./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c --- 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-8393723 [2022-11-18 18:49:50,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:49:50,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:49:50,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:49:50,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:49:50,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:49:50,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:49:50,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:49:50,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:49:50,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:49:50,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:49:50,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:49:50,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:49:50,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:49:50,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:49:50,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:49:50,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:49:50,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:49:50,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:49:50,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:49:50,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:49:50,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:49:50,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:49:50,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:49:50,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:49:50,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:49:50,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:49:50,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:49:50,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:49:50,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:49:50,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:49:50,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:49:50,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:49:50,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:49:50,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:49:50,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:49:50,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:49:50,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:49:50,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:49:50,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:49:50,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:49:50,552 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:49:50,596 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:49:50,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:49:50,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:49:50,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:49:50,598 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:49:50,598 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:49:50,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:49:50,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:49:50,600 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:49:50,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:49:50,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:49:50,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:49:50,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:49:50,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:49:50,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:49:50,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:49:50,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:49:50,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:49:50,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:49:50,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:49:50,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:49:50,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:49:50,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:49:50,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:49:50,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:49:50,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:49:50,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:49:50,606 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:49:50,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:49:50,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:49:50,608 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_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c [2022-11-18 18:49:50,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:49:50,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:49:50,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:49:50,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:49:50,969 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:49:50,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-11-18 18:49:51,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/data/14e1a74b2/a918156a72e4497795e2df51b5dc489f/FLAG773246ea0 [2022-11-18 18:49:52,206 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:49:52,211 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-11-18 18:49:52,295 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/data/14e1a74b2/a918156a72e4497795e2df51b5dc489f/FLAG773246ea0 [2022-11-18 18:49:52,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/data/14e1a74b2/a918156a72e4497795e2df51b5dc489f [2022-11-18 18:49:52,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:49:52,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:49:52,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:49:52,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:49:52,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:49:52,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:49:52" (1/1) ... [2022-11-18 18:49:52,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e430f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:52, skipping insertion in model container [2022-11-18 18:49:52,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:49:52" (1/1) ... [2022-11-18 18:49:52,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:49:52,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:49:56,591 WARN L234 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_a166ffde-bd72-4bd3-85dc-255fc442fdff/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2022-11-18 18:49:56,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:49:56,740 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:49:57,340 WARN L234 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_a166ffde-bd72-4bd3-85dc-255fc442fdff/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2022-11-18 18:49:57,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:49:57,645 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:49:57,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57 WrapperNode [2022-11-18 18:49:57,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:49:57,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:49:57,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:49:57,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:49:57,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (1/1) ... [2022-11-18 18:49:57,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (1/1) ... [2022-11-18 18:49:58,120 INFO L138 Inliner]: procedures = 464, calls = 3161, calls flagged for inlining = 208, calls inlined = 193, statements flattened = 7704 [2022-11-18 18:49:58,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:49:58,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:49:58,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:49:58,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:49:58,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (1/1) ... [2022-11-18 18:49:58,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (1/1) ... [2022-11-18 18:49:58,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (1/1) ... [2022-11-18 18:49:58,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (1/1) ... [2022-11-18 18:49:58,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (1/1) ... [2022-11-18 18:49:58,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (1/1) ... [2022-11-18 18:49:58,544 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (1/1) ... [2022-11-18 18:49:58,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (1/1) ... [2022-11-18 18:49:58,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:49:58,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:49:58,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:49:58,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:49:58,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (1/1) ... [2022-11-18 18:49:58,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:49:58,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:49:58,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:49:58,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:49:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-18 