./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:09:18,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:09:18,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:09:18,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:09:18,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:09:18,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:09:18,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:09:18,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:09:18,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:09:18,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:09:18,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:09:18,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:09:18,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:09:18,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:09:18,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:09:18,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:09:18,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:09:18,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:09:18,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:09:18,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:09:18,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:09:18,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:09:18,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:09:18,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:09:18,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:09:18,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:09:18,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:09:18,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:09:18,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:09:18,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:09:18,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:09:18,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:09:18,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:09:18,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:09:18,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:09:18,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:09:18,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:09:18,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:09:18,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:09:18,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:09:18,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:09:18,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:09:18,479 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:09:18,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:09:18,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:09:18,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:09:18,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:09:18,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:09:18,486 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:09:18,487 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:09:18,487 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:09:18,487 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:09:18,488 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:09:18,489 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:09:18,490 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:09:18,491 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:09:18,491 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:09:18,492 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:09:18,492 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:09:18,492 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:09:18,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:09:18,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:09:18,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:09:18,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:09:18,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:09:18,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:09:18,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:09:18,497 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:09:18,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:09:18,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:09:18,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:09:18,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:09:18,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:09:18,499 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:09:18,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:09:18,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:09:18,500 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:09:18,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:09:18,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:09:18,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:09:18,501 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_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 [2022-11-03 02:09:18,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:09:18,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:09:18,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:09:18,792 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:09:18,793 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:09:18,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2022-11-03 02:09:18,867 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/data/29931c1d9/db3f2baf099a4eefb1544ac33f6b042e/FLAG6dccd9fb5 [2022-11-03 02:09:19,811 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:09:19,814 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2022-11-03 02:09:19,895 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/data/29931c1d9/db3f2baf099a4eefb1544ac33f6b042e/FLAG6dccd9fb5 [2022-11-03 02:09:20,196 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/data/29931c1d9/db3f2baf099a4eefb1544ac33f6b042e [2022-11-03 02:09:20,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:09:20,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:09:20,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:09:20,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:09:20,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:09:20,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:09:20" (1/1) ... [2022-11-03 02:09:20,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4054d43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:20, skipping insertion in model container [2022-11-03 02:09:20,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:09:20" (1/1) ... [2022-11-03 02:09:20,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:09:20,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:09:22,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2022-11-03 02:09:22,588 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:09:22,591 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:09:22,591 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:09:22,596 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:09:23,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:09:23,738 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:09:24,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2022-11-03 02:09:24,172 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:09:24,175 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:09:24,176 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:09:24,180 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:09:24,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:09:24,655 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:09:24,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24 WrapperNode [2022-11-03 02:09:24,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:09:24,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:09:24,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:09:24,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:09:24,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (1/1) ... [2022-11-03 02:09:24,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (1/1) ... [2022-11-03 02:09:24,989 INFO L138 Inliner]: procedures = 352, calls = 6445, calls flagged for inlining = 152, calls inlined = 32, statements flattened = 4275 [2022-11-03 02:09:24,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:09:24,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:09:24,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:09:24,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:09:25,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (1/1) ... [2022-11-03 02:09:25,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (1/1) ... [2022-11-03 02:09:25,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (1/1) ... [2022-11-03 02:09:25,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (1/1) ... [2022-11-03 02:09:25,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (1/1) ... [2022-11-03 02:09:25,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (1/1) ... [2022-11-03 02:09:25,190 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (1/1) ... [2022-11-03 02:09:25,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (1/1) ... [2022-11-03 02:09:25,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:09:25,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:09:25,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:09:25,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:09:25,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (1/1) ... [2022-11-03 02:09:25,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:09:25,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:09:25,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:09:25,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:09:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2022-11-03 02:09:25,336 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2022-11-03 02:09:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-03 02:09:25,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-03 02:09:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-03 02:09:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:09:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:09:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2022-11-03 02:09:25,337 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2022-11-03 02:09:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 02:09:25,337 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 02:09:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:09:25,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:09:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-03 02:09:25,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-03 02:09:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2022-11-03 02:09:25,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2022-11-03 02:09:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-03 02:09:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-03 02:09:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:09:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:09:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2022-11-03 02:09:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2022-11-03 02:09:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:09:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:09:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_enterconfigmode [2022-11-03 02:09:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_enterconfigmode [2022-11-03 02:09:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:09:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:09:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:09:25,341 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:09:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure if_ioctl [2022-11-03 02:09:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure if_ioctl [2022-11-03 02:09:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-03 02:09:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-03 02:09:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:09:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:09:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 02:09:25,343 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 02:09:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmget [2022-11-03 02:09:25,344 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmget [2022-11-03 02:09:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:09:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:09:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:09:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:09:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure if_config [2022-11-03 02:09:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure if_config [2022-11-03 02:09:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 02:09:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 02:09:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure if_chars_in_buffer [2022-11-03 02:09:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer [2022-11-03 02:09:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure if_write_room [2022-11-03 02:09:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure if_write_room [2022-11-03 02:09:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure if_lock [2022-11-03 02:09:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure if_lock [2022-11-03 02:09:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:09:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:09:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure if_throttle [2022-11-03 02:09:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure if_throttle [2022-11-03 02:09:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 02:09:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 02:09:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:09:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 02:09:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 02:09:25,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2022-11-03 02:09:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2022-11-03 02:09:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 02:09:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 02:09:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:09:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:09:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:09:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:09:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:09:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-03 02:09:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:09:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 02:09:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 02:09:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:09:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:09:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:09:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:09:25,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:09:25,354 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-03 02:09:25,354 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-03 02:09:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmset [2022-11-03 02:09:25,355 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmset [2022-11-03 02:09:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-03 02:09:25,355 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-03 02:09:25,356 INFO L130 BoogieDeclarations]: Found specification of procedure if_open [2022-11-03 02:09:25,356 INFO L138 BoogieDeclarations]: Found implementation of procedure if_open [2022-11-03 02:09:25,356 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:09:25,356 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:09:25,356 INFO L130 BoogieDeclarations]: Found specification of procedure setflags [2022-11-03 02:09:25,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setflags [2022-11-03 02:09:25,356 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:09:25,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:09:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure if_unthrottle [2022-11-03 02:09:25,357 INFO L138 BoogieDeclarations]: Found implementation of procedure if_unthrottle [2022-11-03 02:09:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:09:25,358 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 02:09:25,358 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 02:09:25,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:09:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:09:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:09:25,363 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:09:25,872 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:09:25,875 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:09:26,309 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-03 02:09:26,309 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-03 02:09:26,337 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:09:26,340 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:09:26,630 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false;call ULTIMATE.dealloc(if_version_~#version~0#1.base, if_version_~#version~0#1.offset);havoc if_version_~#version~0#1.base, if_version_~#version~0#1.offset;call ULTIMATE.dealloc(if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset);havoc if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset;call ULTIMATE.dealloc(if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset);havoc if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset; [2022-11-03 02:09:26,632 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2022-11-03 02:09:26,632 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume !false; [2022-11-03 02:09:26,632 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##52: assume false; [2022-11-03 02:09:26,632 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2022-11-03 02:09:26,632 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2022-11-03 02:09:26,632 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2022-11-03 02:09:26,633 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2022-11-03 02:09:26,633 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2022-11-03 02:09:26,633 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2022-11-03 02:09:26,634 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2022-11-03 02:09:26,634 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2022-11-03 02:09:26,852 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2022-11-03 02:09:26,852 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2022-11-03 02:09:26,852 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012-1: ~tmp~4#1.base, ~tmp~4#1.offset := #t~ret76#1.base, #t~ret76#1.offset;havoc #t~ret76#1.base, #t~ret76#1.offset;~__ptr~0#1.base, ~__ptr~0#1.offset := ~tmp~4#1.base, ~tmp~4#1.offset; [2022-11-03 02:09:26,853 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012: SUMMARY for call #t~ret76#1.base, #t~ret76#1.offset := get_current(); srcloc: null [2022-11-03 02:09:26,854 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:09:26,855 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:09:26,857 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:09:26,964 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2022-11-03 02:09:26,964 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2022-11-03 02:09:26,964 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2022-11-03 02:09:26,965 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2022-11-03 02:09:26,965 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2022-11-03 02:09:26,965 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2022-11-03 02:09:27,254 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:10:37,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2022-11-03 02:10:37,363 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2022-11-03 02:10:37,416 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:10:38,238 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:10:38,238 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 02:10:38,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:10:38 BoogieIcfgContainer [2022-11-03 02:10:38,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:10:38,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:10:38,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:10:38,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:10:38,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:09:20" (1/3) ... [2022-11-03 02:10:38,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d176b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:10:38, skipping insertion in model container [2022-11-03 02:10:38,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:24" (2/3) ... [2022-11-03 02:10:38,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d176b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:10:38, skipping insertion in model container [2022-11-03 02:10:38,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:10:38" (3/3) ... [2022-11-03 02:10:38,258 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2022-11-03 02:10:38,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:10:38,279 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:10:38,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:10:38,380 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=FINITE_AUTOMATA, 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;@7a3dbb43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:10:38,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:10:38,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 483 states, 322 states have (on average 1.4037267080745341) internal successors, (452), 335 states have internal predecessors, (452), 117 states have call successors, (117), 43 states have call