965), 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) [2022-11-16 12:07:39,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-16 12:07:39,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:07:39,482 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] [2022-11-16 12:07:39,483 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:07:39,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:39,494 INFO L85 PathProgramCache]: Analyzing trace with hash -26004711, now seen corresponding path program 1 times [2022-11-16 12:07:39,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:39,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016309733] [2022-11-16 12:07:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:39,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:42,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:07:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:42,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:07:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:07:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:42,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:07:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:07:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:42,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:07:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:42,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 12:07:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-16 12:07:42,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:42,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016309733] [2022-11-16 12:07:42,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016309733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:42,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:42,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:07:42,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593218010] [2022-11-16 12:07:42,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:42,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:07:42,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:42,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:07:42,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:07:42,404 INFO L87 Difference]: Start difference. First operand has 2076 states, 1431 states have (on average 1.3731656184486374) internal successors, (1965), 1506 states have internal predecessors, (1965), 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) [2022-11-16 12:08:15,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:08:15,968 INFO L93 Difference]: Finished difference Result 9220 states and 14044 transitions. [2022-11-16 12:08:15,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:08:15,971 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 [2022-11-16 12:08:15,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:08:16,095 INFO L225 Difference]: With dead ends: 9220 [2022-11-16 12:08:16,095 INFO L226 Difference]: Without dead ends: 7107 [2022-11-16 12:08:16,127 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 [2022-11-16 12:08:16,135 INFO L413 NwaCegarLoop]: 2980 mSDtfsCounter, 11539 mSDsluCounter, 10591 mSDsCounter, 0 mSdLazyCounter, 13985 mSolverCounterSat, 6029 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12183 SdHoareTripleChecker+Valid, 13571 SdHoareTripleChecker+Invalid, 20014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 6029 IncrementalHoareTripleChecker+Valid, 13985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:08:16,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12183 Valid, 13571 Invalid, 20014 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [6029 Valid, 13985 Invalid, 0 Unknown, 0 Unchecked, 31.7s Time] [2022-11-16 12:08:16,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7107 states. [2022-11-16 12:08:16,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7107 to 5976. [2022-11-16 12:08:16,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5976 states, 4134 states have (on average 1.3691340106434446) internal successors, (5660), 4313 states have internal predecessors, (5660), 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) [2022-11-16 12:08:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5976 states to 5976 states and 8737 transitions. [2022-11-16 12:08:16,813 INFO L78 Accepts]: Start accepts. Automaton has 5976 states and 8737 transitions. Word has length 66 [2022-11-16 12:08:16,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:08:16,815 INFO L495 AbstractCegarLoop]: Abstraction has 5976 states and 8737 transitions. [2022-11-16 12:08:16,816 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) [2022-11-16 12:08:16,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5976 states and 8737 transitions. [2022-11-16 12:08:16,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:08:16,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:08:16,829 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] [2022-11-16 12:08:16,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:08:16,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:08:16,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:16,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1171543769, now seen corresponding path program 1 times [2022-11-16 12:08:16,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:16,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183202761] [2022-11-16 12:08:16,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:16,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:18,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:08:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:18,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:08:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:18,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:08:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:18,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:08:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:18,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:08:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:18,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:08:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:18,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:08:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:18,425 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-16 12:08:18,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:18,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183202761] [2022-11-16 12:08:18,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183202761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:18,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:18,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:08:18,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346767616] [2022-11-16 12:08:18,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:18,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:08:18,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:18,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:08:18,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:08:18,431 INFO L87 Difference]: Start difference. First operand 5976 states and 8737 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) [2022-11-16 12:08:29,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:08:41,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:08:41,914 INFO L93 Difference]: Finished difference Result 22199 states and 34263 transitions. [2022-11-16 12:08:41,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:08:41,915 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 [2022-11-16 12:08:41,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:08:42,073 INFO L225 Difference]: With dead ends: 22199 [2022-11-16 12:08:42,074 INFO L226 Difference]: Without dead ends: 16249 [2022-11-16 12:08:42,129 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 [2022-11-16 12:08:42,131 INFO L413 NwaCegarLoop]: 2697 mSDtfsCounter, 7406 mSDsluCounter, 5624 mSDsCounter, 0 mSdLazyCounter, 6907 mSolverCounterSat, 4578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7802 SdHoareTripleChecker+Valid, 8321 SdHoareTripleChecker+Invalid, 11485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4578 IncrementalHoareTripleChecker+Valid, 6907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:08:42,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7802 Valid, 8321 Invalid, 11485 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4578 Valid, 6907 Invalid, 0 Unknown, 0 Unchecked, 22.0s Time] [2022-11-16 12:08:42,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16249 states. [2022-11-16 12:08:43,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16249 