18:49:58,703 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-18 18:49:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-18 18:49:58,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-18 18:49:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2022-11-18 18:49:58,704 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2022-11-18 18:49:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 18:49:58,705 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 18:49:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2022-11-18 18:49:58,705 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2022-11-18 18:49:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-18 18:49:58,705 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-18 18:49:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-18 18:49:58,706 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-18 18:49:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-18 18:49:58,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-18 18:49:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 18:49:58,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 18:49:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2022-11-18 18:49:58,707 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2022-11-18 18:49:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-18 18:49:58,707 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-18 18:49:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_error_detected [2022-11-18 18:49:58,708 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_error_detected [2022-11-18 18:49:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_change_mtu [2022-11-18 18:49:58,708 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_change_mtu [2022-11-18 18:49:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-18 18:49:58,708 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-18 18:49:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-18 18:49:58,709 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-18 18:49:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-18 18:49:58,709 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-18 18:49:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-18 18:49:58,709 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-18 18:49:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 18:49:58,710 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 18:49:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2022-11-18 18:49:58,710 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2022-11-18 18:49:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2022-11-18 18:49:58,711 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2022-11-18 18:49:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-18 18:49:58,711 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-18 18:49:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2022-11-18 18:49:58,712 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2022-11-18 18:49:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-18 18:49:58,712 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-18 18:49:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-18 18:49:58,713 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-18 18:49:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-18 18:49:58,713 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-18 18:49:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 18:49:58,713 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 18:49:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2022-11-18 18:49:58,714 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2022-11-18 18:49:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-18 18:49:58,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-18 18:49:58,715 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-18 18:49:58,716 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-18 18:49:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:49:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-18 18:49:58,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-18 18:49:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2022-11-18 18:49:58,717 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2022-11-18 18:49:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-18 18:49:58,718 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-18 18:49:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2022-11-18 18:49:58,718 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2022-11-18 18:49:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-18 18:49:58,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-18 18:49:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 18:49:58,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 18:49:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 18:49:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 18:49:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 18:49:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2022-11-18 18:49:58,721 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2022-11-18 18:49:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 18:49:58,721 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 18:49:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 18:49:58,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 18:49:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2022-11-18 18:49:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2022-11-18 18:49:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 18:49:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_task [2022-11-18 18:49:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_task [2022-11-18 18:49:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:49:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 18:49:58,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 18:49:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-18 18:49:58,723 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-18 18:49:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 18:49:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 18:49:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-18 18:49:58,725 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-18 18:49:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-18 18:49:58,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-18 18:49:58,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-18 18:49:58,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-18 18:49:58,726 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2022-11-18 18:49:58,727 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2022-11-18 18:49:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-18 18:49:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-18 18:49:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-18 18:49:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-18 18:49:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2022-11-18 18:49:58,729 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2022-11-18 18:49:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-18 18:49:58,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-18 18:49:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:49:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2022-11-18 18:49:58,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2022-11-18 18:49:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:49:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-18 18:49:58,730 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-18 18:49:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_fix_features [2022-11-18 18:49:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_fix_features [2022-11-18 18:49:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 18:49:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 18:49:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:49:58,735 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 18:49:58,735 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-18 18:49:58,735 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-18 18:49:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2022-11-18 18:49:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2022-11-18 18:49:58,738 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-18 18:49:58,739 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-18 18:49:58,739 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2022-11-18 18:49:58,740 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2022-11-18 18:49:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-18 18:49:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-18 18:49:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-18 18:49:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-18 