predecessors, (117), 43 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2022-11-03 02:10:38,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 02:10:38,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:38,393 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:10:38,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:10:38,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:38,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1639507856, now seen corresponding path program 1 times [2022-11-03 02:10:38,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:38,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971003367] [2022-11-03 02:10:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:38,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:39,620 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:10:39,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:39,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971003367] [2022-11-03 02:10:39,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971003367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:39,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:39,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:10:39,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272619360] [2022-11-03 02:10:39,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:39,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:10:39,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:39,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:10:39,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:39,667 INFO L87 Difference]: Start difference. First operand has 483 states, 322 states have (on average 1.4037267080745341) internal successors, (452), 335 states have internal predecessors, (452), 117 states have call successors, (117), 43 states have call predecessors, (117), 43 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:10:40,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:10:41,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:41,905 INFO L93 Difference]: Finished difference Result 1416 states and 2086 transitions. [2022-11-03 02:10:41,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:10:41,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-11-03 02:10:41,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:41,928 INFO L225 Difference]: With dead ends: 1416 [2022-11-03 02:10:41,928 INFO L226 Difference]: Without dead ends: 934 [2022-11-03 02:10:41,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:41,938 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 642 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:41,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1326 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-03 02:10:41,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2022-11-03 02:10:42,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 929. [2022-11-03 02:10:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 622 states have (on average 1.4019292604501608) internal successors, (872), 645 states have internal predecessors, (872), 223 states have call successors, (223), 84 states have call predecessors, (223), 83 states have return successors, (243), 219 states have call predecessors, (243), 221 states have call successors, (243) [2022-11-03 02:10:42,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1338 transitions. [2022-11-03 02:10:42,083 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1338 transitions. Word has length 20 [2022-11-03 02:10:42,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:42,084 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1338 transitions. [2022-11-03 02:10:42,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:10:42,085 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1338 transitions. [2022-11-03 02:10:42,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-03 02:10:42,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:42,094 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:10:42,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:10:42,095 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:10:42,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:42,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1750485667, now seen corresponding path program 1 times [2022-11-03 02:10:42,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:42,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977281943] [2022-11-03 02:10:42,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:42,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:10:42,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:42,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977281943] [2022-11-03 02:10:42,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977281943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:42,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:42,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:10:42,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019892736] [2022-11-03 02:10:42,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:42,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:10:42,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:42,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:10:42,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:42,991 INFO L87 Difference]: Start difference. First operand 929 states and 1338 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:10:45,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:10:45,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:45,839 INFO L93 Difference]: Finished difference Result 1985 states and 2895 transitions. [2022-11-03 02:10:45,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:10:45,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2022-11-03 02:10:45,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:45,847 INFO L225 Difference]: With dead ends: 1985 [2022-11-03 02:10:45,848 INFO L226 Difference]: Without dead ends: 1060 [2022-11-03 02:10:45,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:45,852 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 70 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:45,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1208 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 02:10:45,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-11-03 02:10:45,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1060. [2022-11-03 02:10:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 717 states have (on average 1.4142259414225942) internal successors, (1014), 746 states have internal predecessors, (1014), 259 states have call successors, (259), 84 states have call predecessors, (259), 83 states have return successors, (284), 253 states have call predecessors, (284), 257 states have call successors, (284) [2022-11-03 02:10:45,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1557 transitions. [2022-11-03 02:10:45,924 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1557 transitions. Word has length 37 [2022-11-03 02:10:45,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:45,925 INFO L495 AbstractCegarLoop]: Abstraction has 1060 states and 1557 transitions. [2022-11-03 02:10:45,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:10:45,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1557 transitions. [2022-11-03 02:10:45,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 02:10:45,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:45,928 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:10:45,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:10:45,928 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:10:45,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:45,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1482530163, now seen corresponding path program 1 times [2022-11-03 02:10:45,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:45,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711483011] [2022-11-03 02:10:45,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:45,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:10:47,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:47,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711483011] [2022-11-03 02:10:47,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711483011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:47,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:47,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:10:47,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574149793] [2022-11-03 02:10:47,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:47,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:10:47,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:47,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:10:47,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:10:47,799 INFO L87 Difference]: Start difference. First operand 1060 states and 1557 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:10:49,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:10:51,314 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 [] [2022-11-03 02:10:52,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:52,079 INFO L93 Difference]: Finished difference Result 1609 states and 2404 transitions. [2022-11-03 02:10:52,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:10:52,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2022-11-03 02:10:52,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:52,086 INFO L225 Difference]: With dead ends: 1609 [2022-11-03 02:10:52,087 INFO L226 Difference]: Without dead ends: 1068 [2022-11-03 02:10:52,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:10:52,090 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 5 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:52,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1782 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-03 02:10:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-03 02:10:52,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1066. [2022-11-03 02:10:52,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 722 states have (on average 1.4113573407202216) internal successors, (1019), 752 states have internal predecessors, (1019), 259 states have call successors, (259), 84 states have call predecessors, (259), 84 states have return successors, (286), 253 states have call predecessors, (286), 257 states have call successors, (286) [2022-11-03 02:10:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1564 transitions. [2022-11-03 02:10:52,148 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1564 transitions. Word has length 36 [2022-11-03 02:10:52,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:52,149 INFO L495 AbstractCegarLoop]: Abstraction has 1066 states and 1564 transitions. [2022-11-03 02:10:52,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:10:52,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1564 transitions. [2022-11-03 02:10:52,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-03 02:10:52,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:52,152 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:10:52,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:10:52,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:10:52,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:52,154 INFO L85 PathProgramCache]: Analyzing trace with hash -457684627, now seen corresponding path program 1 times [2022-11-03 02:10:52,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:52,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90224111] [2022-11-03 02:10:52,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:52,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:10:54,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:54,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90224111] [2022-11-03 02:10:54,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90224111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:54,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:54,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:10:54,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242833431] [2022-11-03 02:10:54,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:54,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:10:54,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:54,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:10:54,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:10:54,509 INFO L87 Difference]: Start difference. First operand 1066 states and 1564 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 02:10:56,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:10:57,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:10:59,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:00,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:01,739 INFO L93 Difference]: Finished difference Result 1637 states and 2445 transitions. [2022-11-03 02:11:01,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:11:01,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 50 [2022-11-03 02:11:01,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:01,746 INFO L225 Difference]: With dead ends: 1637 [2022-11-03 02:11:01,746 INFO L226 Difference]: Without dead ends: 1092 [2022-11-03 02:11:01,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:11:01,750 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 15 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:01,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2387 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-03 02:11:01,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-11-03 02:11:01,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1078. [2022-11-03 02:11:01,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 732 states have (on average 1.4139344262295082) internal successors, (1035), 762 states have internal predecessors, (1035), 261 states have call successors, (261), 84 states have call predecessors, (261), 84 states have return successors, (288), 255 states have call predecessors, (288), 259 states have call successors, (288) [2022-11-03 02:11:01,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1584 transitions. [2022-11-03 02:11:01,803 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1584 transitions. Word has length 50 [2022-11-03 02:11:01,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:01,804 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1584 transitions. [2022-11-03 02:11:01,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 02:11:01,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1584 transitions. [2022-11-03 02:11:01,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-03 02:11:01,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:01,807 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:11:01,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:11:01,807 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:01,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:01,808 INFO L85 PathProgramCache]: Analyzing trace with hash -936172574, now seen corresponding path program 1 times [2022-11-03 02:11:01,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:01,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134004044] [2022-11-03 02:11:01,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:01,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:11:02,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:02,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134004044] [2022-11-03 02:11:02,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134004044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:02,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:02,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:11:02,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562464044] [2022-11-03 02:11:02,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:02,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:11:02,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:02,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:11:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:11:02,821 INFO L87 Difference]: Start difference. First operand 1078 states and 1584 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 02:11:04,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:05,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:05,939 INFO L93 Difference]: Finished difference Result 2066 states and 3020 transitions. [2022-11-03 02:11:05,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:11:05,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2022-11-03 02:11:05,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:05,947 INFO L225 Difference]: With dead ends: 2066 [2022-11-03 02:11:05,948 INFO L226 Difference]: Without dead ends: 991 [2022-11-03 02:11:05,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:11:05,955 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 3 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:05,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2385 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 327 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 02:11:05,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-11-03 02:11:05,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 988. [2022-11-03 02:11:05,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 668 states have (on average 1.405688622754491) internal successors, (939), 695 states have internal predecessors, (939), 236 states have call successors, (236), 82 states have call predecessors, (236), 83 states have return successors, (261), 231 states have call predecessors, (261), 234 states have call successors, (261) [2022-11-03 02:11:06,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1436 transitions. [2022-11-03 02:11:06,001 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1436 transitions. Word has length 51 [2022-11-03 02:11:06,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:06,001 INFO L495 AbstractCegarLoop]: Abstraction has 988 states and 1436 transitions. [2022-11-03 02:11:06,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 02:11:06,002 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1436 transitions. [2022-11-03 02:11:06,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-03 02:11:06,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:06,004 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:11:06,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:11:06,005 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:06,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:06,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1491633133, now seen corresponding path program 1 times [2022-11-03 02:11:06,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:06,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909441368] [2022-11-03 02:11:06,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:06,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:11:08,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:08,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909441368] [2022-11-03 02:11:08,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909441368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:08,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:08,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:11:08,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605294870] [2022-11-03 02:11:08,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:08,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:11:08,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:08,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:11:08,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:11:08,948 INFO L87 Difference]: Start difference. First operand 988 states and 1436 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:11:10,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:14,027 INFO L93 Difference]: Finished difference Result 1597 states and 2396 transitions. [2022-11-03 02:11:14,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:11:14,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2022-11-03 02:11:14,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:14,041 INFO L225 Difference]: With dead ends: 1597 [2022-11-03 02:11:14,041 INFO L226 Difference]: Without dead ends: 1589 [2022-11-03 02:11:14,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:11:14,044 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 1555 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 1909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:14,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 1418 Invalid, 1909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 02:11:14,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2022-11-03 02:11:14,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1497. [2022-11-03 02:11:14,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 1011 states have (on average 1.3956478733926805) internal successors, (1411), 1049 states have internal predecessors, (1411), 354 states have call successors, (354), 121 states have call predecessors, (354), 131 states have return successors, (456), 358 states have call predecessors, (456), 352 states have call successors, (456) [2022-11-03 02:11:14,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2221 transitions. [2022-11-03 02:11:14,123 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2221 transitions. Word has length 60 [2022-11-03 02:11:14,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:14,124 INFO L495 AbstractCegarLoop]: Abstraction has 1497 states and 2221 transitions. [2022-11-03 02:11:14,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:11:14,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2221 transitions. [2022-11-03 