to 13340. [2022-11-16 12:08:43,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13340 states, 9211 states have (on average 1.35750732819455) internal successors, (12504), 9613 states have internal predecessors, (12504), 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) [2022-11-16 12:08:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13340 states to 13340 states and 20116 transitions. [2022-11-16 12:08:43,490 INFO L78 Accepts]: Start accepts. Automaton has 13340 states and 20116 transitions. Word has length 69 [2022-11-16 12:08:43,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:08:43,490 INFO L495 AbstractCegarLoop]: Abstraction has 13340 states and 20116 transitions. [2022-11-16 12:08:43,492 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) [2022-11-16 12:08:43,492 INFO L276 IsEmpty]: Start isEmpty. Operand 13340 states and 20116 transitions. [2022-11-16 12:08:43,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-16 12:08:43,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:08:43,498 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] [2022-11-16 12:08:43,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:08:43,498 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:08:43,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:43,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1957151569, now seen corresponding path program 1 times [2022-11-16 12:08:43,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:43,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357273773] [2022-11-16 12:08:43,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:43,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:44,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:08:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:44,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:08:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:44,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:08:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:44,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:08:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:44,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:08:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:44,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:08:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:44,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:08:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:45,016 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-16 12:08:45,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:45,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357273773] [2022-11-16 12:08:45,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357273773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:45,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:45,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:08:45,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452894124] [2022-11-16 12:08:45,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:45,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:08:45,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:45,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:08:45,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:08:45,020 INFO L87 Difference]: Start difference. First operand 13340 states and 20116 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) [2022-11-16 12:09:06,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:06,156 INFO L93 Difference]: Finished difference Result 45751 states and 72349 transitions. [2022-11-16 12:09:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:09:06,157 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 [2022-11-16 12:09:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:06,449 INFO L225 Difference]: With dead ends: 45751 [2022-11-16 12:09:06,449 INFO L226 Difference]: Without dead ends: 32437 [2022-11-16 12:09:06,573 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 [2022-11-16 12:09:06,574 INFO L413 NwaCegarLoop]: 2743 mSDtfsCounter, 8659 mSDsluCounter, 4780 mSDsCounter, 0 mSdLazyCounter, 5965 mSolverCounterSat, 6072 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9061 SdHoareTripleChecker+Valid, 7523 SdHoareTripleChecker+Invalid, 12037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6072 IncrementalHoareTripleChecker+Valid, 5965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:06,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9061 Valid, 7523 Invalid, 12037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6072 Valid, 5965 Invalid, 0 Unknown, 0 Unchecked, 19.0s Time] [2022-11-16 12:09:06,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32437 states. [2022-11-16 12:09:09,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32437 to 28057. [2022-11-16 12:09:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28057 states, 19354 states have (on average 1.3517102407771004) internal successors, (26161), 20202 states have internal predecessors, (26161), 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) [2022-11-16 12:09:09,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28057 states to 28057 states and 43344 transitions. [2022-11-16 12:09:09,702 INFO L78 Accepts]: Start accepts. Automaton has 28057 states and 43344 transitions. Word has length 70 [2022-11-16 12:09:09,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:09,703 INFO L495 AbstractCegarLoop]: Abstraction has 28057 states and 43344 transitions. [2022-11-16 12:09:09,703 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) [2022-11-16 12:09:09,703 INFO L276 IsEmpty]: Start isEmpty. Operand 28057 states and 43344 transitions. [2022-11-16 12:09:09,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-16 12:09:09,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:09,709 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] [2022-11-16 12:09:09,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:09:09,709 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:09,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:09,710 INFO L85 PathProgramCache]: Analyzing trace with hash 541194460, now seen corresponding path program 1 times [2022-11-16 12:09:09,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:09,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365193499] [2022-11-16 12:09:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:09,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:10,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:09:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:10,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:09:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:10,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:09:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:10,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:09:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:10,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:09:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:10,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:09:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:10,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:09:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:10,374 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-16 12:09:10,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:10,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365193499] [2022-11-16 12:09:10,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365193499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:10,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:10,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:09:10,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084249058] [2022-11-16 12:09:10,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:10,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:09:10,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:10,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:09:10,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:09:10,379 INFO L87 Difference]: Start difference. First operand 28057 states and 43344 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) [2022-11-16 12:09:21,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:32,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:32,370 INFO L93 Difference]: Finished difference Result 32435 states and 50584 transitions. [2022-11-16 12:09:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:09:32,372 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 [2022-11-16 12:09:32,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:32,648 INFO L225 Difference]: With dead