18:49:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 18:49:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 18:49:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2022-11-18 18:49:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2022-11-18 18:49:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_stats [2022-11-18 18:49:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_stats [2022-11-18 18:49:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-18 18:49:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-18 18:49:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-18 18:49:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-18 18:49:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 18:49:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 18:49:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2022-11-18 18:49:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2022-11-18 18:49:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-18 18:49:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-18 18:49:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-18 18:49:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-18 18:49:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:49:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:49:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-18 18:49:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-18 18:49:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-18 18:49:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-18 18:49:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 18:49:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:49:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 18:49:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 18:49:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-18 18:49:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-18 18:49:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-18 18:49:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-18 18:49:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-18 18:49:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-18 18:49:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2022-11-18 18:49:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2022-11-18 18:49:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2022-11-18 18:49:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2022-11-18 18:49:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 18:49:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 18:49:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-18 18:49:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-18 18:49:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-18 18:49:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-18 18:49:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-18 18:49:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-18 18:49:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_mac_addr [2022-11-18 18:49:58,753 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_mac_addr [2022-11-18 18:49:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-18 18:49:58,753 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-18 18:49:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:49:58,753 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:49:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2022-11-18 18:49:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2022-11-18 18:49:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 18:49:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 18:49:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-18 18:49:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-18 18:49:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-18 18:49:58,755 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-18 18:49:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-11-18 18:49:58,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-11-18 18:49:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:49:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-18 18:49:58,757 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-18 18:49:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-18 18:49:58,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-18 18:49:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-18 18:49:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-18 18:49:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2022-11-18 18:49:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2022-11-18 18:49:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:49:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2022-11-18 18:49:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2022-11-18 18:49:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2022-11-18 18:49:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2022-11-18 18:49:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-18 18:49:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-18 18:49:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-18 18:49:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-18 18:49:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2022-11-18 18:49:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2022-11-18 18:49:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:49:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-18 18:49:58,760 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-18 18:49:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2022-11-18 18:49:58,760 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2022-11-18 18:49:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-18 18:49:58,760 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-18 18:49:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-18 18:49:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-18 18:49:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-18 18:49:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-18 18:49:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-18 18:49:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-18 18:49:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 18:49:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 18:49:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-18 18:49:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-18 18:49:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 18:49:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 18:49:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_ioctl [2022-11-18 18:49:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_ioctl [2022-11-18 18:49:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_link_chg_task [2022-11-18 18:49:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_link_chg_task [2022-11-18 18:49:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2022-11-18 18:49:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2022-11-18 18:49:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2022-11-18 18:49:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2022-11-18 18:49:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2022-11-18 18:49:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2022-11-18 18:49:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 18:49:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 18:49:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-18 18:49:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-18 18:49:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-18 18:49:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-18 18:49:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2022-11-18 18:49:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2022-11-18 18:49:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-18 18:49:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-18 18:49:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2022-11-18 18:49:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2022-11-18 18:49:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 18:49:58,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 18:49:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:49:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_slot_reset [2022-11-18 18:49:58,772 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_slot_reset [2022-11-18 18:49:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2022-11-18 18:49:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2022-11-18 18:49:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 18:49:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 18:49:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2022-11-18 18:49:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2022-11-18 18:49:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2022-11-18 18:49:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2022-11-18 