02:11:14,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:11:14,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:14,128 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:11:14,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:11:14,128 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1983923640, now seen corresponding path program 1 times [2022-11-03 02:11:14,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:14,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138877142] [2022-11-03 02:11:14,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:14,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:16,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:11:16,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:16,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138877142] [2022-11-03 02:11:16,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138877142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:16,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:16,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:11:16,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733334708] [2022-11-03 02:11:16,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:16,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:11:16,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:16,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:11:16,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:11:16,564 INFO L87 Difference]: Start difference. First operand 1497 states and 2221 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:11:17,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:19,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:21,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:26,861 INFO L93 Difference]: Finished difference Result 2460 states and 3760 transitions. [2022-11-03 02:11:26,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:11:26,862 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2022-11-03 02:11:26,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:26,884 INFO L225 Difference]: With dead ends: 2460 [2022-11-03 02:11:26,884 INFO L226 Difference]: Without dead ends: 2457 [2022-11-03 02:11:26,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:11:26,887 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 3323 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 2643 mSolverCounterSat, 1360 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3435 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 4004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1360 IncrementalHoareTripleChecker+Valid, 2643 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:26,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3435 Valid, 2646 Invalid, 4004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1360 Valid, 2643 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-11-03 02:11:26,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2022-11-03 02:11:27,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 2352. [2022-11-03 02:11:27,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 1587 states have (on average 1.3793320730938878) internal successors, (2189), 1638 states have internal predecessors, (2189), 554 states have call successors, (554), 163 states have call predecessors, (554), 210 states have return successors, (827), 602 states have call predecessors, (827), 552 states have call successors, (827) [2022-11-03 02:11:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3570 transitions. [2022-11-03 02:11:27,028 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3570 transitions. Word has length 63 [2022-11-03 02:11:27,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:27,028 INFO L495 AbstractCegarLoop]: Abstraction has 2352 states and 3570 transitions. [2022-11-03 02:11:27,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:11:27,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3570 transitions. [2022-11-03 02:11:27,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-03 02:11:27,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:27,048 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:11:27,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:11:27,049 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:27,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:27,050 INFO L85 PathProgramCache]: Analyzing trace with hash 910254462, now seen corresponding path program 1 times [2022-11-03 02:11:27,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:27,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944679514] [2022-11-03 02:11:27,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:27,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:11:27,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:27,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944679514] [2022-11-03 02:11:27,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944679514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:27,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:27,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:11:27,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614174827] [2022-11-03 02:11:27,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:27,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:11:27,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:27,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:11:27,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:11:27,831 INFO L87 Difference]: Start difference. First operand 2352 states and 3570 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 02:11:29,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:32,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:32,601 INFO L93 Difference]: Finished difference Result 2496 states and 3826 transitions. [2022-11-03 02:11:32,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:11:32,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 70 [2022-11-03 02:11:32,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:32,617 INFO L225 Difference]: With dead ends: 2496 [2022-11-03 02:11:32,617 INFO L226 Difference]: Without dead ends: 2491 [2022-11-03 02:11:32,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:11:32,620 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 94 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:32,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 2685 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-03 02:11:32,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2022-11-03 02:11:32,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2352. [2022-11-03 02:11:32,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 1587 states have (on average 1.3780718336483933) internal successors, (2187), 1638 states have internal predecessors, (2187), 554 states have call successors, (554), 163 states have call predecessors, (554), 210 states have return successors, (827), 602 states have call predecessors, (827), 552 states have call successors, (827) [2022-11-03 02:11:32,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3568 transitions. [2022-11-03 02:11:32,745 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3568 transitions. Word has length 70 [2022-11-03 02:11:32,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:32,746 INFO L495 AbstractCegarLoop]: Abstraction has 2352 states and 3568 transitions. [2022-11-03 02:11:32,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 02:11:32,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3568 transitions. [2022-11-03 02:11:32,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-03 02:11:32,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:32,749 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:11:32,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:11:32,749 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:32,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:32,750 INFO L85 PathProgramCache]: Analyzing trace with hash 199854944, now seen corresponding path program 1 times [2022-11-03 02:11:32,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:32,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337334466] [2022-11-03 02:11:32,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:32,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:43,980 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:11:43,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:43,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337334466] [2022-11-03 02:11:43,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337334466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:43,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:43,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:11:43,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140270892] [2022-11-03 02:11:43,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:43,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 02:11:43,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:43,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 02:11:43,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:11:43,982 INFO L87 Difference]: Start difference. First operand 2352 states and 3568 transitions. Second operand has 10 states, 7 states have (on average 6.428571428571429) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-03 02:11:45,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:46,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:48,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:49,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:51,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:54,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:56,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:58,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:58,635 INFO L93 Difference]: Finished difference Result 3758 states and 5855 transitions. [2022-11-03 02:11:58,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:11:58,636 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 6.428571428571429) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 71 [2022-11-03 02:11:58,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:58,651 INFO L225 Difference]: With dead ends: 3758 [2022-11-03 02:11:58,651 INFO L226 Difference]: Without dead ends: 2349 [2022-11-03 02:11:58,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:11:58,659 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 20 mSDsluCounter, 4455 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:58,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4540 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 905 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2022-11-03 02:11:58,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2022-11-03 02:11:58,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 2349. [2022-11-03 02:11:58,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 1585 states have (on average 1.3785488958990537) internal successors, (2185), 1636 states have internal predecessors, (2185), 554 states have call successors, (554), 163 states have call predecessors, (554), 209 states have return successors, (821), 601 states have call predecessors, (821), 552 states have call successors, (821) [2022-11-03 02:11:58,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3560 transitions. [2022-11-03 02:11:58,792 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3560 transitions. Word has length 71 [2022-11-03 02:11:58,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:58,793 INFO L495 AbstractCegarLoop]: Abstraction has 2349 states and 3560 transitions. [2022-11-03 02:11:58,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 6.428571428571429) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-03 02:11:58,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3560 transitions. [2022-11-03 02:11:58,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-03 02:11:58,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:58,796 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:11:58,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:11:58,797 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:58,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:58,797 INFO L85 PathProgramCache]: Analyzing trace with hash -91763230, now seen corresponding path program 1 times [2022-11-03 02:11:58,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:58,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273980037] [2022-11-03 02:11:58,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:58,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:11:59,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:59,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273980037] [2022-11-03 02:11:59,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273980037] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:11:59,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913085566] [2022-11-03 02:11:59,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:59,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:11:59,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:11:59,569 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:11:59,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:12:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:01,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 8261 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:12:01,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:12:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:12:01,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:12:01,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913085566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:01,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:12:01,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-03 02:12:01,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434475193] [2022-11-03 02:12:01,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:01,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:12:01,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:01,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:12:01,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:12:01,185 INFO L87 Difference]: Start difference. First operand 2349 states and 3560 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 02:12:04,134 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 [] [2022-11-03 02:12:04,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:04,823 INFO L93 Difference]: Finished difference Result 3755 states and 5678 transitions. [2022-11-03 02:12:04,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:12:04,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2022-11-03 02:12:04,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:04,841 INFO L225 Difference]: With dead ends: 3755 [2022-11-03 02:12:04,841 INFO L226 Difference]: Without dead ends: 2349 [2022-11-03 02:12:04,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:12:04,849 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 176 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:04,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1256 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 200 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 02:12:04,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2022-11-03 02:12:04,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 2349. [2022-11-03 02:12:04,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 1585 states have (on average 1.3760252365930599) internal successors, (2181), 1636 states have internal predecessors, (2181), 554 states have call successors, (554), 163 states have call predecessors, (554), 209 states have return successors, (821), 601 states have call predecessors, (821), 552 states have call successors, (821) [2022-11-03 02:12:05,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3556 transitions. [2022-11-03 02:12:05,001 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3556 transitions. Word has length 73 [2022-11-03 02:12:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:05,003 INFO L495 AbstractCegarLoop]: Abstraction has 2349 states and 3556 transitions. [2022-11-03 02:12:05,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 02:12:05,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3556 transitions. [2022-11-03 02:12:05,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-03 02:12:05,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:05,015 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:12:05,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 02:12:05,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:12:05,241 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:05,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:05,242 INFO L85 PathProgramCache]: Analyzing trace with hash -2063339512, now seen corresponding path program 1 times [2022-11-03 02:12:05,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:05,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034219527] [2022-11-03 02:12:05,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:05,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:07,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:12:07,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:07,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034219527] [2022-11-03 02:12:07,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034219527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:07,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:07,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 02:12:07,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940582145] [2022-11-03 02:12:07,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:07,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:12:07,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:07,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:12:07,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:12:07,844 INFO L87 Difference]: Start difference. First operand 2349 states and 3556 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-03 02:12:09,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:12:10,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:12:15,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:15,907 INFO L93 Difference]: Finished difference Result 3969 states and 6725 transitions. [2022-11-03 02:12:15,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:12:15,908 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 73 [2022-11-03 02:12:15,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:15,935 INFO L225 Difference]: With dead ends: 3969 [2022-11-03 02:12:15,935 INFO L226 Difference]: Without dead ends: 3961 [2022-11-03 02:12:15,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:12:15,938 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 3790 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 2156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3923 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 4384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2156 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:15,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3923 Valid, 2114 Invalid, 4384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2156 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-11-03 02:12:15,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3961 states. [2022-11-03 02:12:16,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3961 to 3074. [2022-11-03 02:12:16,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3074 states, 2073 states have (on average 1.366136034732272) internal successors, (2832), 2131 states have internal predecessors, (2832), 721 states have call successors, (721), 202 states have call predecessors, (721), 279 states have return successors, (1232), 809 states have call predecessors, (1232), 719 states have call successors, (1232) [2022-11-03 02:12:16,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 4785 transitions. [2022-11-03 02:12:16,161 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 4785 transitions. Word has length 73 [2022-11-03 02:12:16,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:16,161 INFO L495 AbstractCegarLoop]: Abstraction has 3074 states and 4785 transitions. [2022-11-03 02:12:16,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-03 02:12:16,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 4785 transitions. [2022-11-03 02:12:16,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-03 02:12:16,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:16,164 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-03 02:12:16,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:12:16,165 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:16,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:16,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1568401035, now seen corresponding path program 1 times [2022-11-03 02:12:16,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:16,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642774530] [2022-11-03 02:12:16,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:16,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:12:22,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:12:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:12:27,845 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:12:27,845 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:12:27,846 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:12:27,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:12:27,853 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:27,856 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:12:28,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:12:28 BoogieIcfgContainer [2022-11-03 02:12:28,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:12:28,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:12:28,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:12:28,033 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:12:28,034 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:10:38" (3/4) ... [2022-11-03 02:12:28,038 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 02:12:28,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:12:28,041 INFO L158 Benchmark]: Toolchain (without parser) took 187840.95ms. Allocated memory was 113.2MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 77.