ends: 32435 [2022-11-16 12:09:32,648 INFO L226 Difference]: Without dead ends: 32432 [2022-11-16 12:09:32,676 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 [2022-11-16 12:09:32,680 INFO L413 NwaCegarLoop]: 2696 mSDtfsCounter, 8714 mSDsluCounter, 4807 mSDsCounter, 0 mSdLazyCounter, 5921 mSolverCounterSat, 6087 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9115 SdHoareTripleChecker+Valid, 7503 SdHoareTripleChecker+Invalid, 12008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6087 IncrementalHoareTripleChecker+Valid, 5921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:32,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9115 Valid, 7503 Invalid, 12008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6087 Valid, 5921 Invalid, 0 Unknown, 0 Unchecked, 20.0s Time] [2022-11-16 12:09:32,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32432 states. [2022-11-16 12:09:35,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32432 to 28058. [2022-11-16 12:09:35,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28058 states, 19355 states have (on average 1.3516920692327563) internal successors, (26162), 20203 states have internal predecessors, (26162), 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) [2022-11-16 12:09:35,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28058 states to 28058 states and 43345 transitions. [2022-11-16 12:09:35,714 INFO L78 Accepts]: Start accepts. Automaton has 28058 states and 43345 transitions. Word has length 71 [2022-11-16 12:09:35,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:35,715 INFO L495 AbstractCegarLoop]: Abstraction has 28058 states and 43345 transitions. [2022-11-16 12:09:35,716 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) [2022-11-16 12:09:35,716 INFO L276 IsEmpty]: Start isEmpty. Operand 28058 states and 43345 transitions. [2022-11-16 12:09:35,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-16 12:09:35,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:35,721 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] [2022-11-16 12:09:35,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:09:35,722 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:35,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:35,722 INFO L85 PathProgramCache]: Analyzing trace with hash -403798092, now seen corresponding path program 1 times [2022-11-16 12:09:35,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:35,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170471141] [2022-11-16 12:09:35,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:35,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:36,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:09:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:36,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:09:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:36,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:09:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:36,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:09:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:36,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:09:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:36,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:09:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:09:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:36,480 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-16 12:09:36,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:36,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170471141] [2022-11-16 12:09:36,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170471141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:36,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:36,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:09:36,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490076634] [2022-11-16 12:09:36,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:36,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:09:36,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:36,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:09:36,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:09:36,484 INFO L87 Difference]: Start difference. First operand 28058 states and 43345 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) [2022-11-16 12:09:50,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:50,283 INFO L93 Difference]: Finished difference Result 32431 states and 50580 transitions. [2022-11-16 12:09:50,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:09:50,284 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 [2022-11-16 12:09:50,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:50,533 INFO L225 Difference]: With dead ends: 32431 [2022-11-16 12:09:50,533 INFO L226 Difference]: Without dead ends: 32428 [2022-11-16 12:09:50,562 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 [2022-11-16 12:09:50,562 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 5051 mSDsluCounter, 3255 mSDsCounter, 0 mSdLazyCounter, 3493 mSolverCounterSat, 2761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5350 SdHoareTripleChecker+Valid, 5494 SdHoareTripleChecker+Invalid, 6254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2761 IncrementalHoareTripleChecker+Valid, 3493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:50,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5350 Valid, 5494 Invalid, 6254 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2761 Valid, 3493 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2022-11-16 12:09:50,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32428 states. [2022-11-16 12:09:52,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32428 to 28057. [2022-11-16 12:09:52,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28057 states, 19355 states have (on average 1.3516404029966418) internal successors, (26161), 20202 states have internal predecessors, (26161), 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) [2022-11-16 12:09:53,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28057 states to 28057 states and 43343 transitions. [2022-11-16 12:09:53,193 INFO L78 Accepts]: Start accepts. Automaton has 28057 states and 43343 transitions. Word has length 72 [2022-11-16 12:09:53,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:53,196 INFO L495 AbstractCegarLoop]: Abstraction has 28057 states and 43343 transitions. [2022-11-16 12:09:53,196 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) [2022-11-16 12:09:53,196 INFO L276 IsEmpty]: Start isEmpty. Operand 28057 states and 43343 transitions. [2022-11-16 12:09:53,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-16 12:09:53,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:53,201 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] [2022-11-16 12:09:53,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:09:53,205 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:53,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:53,206 INFO L85 PathProgramCache]: Analyzing trace with hash 366208735, now seen corresponding path program 1 times [2022-11-16 12:09:53,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:53,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140416614] [2022-11-16 12:09:53,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:53,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:09:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:09:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:53,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:09:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:53,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:09:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:53,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:09:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:53,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:09:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:53,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:09:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:53,842 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-16 12:09:53,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:53,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140416614] [2022-11-16 12:09:53,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140416614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:53,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:53,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:09:53,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157354501] [2022-11-16 