18:49:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-18 18:49:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-18 18:49:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-18 18:49:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-18 18:49:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-18 18:49:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-18 18:49:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_features [2022-11-18 18:49:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_features [2022-11-18 18:49:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-18 18:49:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-18 18:49:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2022-11-18 18:49:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2022-11-18 18:49:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-18 18:49:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-18 18:49:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-18 18:49:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-18 18:49:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_6 [2022-11-18 18:49:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_6 [2022-11-18 18:49:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-18 18:49:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-18 18:49:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-18 18:49:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-18 18:49:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2022-11-18 18:49:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2022-11-18 18:49:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-18 18:49:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-18 18:49:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-18 18:49:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-18 18:49:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2022-11-18 18:49:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2022-11-18 18:49:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-18 18:49:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-18 18:49:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-18 18:49:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-18 18:49:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-18 18:49:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-18 18:49:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:49:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-18 18:49:58,779 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-18 18:49:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2022-11-18 18:49:58,779 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2022-11-18 18:49:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2022-11-18 18:49:58,779 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2022-11-18 18:50:00,032 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:50:00,041 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:50:00,488 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 18:50:11,628 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:50:11,669 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:50:11,669 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:50:11,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:50:11 BoogieIcfgContainer [2022-11-18 18:50:11,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:50:11,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:50:11,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:50:11,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:50:11,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:49:52" (1/3) ... [2022-11-18 18:50:11,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3923d9e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:50:11, skipping insertion in model container [2022-11-18 18:50:11,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:57" (2/3) ... [2022-11-18 18:50:11,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3923d9e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:50:11, skipping insertion in model container [2022-11-18 18:50:11,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:50:11" (3/3) ... [2022-11-18 18:50:11,696 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-11-18 18:50:11,718 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:50:11,719 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:50:11,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:50:11,843 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4d5960f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:50:11,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:50:11,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 2818 states, 1960 states have (on average 1.3413265306122448) internal successors, (2629), 1998 states have internal predecessors, (2629), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) [2022-11-18 18:50:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-18 18:50:11,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:50:11,923 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:11,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:50:11,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:11,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1550741076, now seen corresponding path program 1 times [2022-11-18 18:50:11,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:11,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570143333] [2022-11-18 18:50:11,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:11,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:12,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:12,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570143333] [2022-11-18 18:50:12,685 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 18:50:12,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599734930] [2022-11-18 18:50:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:12,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:50:12,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:50:12,689 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:50:12,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:50:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:14,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 3295 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 18:50:14,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:50:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-18 18:50:14,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:50:14,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599734930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:14,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:14,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:14,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089569389] [2022-11-18 18:50:14,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:14,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:50:14,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:14,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:50:14,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:50:14,229 INFO L87 Difference]: Start difference. First operand has 2818 states, 1960 states have (on average 1.3413265306122448) internal successors, (2629), 1998 states have internal predecessors, (2629), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 18:50:14,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:50:14,461 INFO L93 Difference]: Finished difference Result 5631 states and 8190 transitions. [2022-11-18 18:50:14,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:50:14,463 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 173 [2022-11-18 18:50:14,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:50:14,507 INFO L225 Difference]: With dead ends: 5631 [2022-11-18 18:50:14,507 INFO L226 Difference]: Without dead ends: 2789 [2022-11-18 18:50:14,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:50:14,543 INFO L413 NwaCegarLoop]: 4016 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:50:14,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4016 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:50:14,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2022-11-18 18:50:14,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2789. [2022-11-18 18:50:14,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 1944 states have (on average 1.323559670781893) internal successors, (2573), 1969 states have internal predecessors, (2573), 699 states have call successors, (699), 146 states have call predecessors, (699), 145 states have return successors, (698), 694 states have call predecessors, (698), 698 states have call successors, (698) [2022-11-18 18:50:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 3970 transitions. [2022-11-18 18:50:14,765 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 3970 transitions. Word has length 