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 229.1MB. Max. memory is 16.1GB. [2022-11-03 02:12:28,042 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:12:28,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4453.89ms. Allocated memory was 113.2MB in the beginning and 281.0MB in the end (delta: 167.8MB). Free memory was 77.1MB in the beginning and 174.4MB in the end (delta: -97.3MB). Peak memory consumption was 174.2MB. Max. memory is 16.1GB. [2022-11-03 02:12:28,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 334.55ms. Allocated memory is still 281.0MB. Free memory was 174.4MB in the beginning and 142.9MB in the end (delta: 31.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-03 02:12:28,043 INFO L158 Benchmark]: Boogie Preprocessor took 249.56ms. Allocated memory is still 281.0MB. Free memory was 142.9MB in the beginning and 118.8MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-03 02:12:28,043 INFO L158 Benchmark]: RCFGBuilder took 73001.09ms. Allocated memory was 281.0MB in the beginning and 1.1GB in the end (delta: 813.7MB). Free memory was 117.8MB in the beginning and 635.6MB in the end (delta: -517.8MB). Peak memory consumption was 626.2MB. Max. memory is 16.1GB. [2022-11-03 02:12:28,044 INFO L158 Benchmark]: TraceAbstraction took 109786.82ms. Allocated memory was 1.1GB in the beginning and 1.5GB in the end (delta: 438.3MB). Free memory was 635.6MB in the beginning and 1.3GB in the end (delta: -633.1MB). Peak memory consumption was 592.6MB. Max. memory is 16.1GB. [2022-11-03 02:12:28,044 INFO L158 Benchmark]: Witness Printer took 8.52ms. Allocated memory is still 1.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:12:28,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4453.89ms. Allocated memory was 113.2MB in the beginning and 281.0MB in the end (delta: 167.8MB). Free memory was 77.1MB in the beginning and 174.4MB in the end (delta: -97.3MB). Peak memory consumption was 174.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 334.55ms. Allocated memory is still 281.0MB. Free memory was 174.4MB in the beginning and 142.9MB in the end (delta: 31.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 249.56ms. Allocated memory is still 281.0MB. Free memory was 142.9MB in the beginning and 118.8MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 73001.09ms. Allocated memory was 281.0MB in the beginning and 1.1GB in the end (delta: 813.7MB). Free memory was 117.8MB in the beginning and 635.6MB in the end (delta: -517.8MB). Peak memory consumption was 626.2MB. Max. memory is 16.1GB. * TraceAbstraction took 109786.82ms. Allocated memory was 1.1GB in the beginning and 1.5GB in the end (delta: 438.3MB). Free memory was 635.6MB in the beginning and 1.3GB in the end (delta: -633.1MB). Peak memory consumption was 592.6MB. Max. memory is 16.1GB. * Witness Printer took 8.52ms. Allocated memory is still 1.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 7097]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6835, overapproximation of bitwiseAnd at line 7642. Possible FailurePath: [L4814] int gigaset_debuglevel ; [L6831] static struct list_head drivers = {& drivers, & drivers}; [L6832-L6836] static spinlock_t driver_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "driver_lock", 0, 0UL}}}}; [L7093] int LDV_IN_INTERRUPT ; [L7101] int ldv_module_refcounter = 1; [L7611-L7632] static struct tty_operations const if_ops = {(struct tty_struct *(*)(struct tty_driver * , struct inode * , int ))0, (int (*)(struct tty_driver * , struct tty_struct * ))0, (void (*)(struct tty_driver * , struct tty_struct * ))0, & if_open, & if_close, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, & if_write, (int (*)(struct tty_struct * , unsigned char ))0, (void (*)(struct tty_struct * ))0, & if_write_room, & if_chars_in_buffer, & if_ioctl, (long (*)(struct tty_struct * , unsigned int , unsigned long ))0, & if_set_termios, & if_throttle, & if_unthrottle, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, (int (*)(struct tty_struct * , int ))0, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * , int ))0, (void (*)(struct tty_struct * , char ))0, & if_tiocmget, & if_tiocmset, (int (*)(struct tty_struct * , struct winsize * ))0, (int (*)(struct tty_struct * , struct termiox * ))0, (int (*)(struct tty_struct * , struct serial_icounter_struct * ))0, (int (*)(struct tty_driver * , int , char * ))0, (int (*)(struct tty_driver * , int ))0, (void (*)(struct tty_driver * , int , char ))0, (struct file_operations const *)0}; [L9090-L9093] static struct device_attribute dev_attr_cidmode = {{"cidmode", 420U, (struct lock_class_key *)0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_cidmode, & set_cidmode}; [L9169-L9233] struct reply_t gigaset_tab_nocid[64U] = { {-27, -1, -1, 100, 100, 1, {29, 0, 0}, (char *)0}, {-105, 100, 100, -1, 101, 3, {0, 0, 0}, (char *)"Z\r"}, {0, 101, 103, -1, 120, 5, {30, 0, 0}, (char *)"+GMR\r"}, {-105, 101, 101, -1, 102, 5, {0, 0, 0}, (char *)"Z\r"}, {1, 101, 101, -1, 102, 5, {0, 0, 0}, (char *)"Z\r"}, {-105, 102, 102, -1, 108, 5, {1, 0, 0}, (char *)"^SDLE=0\r"}, {0, 108, 108, -1, 104, -1, {0, 0, 0}, (char *)0}, {101, 104, 104, 0, 103, 5, {0, 0, 0}, (char *)"Z\r"}, {-105, 104, 104, -1, 0, 0, {3, 0, 0}, (char *)0}, {1, 108, 108, -1, 0, 0, {3, 0, 0}, (char *)0}, {-105, 108, 108, -1, 105, 2, {2, 4, 29}, (char *)0}, {-105, 105, 105, -1, 103, 5, {0, 0, 0}, (char *)"Z\r"}, {1, 102, 102, -1, 107, 5, {0, 0, 0}, (char *)"^GETPRE\r"}, {0, 107, 107, -1, 0, 0, {5, 0, 0}, (char *)0}, {1, 107, 107, -1, 0, 0, {3, 0, 0}, (char *)0}, {-105, 107, 107, -1, 0, 0, {3, 0, 0}, (char *)0}, {1, 103, 103, -1, 0, 0, {3, 0, 0}, (char *)0}, {-105, 103, 103, -1, 0, 0, {3, 0, 0}, (char *)0}, {-20, 120, 120, -1, 121, -1, {31, 0, 0}, (char *)0}, {-105, 120, 121, -1, 0, 0, {32, 6, 0}, (char *)0}, {1, 120, 121, -1, 0, 0, {32, 6, 0}, (char *)0}, {0, 121, 121, -1, 0, 0, {33, 6, 0}, (char *)0}, {-27, 0, 0, 200, 201, 5, {0, 0, 0}, (char *)"^SDLE=0\r"}, {0, 201, 201, -1, 202, -1, {0, 0, 0}, (char *)0}, {101, 202, 202, 0, 0, 0, {7, 0, 0}, (char *)0}, {-9, 200, 249, -1, 0, 0, {47, 0, 0}, (char *)0}, {1, 200, 249, -1, 0, 0, {9, 0, 0}, (char *)0}, {-105, 200, 249, -1, 0, 0, {9, 0, 0}, (char *)0}, {-27, 0, 0, 250, 251, 5, {0, 0, 0}, (char *)"^SDLE=1\r"}, {0, 251, 251, -1, 252, -1, {0, 0, 0}, (char *)0}, {101, 252, 252, 1, 0, 0, {8, 0, 0}, (char *)0}, {1, 250, 299, -1, 0, 0, {10, 0, 0}, (char *)0}, {-105, 250, 299, -1, 0, 0, {10, 0, 0}, (char *)0}, {4, -1, -1, -1, -1, -1, {11, 0, 0}, (char *)0}, {-27, 0, 0, 300, 301, 5, {0, 0, 0}, (char *)"^SGCI?\r"}, {0, 301, 301, -1, 302, -1, {0, 0, 0}, (char *)0}, {3, 302, 302, -1, 0, 0, {12, 0, 0}, (char *)0}, {1, 301, 349, -1, 0, 0, {13, 0, 0}, (char *)0}, {-105, 301, 349, -1, 0, 0, {13, 0, 0}, (char *)0}, {-27, 0, 0, 10, 150, 5, {0, 0, 0}, (char *)"^SGCI=1\r"}, {0, 150, 150, -1, 0, 0, {54, 0, 0}, (char *)0}, {1, 150, 150, -1, 0, 0, {55, 0, 0}, (char *)0}, {-105, 150, 150, -1, 0, 0, {55, 0, 0}, (char *)0}, {-27, 0, 0, 11, 160, 5, {0, 0, 0}, (char *)"Z\r"}, {0, 160, 160, -1, 0, 0, {52, 0, 0}, (char *)0}, {1, 160, 160, -1, 0, 0, {53, 0, 0}, (char *)0}, {-105, 160, 160, -1, 0, 0, {53, 0, 0}, (char *)0}, {-27, 0, 0, 350, 0, 0, {36, 0, 0}, (char *)0}, {-27, 0, 0, 500, 504, 5, {0, 0, 0}, (char *)"Z\r"}, {0, 504, 504, -1, 0, 0, {14, 0, 0}, (char *)0}, {1, 501, 599, -1, 0, 0, {15, 0, 0}, (char *)0}, {-105, 501, 599, -1, 0, 0, {15, 0, 0}, (char *)0}, {-9, 501, 599, -1, 0, 0, {49, 0, 0}, (char *)0}, {-107, -1, -1, -1, -1, -1, {51, 0, 0}, (char *)0}, {-112, -1, -1, -1, -1, -1, {44, 0, 0}, (char *)0}, {-106, -1, -1, -1, -1, -1, {56, 0, 0}, (char *)0}, {-110, -1, -1, -1, -1, -1, {45, 0, 0}, (char *)0}, {-111, -1, -1, -1, -1, -1, {46, 0, 0}, (char *)0}, {-108, -1, -1, -1, -1, -1, {50, 0, 0}, (char *)0}, {1, -1, -1, -1, -1, -1, {35, 0, 0}, (char *)0}, {6, -1, -1, -1, -1, -1, {37, 0, 0}, (char *)0}, {-19, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0}, {-26, -1, -1, -1, -1, -1, {17, 0, 0}, (char *)0}, {-28, 0, 0, 0, 0, 0, {0, 0, 0}, (char *)0}}; [L9234-L9298] struct reply_t gigaset_tab_cid[64U] = { {-115, -1, -1, -1, -1, -1, {40, 0, 0}, (char *)0}, {-27, 0, 0, 600, 601, 5, {103, 0, 0}, (char *)0}, {0, 601, 601, -1, 603, 5, {104, 0, 0}, (char *)0}, {0, 603, 603, -1, 604, 5, {105, 0, 0}, (char *)0}, {0, 604, 604, -1, 605, 5, {102, 0, 0}, (char *)0}, {-21, 605, 605, -1, 606, 5, {106, 0, 0}, (char *)0}, {0, 605, 605, -1, 606, 5, {106, 0, 0}, (char *)0}, {-21, 606, 606, -1, 607, 5, {100, 0, 0}, (char *)0}, {0, 606, 606, -1, 607, 5, {100, 0, 0}, (char *)0}, {0, 607, 607, -1, 608, 5, {0, 0, 0}, (char *)"+VLS=17\r"}, {0, 608, 608, -1, 609, -1, {0, 0, 0}, (char *)0}, {100, 609, 609, 1, 610, 5, {101, 0, 0}, (char *)0}, {0, 610, 610, -1, 650, 0, {18, 0, 0}, (char *)0}, {1, 601, 610, -1, 0, 0, {19, 0, 0}, (char *)0}, {-105, 601, 610, -1, 0, 0, {19, 0, 0}, (char *)0}, {-117, 650, 650, -1, 651, -1, {0, 0, 0}, (char *)0}, {5, 609, 651, 17, -1, -1, {16, 0, 0}, (char *)0}, {102, 610, 651, -1, -1, -1, {16, 0, 0}, (char *)0}, {104, 610, 651, -1, -1, -1, {16, 0, 0}, (char *)0}, {100, 650, 651, 2, -1, -1, {16, 0, 0}, (char *)0}, {100, 650, 650, 3, 800, -1, {21, 0, 0}, (char *)0}, {100, 651, 651, 3, 800, -1, {21, 39, 0}, (char *)0}, {100, 750, 750, 3, 800, -1, {21, 0, 0}, (char *)0}, {100, 751, 751, 3, 800, -1, {21, 39, 0}, (char *)0}, {-117, 800, 800, -1, 800, -1, {39, 0, 0}, (char *)0}, {100, 650, 651, 4, 0, 0, {22, 0, 0}, (char *)0}, {100, 750, 751, 4, 0, 0, {24, 0, 0}, (char *)0}, {100, 800, 800, 4, 0, 0, {24, 0, 0}, (char *)0}, {-116, -1, -1, -1, -1, -1, {43, 0, 0}, (char *)0}, {-27, -1, -1, 400, 401, 5, {0, 0, 0}, (char *)"+VLS=0\r"}, {0, 401, 401, -1, 402, 5, {0, 0, 0}, (char *)0}, {5, 402, 402, 0, 403, 5, {0, 0, 0}, (char *)0}, {100, 403, 403, 6, -1, -1, {16, 0, 0}, (char *)0}, {100, 403, 403, 5, 0, 0, {20, 0, 0}, (char *)0}, {-9, 401, 403, -1, 0, 0, {48, 0, 0}, (char *)0}, {1, 401, 401, -1, 0, 0, {25, 0, 0}, (char *)0}, {-105, 401, 403, -1, 0, 0, {25, 0, 0}, (char *)0}, {-118, 0, 0, -1, 0, -1, {38, 0, 0}, (char *)0}, {106, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {107, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {103, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {104, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {102, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {-105, 700, 700, -1, 720, 720, {26, 0, 0}, (char *)0}, {-118, 720, 720, -1, 0, -1, {38, 0, 0}, (char *)0}, {-114, -1, -1, -1, -1, -1, {41, 0, 0}, (char *)0}, {-27, 720, 720, 720, 721, 5, {104, 0, 0}, (char *)0}, {0, 721, 721, -1, 722, 5, {100, 0, 0}, (char *)0}, {0, 722, 722, -1, 723, 5, {0, 0, 0}, (char *)"+VLS=17\r"}, {0, 723, 723, -1, 724, 5, {0, 0, 0}, (char *)0}, {5, 724, 724, 17, 750, 50, {27, 0, 0}, (char *)0}, {1, 721, 729, -1, 0, 0, {28, 0, 0}, (char *)0}, {-105, 721, 729, -1, 0, 0, {28, 0, 0}, (char *)0}, {100, 700, 729, 5, 0, 0, {28, 0, 0}, (char *)0}, {100, 700, 729, 3, 0, 0, {28, 0, 0}, (char *)0}, {100, 700, 729, 4, 0, 0, {28, 0, 0}, (char *)0}, {-117, 750, 750, -1, 751, -1, {0, 0, 0}, (char *)0}, {-105, 750, 751, -1, 0, 0, {23, 0, 0}, (char *)0}, {-118, -1, -1, -1, -1, -1, {38, 0, 0}, (char *)0}, {105, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0}, {6, -1, -1, -1, -1, -1, {37, 0, 0}, (char *)0}, {-19, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0}, {-26, -1, -1, -1, -1, -1, {17, 0, 0}, (char *)0}, {-28, 0, 0, 0, 0, 0, {0, 0, 0}, (char *)0}}; [L9299-L9314] static struct resp_type_t const resp_type[15U] = { {(unsigned char *)"OK", 0, 0}, {(unsigned char *)"ERROR", 1, 0}, {(unsigned char *)"ZSAU", 100, 1}, {(unsigned char *)"ZCAU", 6, 6}, {(unsigned char *)"RING", 4, 2}, {(unsigned char *)"ZGCI", 3, 3}, {(unsigned char *)"ZVLS", 5, 3}, {(unsigned char *)"ZCTP", 102, 3}, {(unsigned char *)"ZDLE", 101, 3}, {(unsigned char *)"ZHLC", 107, 4}, {(unsigned char *)"ZBC", 106, 4}, {(unsigned char *)"NMBR", 103, 4}, {(unsigned char *)"ZCPN", 104, 4}, {(unsigned char *)"ZCON", 105, 4}, {(unsigned char *)0, 0, 0}}; [L9315-L9321] static struct zsau_resp_t const zsau_resp[7U] = { {(unsigned char *)"OUTGOING_CALL_PROCEEDING", 1}, {(unsigned char *)"CALL_DELIVERED", 2}, {(unsigned char *)"ACTIVE", 3}, {(unsigned char *)"DISCONNECT_IND", 4}, {(unsigned char *)"NULL", 5}, {(unsigned char *)"DISCONNECT_REQ", 6}, {(unsigned char *)0, -1}}; [L13314-L13343] static struct __anonstruct_cip2bchlc_198 cip2bchlc[29U] = { {(u8 *)0, (u8 *)0}, {(u8 *)"8090A3", (u8 *)0}, {(u8 *)"8890", (u8 *)0}, {(u8 *)"8990", (u8 *)0}, {(u8 *)"9090A3", (u8 *)0}, {(u8 *)"9190", (u8 *)0}, {(u8 *)"9890", (u8 *)0}, {(u8 *)"88C0C6E6", (u8 *)0}, {(u8 *)"8890218F", (u8 *)0}, {(u8 *)"9190A5", (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)"8090A3", (u8 *)"9181"}, {(u8 *)"9090A3", (u8 *)"9184"}, {(u8 *)"8890", (u8 *)"91A1"}, {(u8 *)"8890", (u8 *)"91A4"}, {(u8 *)"8890", (u8 *)"91A8"}, {(u8 *)"8890", (u8 *)"91B1"}, {(u8 *)"8890", (u8 *)"91B2"}, {(u8 *)"8890", (u8 *)"91B5"}, {(u8 *)"8890", (u8 *)"91B8"}, {(u8 *)"8890", (u8 *)"91C1"}, {(u8 *)"9190A5", (u8 *)"9181"}, {(u8 *)"9190A5", (u8 *)"916001"}, {(u8 *)"8890", (u8 *)"916002"}}; [L16141] static unsigned long ignored_msg_dump_time ; [L16193-L16217] static struct __anonstruct_capi_send_handler_table_202 capi_send_handler_table[24U] = { {(u16 )34432U, & do_data_b3_req}, {(u16 )34435U, & do_data_b3_resp}, {(u16 )384U, & do_alert_req}, {(u16 )899U, & do_nothing}, {(u16 )33667U, & do_nothing}, {(u16 )33408U, & do_connect_b3_req}, {(u16 )33411U, & do_connect_b3_resp}, {(u16 )34947U, & do_nothing}, {(u16 )640U, & do_connect_req}, {(u16 )643U, & do_connect_resp}, {(u16 )33920U, & do_disconnect_b3_req}, {(u16 )33923U, & do_nothing}, {(u16 )1152U, & do_disconnect_req}, {(u16 )1155U, & do_nothing}, {(u16 )32896U, & do_facility_req}, {(u16 )32899U, & do_nothing}, {(u16 )1408U, & do_listen_req}, {(u16 )16768U, & do_unsupported}, {(u16 )34688U, & do_reset_b3_req}, {(u16 )34691U, & do_nothing}, {(u16 )2176U, & do_unsupported}, {(u16 )2179U, & do_nothing}, {(u16 )65408U, & do_nothing}, {(u16 )65411U, & do_nothing}}; [L16578-L16607] static struct file_operations const gigaset_proc_fops = {& __this_module, & seq_lseek, & seq_read, (ssize_t (*)(struct file * , char const * , size_t , loff_t * ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, (unsigned int (*)(struct file * , struct poll_table_struct * ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & gigaset_proc_open, (int (*)(struct file * , fl_owner_t ))0, & single_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L16666-L16669] static struct capi_driver capi_driver_gigaset = {{(char )'g', (char )'i', (char )'g', (char )'a', (char )'s', (char )'e', (char )'t', (char )'\000'}, {(char )'1', (char )'.', (char )'0', (char )'\000'}, (int (*)(struct capi_driver * , capicardparams * ))0, {(struct list_head *)0, (struct list_head *)0}}; [L8811] struct tty_struct *var_group1 ; [L8812] struct file *var_group2 ; [L8813] int res_if_open_2 ; [L8814] unsigned int var_if_ioctl_4_p1 ; [L8815] unsigned long var_if_ioctl_4_p2 ; [L8816] unsigned char const *var_if_write_7_p1 ; [L8817] int var_if_write_7_p2 ; [L8818] struct ktermios *var_group3 ; [L8819] unsigned int var_if_tiocmset_6_p1 ; [L8820] unsigned int var_if_tiocmset_6_p2 ; [L8821] int ldv_s_if_ops_tty_operations ; [L8822] int tmp ; [L8823] int tmp___0 ; VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8826] CALL, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8805] COND TRUE __VERIFIER_nondet_bool() [L8805] return 0; VAL [\old(size)=16, \result={0:0}, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, size=16, zsau_resp={698:0}] [L8826] RET, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_malloc(sizeof(struct list_head))={0:0}, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8826] drivers.prev = ldv_malloc(sizeof(struct list_head)) [L8827] CALL, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8805] COND TRUE __VERIFIER_nondet_bool() [L8805] return 0; VAL [\old(size)=16, \result={0:0}, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, size=16, zsau_resp={698:0}] [L8827] RET, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_malloc(sizeof(struct list_head))={0:0}, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8827] drivers.next = ldv_malloc(sizeof(struct list_head)) [L8828] ldv_s_if_ops_tty_operations = 0 [L8829] LDV_IN_INTERRUPT = 1 [L8830] FCALL ldv_initialize() [L8948] tmp___0 = __VERIFIER_nondet_int() [L8950] COND TRUE tmp___0 != 0 VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp___0=1, zsau_resp={698:0}] [L8835] tmp = __VERIFIER_nondet_int() [L8837] COND TRUE tmp == 0 VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp=0, tmp___0=1, zsau_resp={698:0}] [L8873] COND TRUE ldv_s_if_ops_tty_operations == 0 VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp=0, tmp___0=1, zsau_resp={698:0}] [L8875] CALL, EXPR if_open(var_group1, var_group2) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L7634] struct cardstate *cs ; [L7635] unsigned long flags ; [L7636] long tmp ; [L7637] int tmp___0 ; [L7638] int tmp___1 ; [L7639] raw_spinlock_t *tmp___2 ; [L7642-L7643] tmp = __builtin_expect((long )(((unsigned int )gigaset_debuglevel & 524288U) != 0U), 0L) [L7645] COND FALSE !(tmp != 0L) [L7652] tty->driver_data = (void *)0 [L7653] CALL, EXPR gigaset_get_cs_by_tty(tty) [L6958] struct cardstate *tmp ; [L6960] EXPR tty->index VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tty={691:-531}, tty={691:-531}, tty->index=713, zsau_resp={698:0}] [L6960] COND FALSE !(tty->index < 0) [L6963] EXPR tty->index [L6963] EXPR tty->driver [L6963] EXPR (tty->driver)->num VAL [(tty->driver)->num=1418, \old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tty={691:-531}, tty={691:-531}, tty->driver={18446744073709550925:705}, tty->index=713, zsau_resp={698:0}] [L6963] COND FALSE !(tty->index >= (tty->driver)->num) [L6968] EXPR tty->index [L6968] EXPR tty->driver [L6968] EXPR (tty->driver)->minor_start [L6968] CALL, EXPR gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start)) [L6902] unsigned long flags ; [L6903] struct cardstate *ret ; [L6904] struct gigaset_driver *drv ; [L6905] unsigned int index ; [L6906] raw_spinlock_t *tmp ; [L6907] struct list_head const *__mptr ; [L6908] struct list_head const *__mptr___0 ; [L6911] ret = (struct cardstate *)0 VAL [\old(ldv_module_refcounter)=1, \old(minor)=4294967294, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=4294967294, resp_type={697:0}, ret={0:0}, zsau_resp={698:0}] [L6912] CALL, EXPR spinlock_check(& driver_lock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, lock={692:0}, resp_type={697:0}, zsau_resp={698:0}] [L4691] return (& lock->ldv_6060.rlock); [L6912] RET, EXPR spinlock_check(& driver_lock) VAL [\old(ldv_module_refcounter)=1, \old(minor)=4294967294, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=4294967294, resp_type={697:0}, ret={0:0}, spinlock_check(& driver_lock)={692:0}, zsau_resp={698:0}] [L6912] tmp = spinlock_check(& driver_lock) [L6913] CALL, EXPR _raw_spin_lock_irqsave(tmp) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, arg0={692:0}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L16743] return __VERIFIER_nondet_ulong(); [L6913] RET, EXPR _raw_spin_lock_irqsave(tmp) VAL [\old(ldv_module_refcounter)=1, \old(minor)=4294967294, __this_module={18446744073709550933:18446744073709550944}, _raw_spin_lock_irqsave(tmp)=18446744073709550951, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=4294967294, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6913] flags = _raw_spin_lock_irqsave(tmp) [L6914] EXPR drivers.next [L6914] __mptr = (struct list_head const *)drivers.next [L6915] drv = (struct gigaset_driver *)__mptr VAL [\old(ldv_module_refcounter)=1, \old(minor)=4294967294, __mptr={0:0}, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=18446744073709550951, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=4294967294, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6945] COND TRUE (unsigned long )(& drv->list) != (unsigned long )(& drivers) [L6919] EXPR drv->minor VAL [\old(ldv_module_refcounter)=1, \old(minor)=4294967294, __mptr={0:0}, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->minor=4294967293, flags=18446744073709550951, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=4294967294, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6919] COND FALSE !(drv->minor > minor) [L6922] EXPR drv->minor [L6922] EXPR drv->minors VAL [\old(ldv_module_refcounter)=1, \old(minor)=4294967294, __mptr={0:0}, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->minor=4294967293, drv->minors=4294967298, flags=18446744073709550951, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=4294967294, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6922] COND FALSE !