12:09:53,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:53,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:09:53,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:53,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:09:53,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:09:53,846 INFO L87 Difference]: Start difference. First operand 28057 states and 43343 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) [2022-11-16 12:10:07,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:07,584 INFO L93 Difference]: Finished difference Result 32430 states and 50578 transitions. [2022-11-16 12:10:07,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:10:07,591 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 [2022-11-16 12:10:07,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:07,833 INFO L225 Difference]: With dead ends: 32430 [2022-11-16 12:10:07,834 INFO L226 Difference]: Without dead ends: 32373 [2022-11-16 12:10:07,869 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 [2022-11-16 12:10:07,870 INFO L413 NwaCegarLoop]: 2201 mSDtfsCounter, 5787 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 3599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6079 SdHoareTripleChecker+Valid, 4737 SdHoareTripleChecker+Invalid, 6515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3599 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:07,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6079 Valid, 4737 Invalid, 6515 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3599 Valid, 2916 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2022-11-16 12:10:07,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32373 states. [2022-11-16 12:10:10,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32373 to 28002. [2022-11-16 12:10:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28002 states, 19313 states have (on average 1.351731993993683) internal successors, (26106), 20159 states have internal predecessors, (26106), 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) [2022-11-16 12:10:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28002 states to 28002 states and 43267 transitions. [2022-11-16 12:10:10,761 INFO L78 Accepts]: Start accepts. Automaton has 28002 states and 43267 transitions. Word has length 73 [2022-11-16 12:10:10,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:10,762 INFO L495 AbstractCegarLoop]: Abstraction has 28002 states and 43267 transitions. [2022-11-16 12:10:10,762 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) [2022-11-16 12:10:10,763 INFO L276 IsEmpty]: Start isEmpty. Operand 28002 states and 43267 transitions. [2022-11-16 12:10:10,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-16 12:10:10,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:10,875 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] [2022-11-16 12:10:10,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:10:10,876 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:10:10,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:10,876 INFO L85 PathProgramCache]: Analyzing trace with hash -260187333, now seen corresponding path program 1 times [2022-11-16 12:10:10,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:10,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500070225] [2022-11-16 12:10:10,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:10,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:10:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:10:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:10:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:10:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:10:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:10:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:10:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 12:10:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:10:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:10:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:10:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:10:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 12:10:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 12:10:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:10:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:10:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:10:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 12:10:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:10:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:10:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:11,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:10:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:12,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 12:10:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:12,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-16 12:10:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:12,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-16 12:10:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:12,062 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 12:10:12,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:12,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500070225] [2022-11-16 12:10:12,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500070225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:12,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:12,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:10:12,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038119729] [2022-11-16 12:10:12,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:12,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:10:12,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:12,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:10:12,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:10:12,066 INFO L87 Difference]: Start difference. First operand 28002 states and 43267 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) [2022-11-16 12:10:34,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:38,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:40,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:42,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:06,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:06,845 INFO L93 Difference]: Finished difference Result 106837 states and 168128 transitions. [2022-11-16 12:11:06,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-16 12:11:06,846 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 [2022-11-16 12:11:06,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:07,756 INFO L225 Difference]: With dead ends: 106837 [2022-11-16 12:11:07,756 INFO L226 Difference]: Without dead ends: 78861 [2022-11-16 12:11:08,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2022-11-16 12:11:08,067 INFO L413 NwaCegarLoop]: 2350 mSDtfsCounter, 16196 mSDsluCounter, 8013 mSDsCounter, 0 mSdLazyCounter, 13911 mSolverCounterSat, 14880 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16694 SdHoareTripleChecker+Valid, 10363 SdHoareTripleChecker+Invalid, 28792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 14880 IncrementalHoareTripleChecker+Valid, 13911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:08,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16694 Valid, 10363 Invalid, 28792 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [14880 Valid, 13911 Invalid, 1 Unknown, 0 Unchecked, 46.6s Time] [2022-11-16 12:11:08,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78861 states. [2022-11-16 12:11:14,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78861 to 55559. [2022-11-16 12:11:14,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55559 states, 37767 states have (on average 1.343236158551116) internal successors, (50730), 39532 states have internal predecessors, (50730), 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) [2022-11-16 12:11:15,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55559 states to 55559 states and 84167 transitions. [2022-11-16 12:11:15,150 INFO L78 Accepts]: Start accepts. Automaton has 55559 states and 84167 transitions. Word has length 202 [2022-11-16 12:11:15,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:15,151 INFO L495 AbstractCegarLoop]: Abstraction has 55559 states and 84167 transitions. [2022-11-16 12:11:15,151 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) [2022-11-16 12:11:15,151 INFO L276 IsEmpty]: Start isEmpty. Operand 55559 states and 84167 transitions. [2022-11-16 12:11:15,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-16 12:11:15,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:15,281 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] [2022-11-16 12:11:15,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:11:15,282 