173 [2022-11-18 18:50:14,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:50:14,766 INFO L495 AbstractCegarLoop]: Abstraction has 2789 states and 3970 transitions. [2022-11-18 18:50:14,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 18:50:14,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 3970 transitions. [2022-11-18 18:50:14,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-18 18:50:14,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:50:14,773 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:14,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:50:14,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-18 18:50:14,989 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:50:14,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash 373398180, now seen corresponding path program 1 times [2022-11-18 18:50:14,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:14,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295574130] [2022-11-18 18:50:14,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:14,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:15,269 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 18:50:15,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [615231939] [2022-11-18 18:50:15,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:15,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:50:15,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:50:15,287 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:50:15,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:50:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:16,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 3295 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:50:16,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:50:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-18 18:50:16,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:50:16,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:16,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295574130] [2022-11-18 18:50:16,891 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 18:50:16,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615231939] [2022-11-18 18:50:16,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615231939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:16,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:16,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:50:16,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718539362] [2022-11-18 18:50:16,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:16,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:16,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:16,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:16,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:16,897 INFO L87 Difference]: Start difference. First operand 2789 states and 3970 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:50:17,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:50:17,568 INFO L93 Difference]: Finished difference Result 7669 states and 10934 transitions. [2022-11-18 18:50:17,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:17,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 173 [2022-11-18 18:50:17,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:50:17,612 INFO L225 Difference]: With dead ends: 7669 [2022-11-18 18:50:17,612 INFO L226 Difference]: Without dead ends: 4911 [2022-11-18 18:50:17,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:17,628 INFO L413 NwaCegarLoop]: 4430 mSDtfsCounter, 3047 mSDsluCounter, 3794 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 8224 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:50:17,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3047 Valid, 8224 Invalid, 180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:50:17,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2022-11-18 18:50:17,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 4861. [2022-11-18 18:50:17,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4861 states, 3420 states have (on average 1.3283625730994153) internal successors, (4543), 3469 states have internal predecessors, (4543), 1185 states have call successors, (1185), 257 states have call predecessors, (1185), 255 states have return successors, (1184), 1169 states have call predecessors, (1184), 1184 states have call successors, (1184) [2022-11-18 18:50:17,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4861 states to 4861 states and 6912 transitions. [2022-11-18 18:50:17,874 INFO L78 Accepts]: Start accepts. Automaton has 4861 states and 6912 transitions. Word has length 173 [2022-11-18 18:50:17,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:50:17,875 INFO L495 AbstractCegarLoop]: Abstraction has 4861 states and 6912 transitions. [2022-11-18 18:50:17,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:50:17,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4861 states and 6912 transitions. [2022-11-18 18:50:17,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-11-18 18:50:17,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:50:17,884 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:17,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 18:50:18,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-18 18:50:18,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:50:18,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:18,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1665810055, now seen corresponding path program 1 times [2022-11-18 18:50:18,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:18,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969520808] [2022-11-18 18:50:18,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:18,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:50:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:50:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:50:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:50:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:50:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 18:50:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 18:50:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 18:50:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:50:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:50:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 18:50:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-18 18:50:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 18:50:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 18:50:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-11-18 18:50:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-18 18:50:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:19,309 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-11-18 18:50:19,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:19,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969520808] [2022-11-18 18:50:19,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969520808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:19,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:19,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:50:19,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240804128] [2022-11-18 18:50:19,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:19,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:50:19,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:19,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:50:19,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:50:19,312 INFO L87 Difference]: Start difference. First operand 4861 states and 6912 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:50:25,594 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 [] [2022-11-18 18:50:32,825 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 [] [2022-11-18 18:50:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:50:38,473 INFO L93 Difference]: Finished difference Result 15111 states and 21749 transitions. [2022-11-18 18:50:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:50:38,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 251 [2022-11-18 18:50:38,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:50:38,568 INFO L225 Difference]: With dead ends: 15111 [2022-11-18 18:50:38,568 INFO L226 Difference]: Without dead ends: 10281 [2022-11-18 18:50:38,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:50:38,600 INFO L413 NwaCegarLoop]: 3519 mSDtfsCounter, 8827 mSDsluCounter, 4299 mSDsCounter, 0 mSdLazyCounter, 4373 mSolverCounterSat, 5676 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9258 SdHoareTripleChecker+Valid, 7818 SdHoareTripleChecker+Invalid, 10051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5676 IncrementalHoareTripleChecker+Valid, 4373 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:50:38,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9258 