(drv->minor + drv->minors <= minor) [L6927] EXPR drv->minor [L6927] index = minor - drv->minor [L6928] CALL spin_lock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L4698] FCALL _raw_spin_lock(& lock->ldv_6060.rlock) [L6928] RET spin_lock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, \old(minor)=4294967294, __mptr={0:0}, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=18446744073709550951, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=4294967294, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6930] EXPR drv->cs [L6930] EXPR (drv->cs + (unsigned long )index)->flags [L6930] COND TRUE (int )(drv->cs + (unsigned long )index)->flags & 1 [L6931] EXPR drv->cs [L6931] ret = drv->cs + (unsigned long )index [L6935] CALL spin_unlock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L4707] FCALL _raw_spin_unlock(& lock->ldv_6060.rlock) [L6935] RET spin_unlock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, \old(minor)=4294967294, __mptr={0:0}, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->cs={18446744073709550949:18446744073709550930}, flags=18446744073709550951, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=4294967294, resp_type={697:0}, ret={691:0}, tmp={692:0}, zsau_resp={698:0}] [L6937] COND TRUE (unsigned long )ret != (unsigned long )((struct cardstate *)0) VAL [\old(ldv_module_refcounter)=1, \old(minor)=4294967294, __mptr={0:0}, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->cs={18446744073709550949:18446744073709550930}, flags=18446744073709550951, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=4294967294, resp_type={697:0}, ret={691:0}, tmp={692:0}, zsau_resp={698:0}] [L6952] CALL spin_unlock_irqrestore(& driver_lock, flags) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L4716] FCALL _raw_spin_unlock_irqrestore(& lock->ldv_6060.rlock, flags) [L6952] RET spin_unlock_irqrestore(& driver_lock, flags) VAL [\old(ldv_module_refcounter)=1, \old(minor)=4294967294, __mptr={0:0}, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->cs={18446744073709550949:18446744073709550930}, flags=18446744073709550951, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=4294967294, resp_type={697:0}, ret={691:0}, tmp={692:0}, zsau_resp={698:0}] [L6954] return (ret); [L6968] RET, EXPR gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start)) [L6968] tmp = gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start)) [L6970] return (tmp); VAL [\old(ldv_module_refcounter)=1, \result={691:0}, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tmp={691:0}, tty={691:-531}, tty={691:-531}, zsau_resp={698:0}] [L7653] RET, EXPR gigaset_get_cs_by_tty(tty) [L7653] cs = gigaset_get_cs_by_tty(tty) [L7655] COND FALSE !((unsigned long )cs == (unsigned long )((struct cardstate *)0)) [L7659] EXPR cs->driver [L7659] EXPR (cs->driver)->owner VAL [(cs->driver)->owner={706:-705}, (tty->driver)->minor_start=18446744073709550954, \old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, cs->driver={0:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709550921:18446744073709550918}, filp={18446744073709550921:18446744073709550918}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, printk("<7>gigaset: %d+%d: %s()\n", (tty->driver)->minor_start, tty->index, "if_open")=18446744073709550917, resp_type={697:0}, tmp=0, tty={691:-531}, tty={691:-531}, tty->driver={18446744073709550939:18446744073709550916}, tty->index=18446744073709550936, zsau_resp={698:0}] [L7659] CALL, EXPR ldv_try_module_get_1((cs->driver)->owner) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L7175] int tmp ; [L7178] CALL, EXPR ldv_try_module_get(module) [L7113] int module_get_succeeded ; [L7115] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) [L7117] CALL, EXPR ldv_undefined_int() [L16866] return __VERIFIER_nondet_int(); [L7117] RET, EXPR ldv_undefined_int() [L7117] module_get_succeeded = ldv_undefined_int() [L7119] COND TRUE module_get_succeeded == 1 [L7120] ldv_module_refcounter = ldv_module_refcounter + 1 [L7121] return (1); [L7178] RET, EXPR ldv_try_module_get(module) [L7178] tmp = ldv_try_module_get(module) [L7180] return (tmp); [L7659] RET, EXPR ldv_try_module_get_1((cs->driver)->owner) VAL [(cs->driver)->owner={706:-705}, (tty->driver)->minor_start=18446744073709550954, \old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, cs->driver={0:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709550921:18446744073709550918}, filp={18446744073709550921:18446744073709550918}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_try_module_get_1((cs->driver)->owner)=1, printk("<7>gigaset: %d+%d: %s()\n", (tty->driver)->minor_start, tty->index, "if_open")=18446744073709550917, resp_type={697:0}, tmp=0, tty={691:-531}, tty={691:-531}, tty->driver={18446744073709550939:18446744073709550916}, tty->index=18446744073709550936, zsau_resp={698:0}] [L7659] tmp___0 = ldv_try_module_get_1((cs->driver)->owner) [L7661] COND FALSE !(tmp___0 == 0) VAL [(tty->driver)->minor_start=18446744073709550954, \old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709550921:18446744073709550918}, filp={18446744073709550921:18446744073709550918}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, printk("<7>gigaset: %d+%d: %s()\n", (tty->driver)->minor_start, tty->index, "if_open")=18446744073709550917, resp_type={697:0}, tmp=0, tmp___0=1, tty={691:-531}, tty={691:-531}, tty->driver={18446744073709550939:18446744073709550916}, tty->index=18446744073709550936, zsau_resp={698:0}] [L7667] CALL, EXPR mutex_lock_interruptible_nested(& cs->mutex, 0U) VAL [\old(arg1)=0, \old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, arg0={691:598}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] [L16884] return __VERIFIER_nondet_int(); [L7667] RET, EXPR mutex_lock_interruptible_nested(& cs->mutex, 0U) VAL [(tty->driver)->minor_start=18446744073709550954, \old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709550921:18446744073709550918}, filp={18446744073709550921:18446744073709550918}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, mutex_lock_interruptible_nested(& cs->mutex, 0U)=0, printk("<7>gigaset: %d+%d: %s()\n", (tty->driver)->minor_start, tty->index, "if_open")=18446744073709550917, resp_type={697:0}, tmp=0, tmp___0=1, tty={691:-531}, tty={691:-531}, tty->driver={18446744073709550939:18446744073709550916}, tty->index=18446744073709550936, zsau_resp={698:0}] [L7667] tmp___1 = mutex_lock_interruptible_nested(& cs->mutex, 0U) [L7669] COND FALSE !(tmp___1 != 0) [L7676] tty->driver_data = (void *)cs [L7677] EXPR cs->open_count [L7677] cs->open_count = cs->open_count + 1U [L7678] EXPR cs->open_count VAL [(tty->driver)->minor_start=18446744073709550954, \old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, cs->open_count=710, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709550921:18446744073709550918}, filp={18446744073709550921:18446744073709550918}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, printk("<7>gigaset: %d+%d: %s()\n", (tty->driver)->minor_start, tty->index, "if_open")=18446744073709550917, resp_type={697:0}, tmp=0, tmp___0=1, tmp___1=0, tty={691:-531}, tty={691:-531}, tty->driver={18446744073709550939:18446744073709550916}, tty->index=18446744073709550936, zsau_resp={698:0}] [L7678] COND FALSE !(cs->open_count == 1U) [L7689] FCALL mutex_unlock(& cs->mutex) VAL [(tty->driver)->minor_start=18446744073709550954, \old(ldv_module_refcounter)=1, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709550921:18446744073709550918}, filp={18446744073709550921:18446744073709550918}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, printk("<7>gigaset: %d+%d: %s()\n", (tty->driver)->minor_start, tty->index, "if_open")=18446744073709550917, resp_type={697:0}, tmp=0, tmp___0=1, tmp___1=0, tty={691:-531}, tty={691:-531}, tty->driver={18446744073709550939:18446744073709550916}, tty->index=18446744073709550936, zsau_resp={698:0}] [L7691] return (0); VAL [(tty->driver)->minor_start=18446744073709550954, \old(ldv_module_refcounter)=1, \result=0, __this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709550921:18446744073709550918}, filp={18446744073709550921:18446744073709550918}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, printk("<7>gigaset: %d+%d: %s()\n", (tty->driver)->minor_start, tty->index, "if_open")=18446744073709550917, resp_type={697:0}, tmp=0, tmp___0=1, tmp___1=0, tty={691:-531}, tty={691:-531}, tty->driver={18446744073709550939:18446744073709550916}, tty->index=18446744073709550936, zsau_resp={698:0}] [L8875] RET, EXPR if_open(var_group1, var_group2) VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_open(var_group1, var_group2)=0, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp=0, tmp___0=1, var_group1={691:-531}, var_group2={18446744073709550921:18446744073709550918}, zsau_resp={698:0}] [L8875] res_if_open_2 = if_open(var_group1, var_group2) [L8876] FCALL ldv_check_return_value(res_if_open_2) [L8878] COND FALSE !(res_if_open_2 != 0) [L8882] ldv_s_if_ops_tty_operations = ldv_s_if_ops_tty_operations + 1 VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=0, tmp___0=1, var_group1={691:-531}, var_group2={18446744073709550921:18446744073709550918}, zsau_resp={698:0}] [L8948] tmp___0 = __VERIFIER_nondet_int() [L8950] COND TRUE tmp___0 != 0 VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=0, tmp___0=1, var_group1={691:-531}, var_group2={18446744073709550921:18446744073709550918}, zsau_resp={698:0}] [L8835] tmp = __VERIFIER_nondet_int() [L8837] COND FALSE !(tmp == 0) VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:-531}, var_group2={18446744073709550921:18446744073709550918}, zsau_resp={698:0}] [L8840] COND TRUE tmp == 1 VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:-531}, var_group2={18446744073709550921:18446744073709550918}, zsau_resp={698:0}] [L8887] COND TRUE ldv_s_if_ops_tty_operations == 1 [L8889] CALL if_close(var_group1, var_group2) [L7695] struct cardstate *cs ; [L7696] unsigned long flags ; [L7697] long tmp ; [L7698] raw_spinlock_t *tmp___0 ; [L7699] long tmp___1 ; [L7701] EXPR tty->driver_data [L7701] cs = (struct cardstate *)tty->driver_data [L7702] COND TRUE (unsigned long )cs == (unsigned long )((struct cardstate *)0) [L8889] RET if_close(var_group1, var_group2) [L8890] ldv_s_if_ops_tty_operations = 0 VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:-531}, var_group2={18446744073709550921:18446744073709550918}, zsau_resp={698:0}] [L8948] tmp___0 = __VERIFIER_nondet_int() [L8950] COND FALSE !(tmp___0 != 0) VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=0, var_group1={691:-531}, var_group2={18446744073709550921:18446744073709550918}, zsau_resp={698:0}] [L8953] COND FALSE !(ldv_s_if_ops_tty_operations != 0) VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=0, var_group1={691:-531}, var_group2={18446744073709550921:18446744073709550918}, zsau_resp={698:0}] [L8961] CALL ldv_check_final_state() [L7165] COND TRUE ldv_module_refcounter != 1 VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] [L7167] CALL ldv_blast_assert() VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] [L7097] reach_error() VAL [__this_module={18446744073709550933:18446744073709550944}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 483 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 109.5s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 66.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 10116 SdHoareTripleChecker+Valid, 64.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9693 mSDsluCounter, 23747 SdHoareTripleChecker+Invalid, 61.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18694 mSDsCounter, 4274 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8801 IncrementalHoareTripleChecker+Invalid, 13082 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4274 mSolverCounterUnsat, 7267 mSDtfsCounter, 8801 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3074occurred in iteration=11, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 1247 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 15.3s SatisfiabilityAnalysisTime, 18.7s InterpolantComputationTime, 758 NumberOfCodeBlocks, 758 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 665 ConstructedInterpolants, 0 QuantifiedInterpolants, 1715 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8261 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 54/56 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 02:12:28,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:12:30,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:12:30,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:12:30,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:12:30,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:12:30,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:12:30,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:12:30,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:12:30,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:12:30,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:12:30,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:12:30,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:12:30,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:12:30,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:12:30,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:12:30,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:12:30,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:12:30,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:12:30,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:12:30,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:12:30,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:12:30,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:12:30,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:12:30,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:12:30,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:12:30,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:12:30,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:12:30,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:12:30,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:12:30,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:12:30,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:12:30,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:12:30,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:12:30,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:12:30,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:12:30,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:12:30,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:12:30,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:12:30,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:12:30,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:12:30,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:12:30,513 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 02:12:30,535 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:12:30,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:12:30,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:12:30,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:12:30,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:12:30,538 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:12:30,538 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:12:30,538 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:12:30,539 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:12:30,539 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:12:30,539 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:12:30,539 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:12:30,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:12:30,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:12:30,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:12:30,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:12:30,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:12:30,542 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:12:30,542 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 02:12:30,542 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 02:12:30,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:12:30,543 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:12:30,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:12:30,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:12:30,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 02:12:30,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:12:30,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:12:30,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:12:30,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:12:30,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:12:30,546 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 02:12:30,546 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 02:12:30,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:12:30,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:12:30,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 02:12:30,547 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 [2022-11-03 02:12:30,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:12:30,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:12:30,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:12:30,999 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:12:31,000 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:12:31,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2022-11-03 02:12:31,071 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/data/f5f20c69e/813c26f605e14d9aa403280c7c54f945/FLAGfe0818698 [2022-11-03 02:12:32,183 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:12:32,184 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2022-11-03 02:12:32,261 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/data/f5f20c69e/813c26f605e14d9aa403280c7c54f945/FLAGfe0818698 [2022-11-03 02:12:32,448 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/data/f5f20c69e/813c26f605e14d9aa403280c7c54f945 [2022-11-03 02:12:32,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:12:32,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:12:32,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:12:32,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:12:32,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:12:32,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:12:32" (1/1) ... [2022-11-03 02:12:32,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e1e0ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:32, skipping insertion in model container [2022-11-03 02:12:32,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:12:32" (1/1) ... [2022-11-03 02:12:32,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:12:32,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:12:34,146 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2022-11-03 02:12:34,691 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:34,695 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:34,696 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:34,703 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:35,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:12:35,944 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-03 02:12:36,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:12:36,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2022-11-03 02:12:36,361 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:36,364 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:36,365 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:36,369 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:36,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:12:36,691 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:12:36,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2022-11-03 02:12:37,068 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:37,071 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:37,071 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:37,075 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:12:37,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:12:37,687 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:12:37,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37 WrapperNode [2022-11-03 02:12:37,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:12:37,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:12:37,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:12:37,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:12:37,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (1/1) ... [2022-11-03 02:12:37,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (1/1) ... [2022-11-03 02:12:38,028 INFO L138 Inliner]: procedures = 367, calls = 6444, calls flagged for inlining = 156, calls inlined = 36, statements flattened = 4438 [2022-11-03 02:12:38,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:12:38,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:12:38,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:12:38,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:12:38,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (1/1) ... [2022-11-03 02:12:38,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (1/1) ... [2022-11-03 02:12:38,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (1/1) ... [2022-11-03 02:12:38,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (1/1) ... [2022-11-03 02:12:38,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (1/1) ... [2022-11-03 02:12:38,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (1/1) ... [2022-11-03 02:12:38,230 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (1/1) ... [2022-11-03 02:12:38,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (1/1) ... [2022-11-03 02:12:38,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:12:38,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:12:38,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:12:38,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:12:38,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (1/1) ... [2022-11-03 02:12:38,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:12:38,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:12:38,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:12:38,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:12:38,339 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2022-11-03 02:12:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2022-11-03 02:12:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-03 02:12:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-03 02:12:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-03 