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:11:15,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:15,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1494715425, now seen corresponding path program 1 times [2022-11-16 12:11:15,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:15,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447662761] [2022-11-16 12:11:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:15,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:11:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:11:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:11:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:11:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:11:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:11:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:11:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 12:11:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:11:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:11:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:11:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:11:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:11:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:11:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-16 12:11:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 12:11:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:11:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:11:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:11:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 12:11:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:11:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:11:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:11:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-16 12:11:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-16 12:11:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:17,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-16 12:11:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-16 12:11:17,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:17,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447662761] [2022-11-16 12:11:17,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447662761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:17,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:17,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:11:17,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852740997] [2022-11-16 12:11:17,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:17,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:11:17,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:17,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:11:17,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:11:17,023 INFO L87 Difference]: Start difference. First operand 55559 states and 84167 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) [2022-11-16 12:11:35,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:38,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:40,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:58,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:58,951 INFO L93 Difference]: Finished difference Result 140431 states and 227772 transitions. [2022-11-16 12:11:58,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:11:58,952 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 232 [2022-11-16 12:11:58,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:59,576 INFO L225 Difference]: With dead ends: 140431 [2022-11-16 12:11:59,576 INFO L226 Difference]: Without dead ends: 84898 [2022-11-16 12:11:59,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2022-11-16 12:11:59,849 INFO L413 NwaCegarLoop]: 2611 mSDtfsCounter, 11245 mSDsluCounter, 11541 mSDsCounter, 0 mSdLazyCounter, 10840 mSolverCounterSat, 9966 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11615 SdHoareTripleChecker+Valid, 14152 SdHoareTripleChecker+Invalid, 20807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9966 IncrementalHoareTripleChecker+Valid, 10840 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:59,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11615 Valid, 14152 Invalid, 20807 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9966 Valid, 10840 Invalid, 1 Unknown, 0 Unchecked, 31.6s Time] [2022-11-16 12:11:59,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84898 states. [2022-11-16 12:12:06,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84898 to 55591. [2022-11-16 12:12:06,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55591 states, 37799 states have (on average 1.3427868462128627) internal successors, (50756), 39564 states have internal predecessors, (50756), 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) [2022-11-16 12:12:07,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55591 states to 55591 states and 84193 transitions. [2022-11-16 12:12:07,121 INFO L78 Accepts]: Start accepts. Automaton has 55591 states and 84193 transitions. Word has length 232 [2022-11-16 12:12:07,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:07,122 INFO L495 AbstractCegarLoop]: Abstraction has 55591 states and 84193 transitions. [2022-11-16 12:12:07,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-11-16 12:12:07,122 INFO L276 IsEmpty]: Start isEmpty. Operand 55591 states and 84193 transitions. [2022-11-16 12:12:07,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-16 12:12:07,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:07,503 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, 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] [2022-11-16 12:12:07,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:12:07,503 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:12:07,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:07,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1254091088, now seen corresponding path program 1 times [2022-11-16 12:12:07,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:07,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936746668] [2022-11-16 12:12:07,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:07,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:12:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:12:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:12:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:12:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:12:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:12:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:12:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 12:12:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:12:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:12:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:12:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:12:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-16 12:12:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:12:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 12:12:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-16 12:12:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:12:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:12:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 12:12:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 12:12:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:12:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 12:12:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:12:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-16 12:12:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-16 12:12:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-11-16 12:12:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-16 12:12:08,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:08,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936746668] [2022-11-16 12:12:08,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936746668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:08,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:08,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:12:08,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956471498] [2022-11-16 12:12:08,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:08,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:12:08,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:08,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:12:08,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:12:08,681 INFO L87 Difference]: Start difference. First operand 55591 states and 84193 transitions. Second operand has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (29), 9 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28)