Valid, 7818 Invalid, 10051 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5676 Valid, 4373 Invalid, 2 Unknown, 0 Unchecked, 18.1s Time] [2022-11-18 18:50:38,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10281 states. [2022-11-18 18:50:39,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10281 to 9033. [2022-11-18 18:50:39,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9033 states, 6367 states have (on average 1.3273127061410397) internal successors, (8451), 6461 states have internal predecessors, (8451), 2170 states have call successors, (2170), 499 states have call predecessors, (2170), 495 states have return successors, (2169), 2138 states have call predecessors, (2169), 2169 states have call successors, (2169) [2022-11-18 18:50:39,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9033 states to 9033 states and 12790 transitions. [2022-11-18 18:50:39,167 INFO L78 Accepts]: Start accepts. Automaton has 9033 states and 12790 transitions. Word has length 251 [2022-11-18 18:50:39,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:50:39,168 INFO L495 AbstractCegarLoop]: Abstraction has 9033 states and 12790 transitions. [2022-11-18 18:50:39,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:50:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 9033 states and 12790 transitions. [2022-11-18 18:50:39,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-11-18 18:50:39,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:50:39,187 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:39,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:50:39,188 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:50:39,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:39,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1919083138, now seen corresponding path program 1 times [2022-11-18 18:50:39,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:39,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150327201] [2022-11-18 18:50:39,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:39,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:50:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:50:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:50:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:50:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:50:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 18:50:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 18:50:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 18:50:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:50:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:50:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:50:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-18 18:50:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-18 18:50:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-18 18:50:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 18:50:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-18 18:50:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-11-18 18:50:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-11-18 18:50:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-11-18 18:50:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-11-18 18:50:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-11-18 18:50:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-11-18 18:50:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2022-11-18 18:50:40,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:40,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150327201] [2022-11-18 18:50:40,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150327201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:40,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:40,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:50:40,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719158050] [2022-11-18 18:50:40,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:40,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:50:40,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:40,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:50:40,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:50:40,927 INFO L87 Difference]: Start difference. First operand 9033 states and 12790 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-18 18:50:48,641 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 [] [2022-11-18 18:50:52,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:03,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:51:03,255 INFO L93 Difference]: Finished difference Result 19952 states and 28935 transitions. [2022-11-18 18:51:03,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:51:03,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 358 [2022-11-18 18:51:03,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:51:03,378 INFO L225 Difference]: With dead ends: 19952 [2022-11-18 18:51:03,378 INFO L226 Difference]: Without dead ends: 19949 [2022-11-18 18:51:03,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:51:03,392 INFO L413 NwaCegarLoop]: 3767 mSDtfsCounter, 9004 mSDsluCounter, 6262 mSDsCounter, 0 mSdLazyCounter, 6033 mSolverCounterSat, 5923 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9522 SdHoareTripleChecker+Valid, 10029 SdHoareTripleChecker+Invalid, 11958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5923 IncrementalHoareTripleChecker+Valid, 6033 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:51:03,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9522 Valid, 10029 Invalid, 11958 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5923 Valid, 6033 Invalid, 2 Unknown, 0 Unchecked, 21.1s Time] [2022-11-18 18:51:03,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19949 states. [2022-11-18 18:51:04,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19949 to 17839. [2022-11-18 18:51:04,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17839 states, 12616 states have (on average 1.3291851616994292) internal successors, (16769), 12786 states have internal predecessors, (16769), 4250 states have call successors, (4250), 968 states have call predecessors, (4250), 972 states have return successors, (4317), 4202 states have call predecessors, (4317), 4249 states have call successors, (4317) [2022-11-18 18:51:04,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17839 states to 17839 states and 25336 transitions. [2022-11-18 18:51:04,560 INFO L78 Accepts]: Start accepts. Automaton has 17839 states and 25336 transitions. Word has length 358 [2022-11-18 18:51:04,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:51:04,562 INFO L495 AbstractCegarLoop]: Abstraction has 17839 states and 25336 transitions. [2022-11-18 18:51:04,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-18 18:51:04,564 INFO L276 IsEmpty]: Start isEmpty. Operand 17839 states and 25336 transitions. [2022-11-18 18:51:04,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2022-11-18 18:51:04,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:51:04,614 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:51:04,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:51:04,614 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:51:04,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:51:04,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1950560162, now seen corresponding path program 1 times [2022-11-18 18:51:04,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:51:04,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058357776] [2022-11-18 18:51:04,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:04,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:51:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:05,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:51:05,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058357776] [2022-11-18 18:51:05,034 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 18:51:05,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805528643] [2022-11-18 18:51:05,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:05,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:05,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:51:05,039 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:51:05,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:51:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:07,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 6839 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:51:07,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:51:07,435 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-11-18 18:51:07,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:51:07,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805528643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:51:07,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:51:07,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:51:07,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239310023] [2022-11-18 