02:12:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:12:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:12:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2022-11-03 02:12:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2022-11-03 02:12:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 02:12:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 02:12:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:12:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:12:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-03 02:12:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-03 02:12:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2022-11-03 02:12:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2022-11-03 02:12:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-03 02:12:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-03 02:12:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:12:38,343 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:12:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2022-11-03 02:12:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2022-11-03 02:12:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2022-11-03 02:12:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2022-11-03 02:12:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:12:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:12:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:12:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:12:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:12:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:12:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-03 02:12:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-03 02:12:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-03 02:12:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:12:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-03 02:12:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:12:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 02:12:38,348 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 02:12:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmget [2022-11-03 02:12:38,349 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmget [2022-11-03 02:12:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-03 02:12:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 02:12:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~TO~C_INT [2022-11-03 02:12:38,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~TO~C_INT [2022-11-03 02:12:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-03 02:12:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-03 02:12:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:12:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:12:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:12:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:12:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 02:12:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 02:12:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure if_chars_in_buffer [2022-11-03 02:12:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer [2022-11-03 02:12:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure if_write_room [2022-11-03 02:12:38,353 INFO L138 BoogieDeclarations]: Found implementation of procedure if_write_room [2022-11-03 02:12:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:12:38,353 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:12:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure if_throttle [2022-11-03 02:12:38,354 INFO L138 BoogieDeclarations]: Found implementation of procedure if_throttle [2022-11-03 02:12:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 02:12:38,354 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 02:12:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 02:12:38,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 02:12:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2022-11-03 02:12:38,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2022-11-03 02:12:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:12:38,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:12:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-03 02:12:38,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-03 02:12:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-03 02:12:38,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-03 02:12:38,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-03 02:12:38,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-03 02:12:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-03 02:12:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-03 02:12:38,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-03 02:12:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:12:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 02:12:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 02:12:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:12:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:12:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:12:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-03 02:12:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-03 02:12:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-03 02:12:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-03 02:12:38,360 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-03 02:12:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmset [2022-11-03 02:12:38,361 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmset [2022-11-03 02:12:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-03 02:12:38,361 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-03 02:12:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure if_open [2022-11-03 02:12:38,362 INFO L138 BoogieDeclarations]: Found implementation of procedure if_open [2022-11-03 02:12:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:12:38,363 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:12:38,364 INFO L130 BoogieDeclarations]: Found specification of procedure setflags [2022-11-03 02:12:38,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setflags [2022-11-03 02:12:38,366 INFO L130 BoogieDeclarations]: Found specification of procedure if_unthrottle [2022-11-03 02:12:38,367 INFO L138 BoogieDeclarations]: Found implementation of procedure if_unthrottle [2022-11-03 02:12:38,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-03 02:12:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 02:12:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 02:12:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:12:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:12:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:12:38,375 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:12:38,898 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:12:38,902 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:12:43,390 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-03 02:12:43,390 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-03 02:12:44,232 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2022-11-03 02:12:44,232 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2022-11-03 02:12:44,232 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012-1: ~tmp~4#1.base, ~tmp~4#1.offset := #t~ret76#1.base, #t~ret76#1.offset;havoc #t~ret76#1.base, #t~ret76#1.offset;~__ptr~0#1.base, ~__ptr~0#1.offset := ~tmp~4#1.base, ~tmp~4#1.offset; [2022-11-03 02:12:44,233 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012: SUMMARY for call #t~ret76#1.base, #t~ret76#1.offset := get_current(); srcloc: null [2022-11-03 02:12:44,235 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:12:44,236 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:12:44,237 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:12:44,708 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2022-11-03 02:12:44,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2022-11-03 02:12:44,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2022-11-03 02:12:44,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2022-11-03 02:12:44,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2022-11-03 02:12:44,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2022-11-03 02:12:45,210 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:12:45,213 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:12:45,217 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:16:13,664 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume !false;call ULTIMATE.dealloc(if_version_~#version~0#1.base, if_version_~#version~0#1.offset);havoc if_version_~#version~0#1.base, if_version_~#version~0#1.offset;call ULTIMATE.dealloc(if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset);havoc if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset;call ULTIMATE.dealloc(if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset);havoc if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset; [2022-11-03 02:16:13,664 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !false; [2022-11-03 02:16:13,665 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume false; [2022-11-03 02:16:13,665 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume !false; [2022-11-03 02:16:13,665 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume false; [2022-11-03 02:16:13,665 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##147: assume !false; [2022-11-03 02:16:13,665 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2022-11-03 02:16:13,665 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2022-11-03 02:16:13,666 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##146: assume false; [2022-11-03 02:16:13,666 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume false; [2022-11-03 02:16:13,666 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume false; [2022-11-03 02:16:13,666 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume !false; [2022-11-03 02:16:13,666 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##117: assume !false; [2022-11-03 02:16:13,667 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume false; [2022-11-03 02:16:13,722 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:16:13,736 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:16:13,737 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 02:16:13,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:16:13 BoogieIcfgContainer [2022-11-03 02:16:13,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:16:13,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:16:13,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:16:13,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:16:13,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:12:32" (1/3) ... [2022-11-03 02:16:13,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f34723f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:16:13, skipping insertion in model container [2022-11-03 02:16:13,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:37" (2/3) ... [2022-11-03 02:16:13,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f34723f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:16:13, skipping insertion in model container [2022-11-03 02:16:13,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:16:13" (3/3) ... [2022-11-03 02:16:13,750 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2022-11-03 02:16:13,771 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:16:13,771 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:16:13,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:16:13,859 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=FINITE_AUTOMATA, 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;@42f92723, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:16:13,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:16:13,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 643 states, 491 states have (on average 1.4114052953156824) internal successors, (693), 504 states have internal predecessors, (693), 112 states have call successors, (112), 39 states have call predecessors, (112), 39 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2022-11-03 02:16:13,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 02:16:13,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:13,878 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:13,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:13,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:13,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1604531392, now seen corresponding path program 1 times [2022-11-03 02:16:13,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:16:13,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386104381] [2022-11-03 02:16:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:13,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:16:13,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:16:13,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:16:13,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 02:16:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:24,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 7618 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:16:24,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:25,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:16:25,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:16:25,051 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:16:25,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386104381] [2022-11-03 02:16:25,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386104381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:25,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:25,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:16:25,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967963993] [2022-11-03 02:16:25,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:25,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:25,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:16:25,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:25,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:25,104 INFO L87 Difference]: Start difference. First operand has 643 states, 491 states have (on average 1.4114052953156824) internal successors, (693), 504 states have internal predecessors, (693), 112 states have call successors, (112), 39 states have call predecessors, (112), 39 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:16:25,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:25,402 INFO L93 Difference]: Finished difference Result 1905 states and 2769 transitions. [2022-11-03 02:16:25,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:25,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-03 02:16:25,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:25,451 INFO L225 Difference]: With dead ends: 1905 [2022-11-03 02:16:25,451 INFO L226 Difference]: Without dead ends: 1259 [2022-11-03 02:16:25,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:25,466 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 883 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:25,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 1925 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:16:25,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2022-11-03 02:16:25,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1256. [2022-11-03 02:16:25,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 959 states have (on average 1.4014598540145986) internal successors, (1344), 982 states have internal predecessors, (1344), 220 states have call successors, (220), 77 states have call predecessors, (220), 76 states have return successors, (223), 216 states have call predecessors, (223), 218 states have call successors, (223) [2022-11-03 02:16:25,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1787 transitions. [2022-11-03 02:16:25,716 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1787 transitions. Word has length 22 [2022-11-03 02:16:25,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:25,717 INFO L495 AbstractCegarLoop]: Abstraction has 1256 states and 1787 transitions. [2022-11-03 02:16:25,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:16:25,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1787 transitions. [2022-11-03 02:16:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-03 02:16:25,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:25,731 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:16:25,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-03 02:16:25,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:16:25,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:25,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:25,934 INFO L85 PathProgramCache]: Analyzing trace with hash 263024063, now seen corresponding path program 1 times [2022-11-03 02:16:25,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:16:25,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793886462] [2022-11-03 02:16:25,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:25,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:16:25,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:16:25,954 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:16:26,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 02:16:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:36,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 7670 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:16:36,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:16:36,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:16:36,484 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:16:36,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793886462] [2022-11-03 02:16:36,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793886462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:36,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:36,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:36,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113773704] [2022-11-03 02:16:36,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:36,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:36,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:16:36,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:36,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:36,493 INFO L87 Difference]: Start difference. First operand 1256 states and 1787 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:16:36,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:36,664 INFO L93 Difference]: Finished difference Result 2965 states and 4308 transitions. [2022-11-03 02:16:36,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:36,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2022-11-03 02:16:36,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:36,680 INFO L225 Difference]: With dead ends: 2965 [2022-11-03 02:16:36,680 INFO L226 Difference]: Without dead ends: 1715 [2022-11-03 02:16:36,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:36,689 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 261 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:36,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 1857 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:16:36,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2022-11-03 02:16:36,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1715. [2022-11-03 02:16:36,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1312 states have (on average 1.4222560975609757) internal successors, (1866), 1349 states have internal predecessors, (1866), 326 states have call successors, (326), 77 states have call predecessors, (326), 76 states have return successors, (331), 320 states have call predecessors, (331), 324 states have call successors, (331) [2022-11-03 02:16:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2523 transitions. [2022-11-03 02:16:36,834 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2523 transitions. Word has length 42 [2022-11-03 02:16:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:36,835 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2523 transitions. [2022-11-03 02:16:36,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:16:36,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2523 transitions. [2022-11-03 02:16:36,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 02:16:36,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:36,842 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:16:37,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:16:37,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:16:37,057 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:37,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:37,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1647183611, now seen corresponding path program 1 times [2022-11-03 02:16:37,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:16:37,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010693829] [2022-11-03 02:16:37,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:37,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:16:37,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:16:37,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:16:37,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 02:16:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:48,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 7707 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:16:48,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:48,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:16:48,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:16:48,410 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:16:48,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010693829] [2022-11-03 