18:51:07,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:51:07,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:51:07,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:51:07,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:51:07,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:51:07,439 INFO L87 Difference]: Start difference. First operand 17839 states and 25336 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-18 18:51:08,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:51:08,968 INFO L93 Difference]: Finished difference Result 49429 states and 70207 transitions. [2022-11-18 18:51:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:51:08,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 473 [2022-11-18 18:51:08,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:51:09,121 INFO L225 Difference]: With dead ends: 49429 [2022-11-18 18:51:09,121 INFO L226 Difference]: Without dead ends: 31621 [2022-11-18 18:51:09,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:51:09,200 INFO L413 NwaCegarLoop]: 5843 mSDtfsCounter, 3236 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3236 SdHoareTripleChecker+Valid, 9721 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:51:09,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3236 Valid, 9721 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:51:09,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31621 states. [2022-11-18 18:51:11,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31621 to 31610. [2022-11-18 18:51:11,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31610 states, 22457 states have (on average 1.3294295765240236) internal successors, (29855), 22733 states have internal predecessors, (29855), 7392 states have call successors, (7392), 1747 states have call predecessors, (7392), 1760 states have return successors, (7527), 7325 states have call predecessors, (7527), 7391 states have call successors, (7527) [2022-11-18 18:51:11,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31610 states to 31610 states and 44774 transitions. [2022-11-18 18:51:11,526 INFO L78 Accepts]: Start accepts. Automaton has 31610 states and 44774 transitions. Word has length 473 [2022-11-18 18:51:11,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:51:11,527 INFO L495 AbstractCegarLoop]: Abstraction has 31610 states and 44774 transitions. [2022-11-18 18:51:11,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-18 18:51:11,528 INFO L276 IsEmpty]: Start isEmpty. Operand 31610 states and 44774 transitions. [2022-11-18 18:51:11,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2022-11-18 18:51:11,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:51:11,765 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:51:11,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:51:11,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:11,996 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:51:11,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:51:11,997 INFO L85 PathProgramCache]: Analyzing trace with hash 859901389, now seen corresponding path program 1 times [2022-11-18 18:51:11,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:51:11,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868194076] [2022-11-18 18:51:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:11,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:51:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:12,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:51:12,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868194076] [2022-11-18 18:51:12,600 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 18:51:12,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153609008] [2022-11-18 18:51:12,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:12,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:12,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:51:12,602 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:51:12,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:51:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:15,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 7015 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:51:15,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:51:15,277 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-18 18:51:15,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:51:15,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153609008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:51:15,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:51:15,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:51:15,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818271287] [2022-11-18 18:51:15,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:51:15,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:51:15,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:51:15,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:51:15,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:51:15,286 INFO L87 Difference]: Start difference. First operand 31610 states and 44774 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-18 18:51:16,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:51:16,696 INFO L93 Difference]: Finished difference Result 63367 states and 90214 transitions. [2022-11-18 18:51:16,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:51:16,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 508 [2022-11-18 18:51:16,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:51:16,862 INFO L225 Difference]: With dead ends: 63367 [2022-11-18 18:51:16,862 INFO L226 Difference]: Without dead ends: 31802 [2022-11-18 18:51:16,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:51:16,962 INFO L413 NwaCegarLoop]: 3969 mSDtfsCounter, 15 mSDsluCounter, 3953 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 7922 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 [2022-11-18 18:51:16,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 7922 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:51:16,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31802 states. [2022-11-18 18:51:18,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31802 to 31706. [2022-11-18 18:51:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31706 states, 22537 states have (on average 1.3289701379952967) internal successors, (29951), 22813 states have internal predecessors, (29951), 7408 states have call successors, (7408), 1747 states have call predecessors, (7408), 1760 states have return successors, (7543), 7341 states have call predecessors, (7543), 7407 states have call successors, (7543) [2022-11-18 18:51:18,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31706 states to 31706 states and 44902 transitions. [2022-11-18 18:51:18,968 INFO L78 Accepts]: Start accepts. Automaton has 31706 states and 44902 transitions. Word has length 508 [2022-11-18 18:51:18,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:51:18,969 INFO L495 AbstractCegarLoop]: Abstraction has 31706 states and 44902 transitions. [2022-11-18 18:51:18,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-18 18:51:18,969 INFO L276 IsEmpty]: Start isEmpty. Operand 31706 states and 44902 transitions. [2022-11-18 18:51:19,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2022-11-18 18:51:19,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:51:19,042 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:51:19,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:51:19,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:19,255 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:51:19,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:51:19,255 INFO L85 PathProgramCache]: Analyzing trace with hash 487957347, now seen corresponding path program 1 times [2022-11-18 18:51:19,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:51:19,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433252635] [2022-11-18 18:51:19,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:19,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:51:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:19,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:51:19,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433252635] [2022-11-18 18:51:19,916 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 18:51:19,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183308209] [2022-11-18 18:51:19,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:19,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:19,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:51:19,918 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:51:19,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:51:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:22,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 7038 