02:16:48,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1010693829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:48,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:48,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:48,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178912799] [2022-11-03 02:16:48,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:48,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:16:48,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:16:48,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:16:48,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:16:48,413 INFO L87 Difference]: Start difference. First operand 1715 states and 2523 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:16:50,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:51,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:51,419 INFO L93 Difference]: Finished difference Result 5069 states and 7478 transitions. [2022-11-03 02:16:51,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:16:51,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2022-11-03 02:16:51,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:51,445 INFO L225 Difference]: With dead ends: 5069 [2022-11-03 02:16:51,445 INFO L226 Difference]: Without dead ends: 3361 [2022-11-03 02:16:51,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:16:51,456 INFO L413 NwaCegarLoop]: 1079 mSDtfsCounter, 889 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:51,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 3039 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 104 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 02:16:51,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2022-11-03 02:16:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 3271. [2022-11-03 02:16:51,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 2510 states have (on average 1.4247011952191235) internal successors, (3576), 2575 states have internal predecessors, (3576), 608 states have call successors, (608), 153 states have call predecessors, (608), 152 states have return successors, (620), 598 states have call predecessors, (620), 606 states have call successors, (620) [2022-11-03 02:16:51,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 4804 transitions. [2022-11-03 02:16:51,682 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 4804 transitions. Word has length 47 [2022-11-03 02:16:51,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:51,683 INFO L495 AbstractCegarLoop]: Abstraction has 3271 states and 4804 transitions. [2022-11-03 02:16:51,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:16:51,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 4804 transitions. [2022-11-03 02:16:51,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 02:16:51,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:51,687 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:16:51,901 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forcibly destroying the process [2022-11-03 02:16:51,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:16:51,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:16:51,969 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:51,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:51,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1506635001, now seen corresponding path program 1 times [2022-11-03 02:16:51,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:16:51,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502796263] [2022-11-03 02:16:51,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:51,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:16:51,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:16:51,988 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:16:52,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 02:17:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:04,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 7707 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:17:04,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:04,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:17:04,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:17:04,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:17:04,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502796263] [2022-11-03 02:17:04,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502796263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:04,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:04,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:17:04,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514483600] [2022-11-03 02:17:04,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:04,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:17:04,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:17:04,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:17:04,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:17:04,461 INFO L87 Difference]: Start difference. First operand 3271 states and 4804 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:17:04,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:04,966 INFO L93 Difference]: Finished difference Result 6551 states and 9659 transitions. [2022-11-03 02:17:04,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:17:04,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2022-11-03 02:17:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:04,989 INFO L225 Difference]: With dead ends: 6551 [2022-11-03 02:17:04,992 INFO L226 Difference]: Without dead ends: 3287 [2022-11-03 02:17:05,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:17:05,009 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 5 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:05,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2682 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:17:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2022-11-03 02:17:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3283. [2022-11-03 02:17:05,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 2520 states have (on average 1.423015873015873) internal successors, (3586), 2587 states have internal predecessors, (3586), 608 states have call successors, (608), 153 states have call predecessors, (608), 154 states have return successors, (624), 598 states have call predecessors, (624), 606 states have call successors, (624) [2022-11-03 02:17:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 4818 transitions. [2022-11-03 02:17:05,216 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 4818 transitions. Word has length 47 [2022-11-03 02:17:05,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:05,217 INFO L495 AbstractCegarLoop]: Abstraction has 3283 states and 4818 transitions. [2022-11-03 02:17:05,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:17:05,217 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 4818 transitions. [2022-11-03 02:17:05,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-03 02:17:05,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:05,222 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:05,445 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forcibly destroying the process [2022-11-03 02:17:05,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:05,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:17:05,487 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:05,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:05,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1166731535, now seen corresponding path program 1 times [2022-11-03 02:17:05,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:17:05,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249522203] [2022-11-03 02:17:05,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:05,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:17:05,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:17:05,499 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:17:05,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 02:17:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:15,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 7722 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:17:15,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:17:16,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:17:16,063 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:17:16,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249522203] [2022-11-03 02:17:16,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249522203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:16,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:16,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:17:16,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639715011] [2022-11-03 02:17:16,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:16,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:17:16,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:17:16,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:17:16,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:17:16,067 INFO L87 Difference]: Start difference. First operand 3283 states and 4818 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 02:17:16,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:16,325 INFO L93 Difference]: Finished difference Result 6582 states and 9660 transitions. [2022-11-03 02:17:16,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:17:16,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2022-11-03 02:17:16,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:16,348 INFO L225 Difference]: With dead ends: 6582 [2022-11-03 02:17:16,349 INFO L226 Difference]: Without dead ends: 3300 [2022-11-03 02:17:16,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:17:16,362 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 3 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3583 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:16,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3583 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:17:16,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2022-11-03 02:17:16,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3294. [2022-11-03 02:17:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 2527 states have (on average 1.4218440838939455) internal successors, (3593), 2597 states have internal predecessors, (3593), 608 states have call successors, (608), 153 states have call predecessors, (608), 158 states have return successors, (634), 599 states have call predecessors, (634), 606 states have call successors, (634) [2022-11-03 02:17:16,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 4835 transitions. [2022-11-03 02:17:16,550 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 4835 transitions. Word has length 59 [2022-11-03 02:17:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:16,550 INFO L495 AbstractCegarLoop]: Abstraction has 3294 states and 4835 transitions. [2022-11-03 02:17:16,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 02:17:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 4835 transitions. [2022-11-03 02:17:16,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-03 02:17:16,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:16,558 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:16,758 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forcibly destroying the process [2022-11-03 02:17:16,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:16,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:17:16,825 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:16,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:16,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1526216861, now seen corresponding path program 1 times [2022-11-03 02:17:16,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:17:16,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810462404] [2022-11-03 02:17:16,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:16,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:17:16,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:17:16,840 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:17:16,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 02:17:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:28,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 7769 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 02:17:28,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:29,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:17:29,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:17:29,073 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:17:29,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810462404] [2022-11-03 02:17:29,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810462404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:29,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:29,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:17:29,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994870419] [2022-11-03 02:17:29,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:29,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:17:29,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:17:29,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:17:29,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:17:29,075 INFO L87 Difference]: Start difference. First operand 3294 states and 4835 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 02:17:29,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:29,861 INFO L93 Difference]: Finished difference Result 6653 states and 9817 transitions. [2022-11-03 02:17:29,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:17:29,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2022-11-03 02:17:29,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:29,883 INFO L225 Difference]: With dead ends: 6653 [2022-11-03 02:17:29,883 INFO L226 Difference]: Without dead ends: 3366 [2022-11-03 02:17:29,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:17:29,898 INFO L413 NwaCegarLoop]: 903 mSDtfsCounter, 24 mSDsluCounter, 3586 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 4489 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:29,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 4489 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:17:29,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2022-11-03 02:17:30,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3346. [2022-11-03 02:17:30,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3346 states, 2567 states have (on average 1.4215037008180755) internal successors, (3649), 2637 states have internal predecessors, (3649), 620 states have call successors, (620), 153 states have call predecessors, (620), 158 states have return successors, (646), 611 states have call predecessors, (646), 618 states have call successors, (646) [2022-11-03 02:17:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 4915 transitions. [2022-11-03 02:17:30,091 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 4915 transitions. Word has length 66 [2022-11-03 02:17:30,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:30,092 INFO L495 AbstractCegarLoop]: Abstraction has 3346 states and 4915 transitions. [2022-11-03 02:17:30,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 02:17:30,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 4915 transitions. [2022-11-03 02:17:30,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-03 02:17:30,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:30,096 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:17:30,309 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2022-11-03 02:17:30,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:30,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:17:30,349 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:30,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:30,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2074200846, now seen corresponding path program 1 times [2022-11-03 02:17:30,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:17:30,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529924286] [2022-11-03 02:17:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:30,359 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:17:30,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:17:30,360 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:17:30,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 02:17:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:41,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 7808 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:17:41,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:41,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:17:41,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:17:41,343 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:17:41,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529924286] [2022-11-03 02:17:41,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529924286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:41,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:41,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:17:41,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386225229] [2022-11-03 02:17:41,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:41,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:17:41,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:17:41,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:17:41,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:17:41,345 INFO L87 Difference]: Start difference. First operand 3346 states and 4915 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:17:41,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:41,635 INFO L93 Difference]: Finished difference Result 6188 states and 9042 transitions. [2022-11-03 02:17:41,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:17:41,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 82 [2022-11-03 02:17:41,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:41,655 INFO L225 Difference]: With dead ends: 6188 [2022-11-03 02:17:41,655 INFO L226 Difference]: Without dead ends: 2849 [2022-11-03 02:17:41,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:17:41,670 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 4 mSDsluCounter, 3588 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4487 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:41,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4487 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:17:41,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2022-11-03 02:17:41,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2841. [2022-11-03 02:17:41,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2188 states have (on average 1.410420475319927) internal successors, (3086), 2244 states have internal predecessors, (3086), 498 states have call successors, (498), 149 states have call predecessors, (498), 154 states have return successors, (518), 491 states have call predecessors, (518), 496 states have call successors, (518) [2022-11-03 02:17:41,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 4102 transitions. [2022-11-03 02:17:41,854 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 4102 transitions. Word has length 82 [2022-11-03 02:17:41,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:41,855 INFO L495 AbstractCegarLoop]: Abstraction has 2841 states and 4102 transitions. [2022-11-03 02:17:41,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:17:41,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 4102 transitions. [2022-11-03 02:17:41,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-03 02:17:41,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:41,860 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:17:42,085 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forcibly destroying the process [2022-11-03 02:17:42,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:42,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:17:42,119 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:42,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:42,119 INFO L85 PathProgramCache]: Analyzing trace with hash -575124009, now seen corresponding path program 1 times [2022-11-03 02:17:42,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:17:42,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991375463] [2022-11-03 02:17:42,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:42,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:17:42,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:17:42,134 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:17:42,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 02:17:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:53,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 7792 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:17:53,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:17:53,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:17:53,857 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:17:53,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991375463] [2022-11-03 02:17:53,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991375463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:53,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:53,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:17:53,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124055123] [2022-11-03 02:17:53,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:53,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:17:53,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:17:53,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:17:53,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:17:53,861 INFO L87 Difference]: Start difference. First operand 2841 states and 4102 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-03 02:17:54,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:54,173 INFO L93 Difference]: Finished difference Result 4529 states and 6586 transitions. [2022-11-03 02:17:54,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:17:54,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) Word has length 81 [2022-11-03 02:17:54,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:54,190 INFO L225 Difference]: With dead ends: 4529 [2022-11-03 02:17:54,190 INFO L226 Difference]: Without dead ends: 2841 [2022-11-03 02:17:54,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:17:54,197 INFO L413 NwaCegarLoop]: 903 mSDtfsCounter, 14 mSDsluCounter, 3581 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:54,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 4484 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:17:54,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2022-11-03 02:17:54,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2837. [2022-11-03 02:17:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2837 states, 2186 states have (on average 1.4098810612991766) internal successors, (3082), 2240 states have internal predecessors, (3082), 498 states have call successors, (498), 149 states have call predecessors, (498), 152 states have return successors, (510), 491 states have call predecessors, (510), 496 states have call successors, (510) [2022-11-03 02:17:54,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 2837 states and 4090 transitions. [2022-11-03 02:17:54,361 INFO L78 Accepts]: Start accepts. Automaton has 2837 states and 4090 transitions. Word has length 81 [2022-11-03 02:17:54,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:54,362 INFO L495 AbstractCegarLoop]: Abstraction has 2837 states and 4090 transitions. [2022-11-03 02:17:54,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-03 02:17:54,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2837 states and 4090 transitions. [2022-11-03 02:17:54,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-03 02:17:54,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:54,367 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:17:54,593 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forcibly destroying the process [2022-11-03 02:17:54,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:54,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:17:54,653 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:54,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:54,653 INFO L85 PathProgramCache]: Analyzing trace with hash -631103340, now seen corresponding path program 1 times [2022-11-03 02:17:54,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:17:54,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001428318] [2022-11-03 02:17:54,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:54,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:17:54,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:17:54,674 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:17:54,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 02:18:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:06,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 7811 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 02:18:06,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:06,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:18:06,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:18:06,840 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:18:06,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001428318] [2022-11-03 02:18:06,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001428318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:06,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:06,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:18:06,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003144999] [2022-11-03 02:18:06,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:06,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:18:06,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:18:06,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:18:06,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:18:06,842 INFO L87 Difference]: Start difference. First operand 2837 states and 4090 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:18:09,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:11,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:13,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:19,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:21,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:23,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:25,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:32,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:34,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:39,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:41,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:47,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:51,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:53,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:53,279 INFO L93 Difference]: Finished difference Result 7895 states and 11522 transitions. [2022-11-03 02:18:53,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:18:53,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2022-11-03 02:18:53,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:53,322 INFO L225 Difference]: With dead ends: 7895 [2022-11-03 02:18:53,322 INFO L226 Difference]: Without dead ends: 6205 [2022-11-03 02:18:53,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:18:53,333 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 2547 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 2658 mSolverCounterSat, 608 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 3955 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 2658 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:53,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2703 Valid, 3955 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 2658 Invalid, 13 Unknown, 0 Unchecked, 45.8s Time] [2022-11-03 02:18:53,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6205 states. [2022-11-03 02:18:53,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6205 to 6170. [2022-11-03 02:18:53,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 4749 states have (on average 1.414403032217309) internal successors, (6717), 4871 states have internal predecessors, (6717), 1102 states have call successors, (1102), 301 states have call predecessors, (1102), 318 states have return successors, (1166), 1097 states have call predecessors, (1166), 1100 states have call successors, (1166) [2022-11-03 02:18:53,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 8985 transitions. [2022-11-03 02:18:53,713 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 8985 transitions. Word has length 84 [2022-11-03 02:18:53,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:53,715 INFO L495 AbstractCegarLoop]: Abstraction has 6170 states and 8985 transitions. [2022-11-03 02:18:53,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:18:53,716 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 8985 transitions. [2022-11-03 02:18:53,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-03 02:18:53,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:53,721 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:18:53,945 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forcibly destroying the process [2022-11-03 02:18:53,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:53,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:18:53,999 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:53,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:53,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2100447070, now seen corresponding path program 1 times [2022-11-03 02:18:54,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:18:54,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672831753] [2022-11-03 02:18:54,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:54,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:18:54,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:18:54,020 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:18:54,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 02:19:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:05,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 7822 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-03 02:19:05,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:19:07,159 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:19:07,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 54 [2022-11-03 02:19:07,243 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:19:07,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 41 [2022-11-03 02:19:08,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:19:08,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:19:08,622 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:19:08,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672831753] [2022-11-03 02:19:08,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672831753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:08,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:08,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:19:08,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222760366] [2022-11-03 02:19:08,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:08,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 02:19:08,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:19:08,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 02:19:08,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:19:08,625 INFO L87 Difference]: Start difference. First operand 6170 states and 8985 transitions. Second operand has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-03 02:19:11,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:14,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:17,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:19,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:23,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:23,565 INFO L93 Difference]: Finished difference Result 11261 states and 16458 transitions. [2022-11-03 02:19:23,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:19:23,567 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 93 [2022-11-03 02:19:23,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:23,599 INFO L225 Difference]: With dead ends: 11261 [2022-11-03 02:19:23,599 INFO L226 Difference]: Without dead ends: 6244 [2022-11-03 02:19:23,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:19:23,617 INFO L413 NwaCegarLoop]: 902 mSDtfsCounter, 26 mSDsluCounter, 6104 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 7006 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:23,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 7006 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 4 Unknown, 88 Unchecked, 14.0s Time] [2022-11-03 02:19:23,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2022-11-03 02:19:23,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 6184. [2022-11-03 02:19:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6184 states, 4757 states have (on average 1.4137061173008199) internal successors, (6725), 4883 states have internal predecessors, (6725), 1102 states have call successors, (1102), 305 states have call predecessors, (1102), 324 states have return successors, (1166), 1095 states have call predecessors, (1166), 1100 states have call successors, (1166) [2022-11-03 02:19:23,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 8993 transitions. [2022-11-03 02:19:23,954 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 8993 transitions. Word has length 93 [2022-11-03 02:19:23,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:23,955 INFO L495 AbstractCegarLoop]: Abstraction has 6184 states and 8993 transitions. [2022-11-03 02:19:23,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-03 02:19:23,956 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 8993 transitions. [2022-11-03 02:19:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-03 02:19:23,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:23,960 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:19:24,186 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forcibly destroying the process [2022-11-03 02:19:24,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:19:24,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:19:24,200 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:24,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:24,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1363964116, now seen corresponding path program 1 times [2022-11-03 02:19:24,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:19:24,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040776146] [2022-11-03 02:19:24,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:24,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:19:24,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:19:24,214 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:19:24,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 02:19:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:36,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 7844 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:19:36,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:19:36,349 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:19:36,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:19:36,350 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:19:36,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040776146] [2022-11-03 02:19:36,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040776146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:36,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:36,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:19:36,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762635009] [2022-11-03 02:19:36,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:36,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:19:36,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:19:36,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:19:36,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:19:36,352 INFO L87 Difference]: Start difference. First operand 6184 states and 8993 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 02:19:36,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:36,913 INFO L93 Difference]: Finished difference Result 7484 states and 11094 transitions. [2022-11-03 02:19:36,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:19:36,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 93 [2022-11-03 02:19:36,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:36,960 INFO L225 Difference]: With dead ends: 7484 [2022-11-03 02:19:36,960 INFO L226 Difference]: Without dead ends: 7479 [2022-11-03 02:19:36,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:19:36,968 INFO L413 NwaCegarLoop]: 1270 mSDtfsCounter, 286 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 4724 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:36,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 4724 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:19:36,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7479 states. [2022-11-03 02:19:37,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7479 to 6194. [2022-11-03 02:19:37,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 4765 states have (on average 1.412591815320042) internal successors, (6731), 4891 states have internal predecessors, (6731), 1102 states have call successors, (1102), 305 states have call predecessors, (1102), 326 states have return successors, (1174), 1097 states have call predecessors, (1174), 1100 states have call successors, (1174) [2022-11-03 02:19:37,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 9007 transitions. [2022-11-03 02:19:37,426 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 9007 transitions. Word has length 93 [2022-11-03 02:19:37,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:37,427 INFO L495 AbstractCegarLoop]: Abstraction has 6194 states and 9007 transitions. [2022-11-03 02:19:37,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 02:19:37,427 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 9007 transitions. [2022-11-03 02:19:37,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-03 02:19:37,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:37,434 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:19:37,661 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forcibly destroying the process [2022-11-03 02:19:37,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 02:19:37,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:19:37,708 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:37,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:37,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1791418784, now seen corresponding path program 1 times [2022-11-03 02:19:37,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:19:37,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563361485] [2022-11-03 02:19:37,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:37,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:19:37,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:19:37,730 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:19:37,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 02:19:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:49,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 7848 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:19:49,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:19:49,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:19:49,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:19:49,786 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:19:49,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563361485] [2022-11-03 02:19:49,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563361485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:49,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:49,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:19:49,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181098815] [2022-11-03 02:19:49,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:49,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:19:49,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:19:49,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:19:49,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:19:49,788 INFO L87 Difference]: Start difference. First operand 6194 states and 9007 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 02:19:51,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:51,514 INFO L93 Difference]: Finished difference Result 11235 states and 16376 transitions. [2022-11-03 02:19:51,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:19:51,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2022-11-03 02:19:51,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:51,541 INFO L225 Difference]: With dead ends: 11235 [2022-11-03 02:19:51,541 INFO L226 Difference]: Without dead ends: 6194 [2022-11-03 02:19:51,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:19:51,559 INFO L413 NwaCegarLoop]: 1258 mSDtfsCounter, 542 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:51,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 3001 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-03 02:19:51,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6194 states. [2022-11-03 02:19:51,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6194 to 6194. [2022-11-03 02:19:51,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 4765 states have (on average 1.4092339979013642) internal successors, (6715), 4891 states have internal predecessors, (6715), 1102 states have call successors, (1102), 305 states have call predecessors, (1102), 326 states have return successors, (1174), 1097 states have call predecessors, (1174), 1100 states have call successors, (1174) [2022-11-03 02:19:51,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 8991 transitions. [2022-11-03 02:19:51,944 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 8991 transitions. Word has length 96 [2022-11-03 02:19:51,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:51,945 INFO L495 AbstractCegarLoop]: Abstraction has 6194 states and 8991 transitions. [2022-11-03 02:19:51,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 02:19:51,946 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 8991 transitions. [2022-11-03 02:19:51,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 02:19:51,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:51,951 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:52,178 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forcibly destroying the process [2022-11-03 02:19:52,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 02:19:52,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:19:52,209 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:52,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:52,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1096108951, now seen corresponding path program 1 times [2022-11-03 02:19:52,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:19:52,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265781440] [2022-11-03 02:19:52,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:52,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:19:52,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:19:52,223 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:19:52,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738842b1-cc7c-4e7a-bbc7-bef4f5aa6135/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process