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:51:22,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:51:22,844 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-11-18 18:51:22,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:51:22,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183308209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:51:22,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:51:22,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:51:22,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477731645] [2022-11-18 18:51:22,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:51:22,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:51:22,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:51:22,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:51:22,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:51:22,848 INFO L87 Difference]: Start difference. First operand 31706 states and 44902 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-18 18:51:24,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:51:24,558 INFO L93 Difference]: Finished difference Result 77509 states and 109907 transitions. [2022-11-18 18:51:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:51:24,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 515 [2022-11-18 18:51:24,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:51:24,954 INFO L225 Difference]: With dead ends: 77509 [2022-11-18 18:51:24,954 INFO L226 Difference]: Without dead ends: 45848 [2022-11-18 18:51:25,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:51:25,091 INFO L413 NwaCegarLoop]: 4495 mSDtfsCounter, 3210 mSDsluCounter, 3762 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3210 SdHoareTripleChecker+Valid, 8257 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:51:25,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3210 Valid, 8257 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:51:25,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45848 states. [2022-11-18 18:51:27,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45848 to 45613. [2022-11-18 18:51:27,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45613 states, 32574 states have (on average 1.3330877386872966) internal successors, (43424), 32974 states have internal predecessors, (43424), 10493 states have call successors, (10493), 2526 states have call predecessors, (10493), 2545 states have return successors, (10676), 10388 states have call predecessors, (10676), 10492 states have call successors, (10676) [2022-11-18 18:51:27,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45613 states to 45613 states and 64593 transitions. [2022-11-18 18:51:27,499 INFO L78 Accepts]: Start accepts. Automaton has 45613 states and 64593 transitions. Word has length 515 [2022-11-18 18:51:27,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:51:27,501 INFO L495 AbstractCegarLoop]: Abstraction has 45613 states and 64593 transitions. [2022-11-18 18:51:27,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-18 18:51:27,501 INFO L276 IsEmpty]: Start isEmpty. Operand 45613 states and 64593 transitions. [2022-11-18 18:51:27,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2022-11-18 18:51:27,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:51:27,589 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:51:27,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:51:27,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 18:51:27,803 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:51:27,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:51:27,804 INFO L85 PathProgramCache]: Analyzing trace with hash -345804217, now seen corresponding path program 1 times [2022-11-18 18:51:27,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:51:27,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535027967] [2022-11-18 18:51:27,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:27,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:51:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:28,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:51:28,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535027967] [2022-11-18 18:51:28,541 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 18:51:28,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105542449] [2022-11-18 18:51:28,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:28,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:28,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:51:28,543 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:51:28,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 18:51:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:31,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 7099 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:51:31,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:51:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2022-11-18 18:51:31,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:51:31,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105542449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:51:31,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:51:31,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:51:31,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389832441] [2022-11-18 18:51:31,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:51:31,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:51:31,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:51:31,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:51:31,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:51:31,353 INFO L87 Difference]: Start difference. First operand 45613 states and 64593 transitions. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-18 18:51:33,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:51:33,637 INFO L93 Difference]: Finished difference Result 105679 states and 149763 transitions. [2022-11-18 18:51:33,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:51:33,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 539 [2022-11-18 18:51:33,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:51:34,196 INFO L225 Difference]: With dead ends: 105679 [2022-11-18 18:51:34,198 INFO L226 Difference]: Without dead ends: 60111 [2022-11-18 18:51:34,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:51:34,417 INFO L413 NwaCegarLoop]: 4446 mSDtfsCounter, 3395 mSDsluCounter, 3658 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3395 SdHoareTripleChecker+Valid, 8104 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:51:34,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3395 Valid, 8104 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:51:34,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60111 states. [2022-11-18 18:51:36,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60111 to 59876. [2022-11-18 18:51:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59876 states, 42843 states have (on average 1.337231286324487) internal successors, (57291), 43383 states have internal predecessors, (57291), 13666 states have call successors, (13666), 3341 states have call predecessors, (13666), 3366 states have return successors, (13897), 13523 states have call predecessors, (13897), 13665 states have call successors, (13897) [2022-11-18 18:51:37,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59876 states to 59876 states and 84854 transitions. [2022-11-18 18:51:37,130 INFO L78 Accepts]: Start accepts. Automaton has 59876 states and 84854 transitions. Word has length 539 [2022-11-18 18:51:37,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:51:37,132 INFO L495 AbstractCegarLoop]: Abstraction has 59876 states and 84854 transitions. [2022-11-18 18:51:37,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-18 18:51:37,132 INFO L276 IsEmpty]: Start isEmpty. Operand 59876 states and 84854 transitions. [2022-11-18 18:51:37,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2022-11-18 18:51:37,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:51:37,260 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:51:37,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:51:37,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-18 18:51:37,475 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:51:37,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:51:37,475 INFO L85 PathProgramCache]: Analyzing trace with hash -949958233, now seen corresponding path program 1 times [2022-11-18 18:51:37,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:51:37,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857549140] [2022-11-18 18:51:37,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:37,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:51:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:38,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:51:38,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857549140] [2022-11-18 18:51:38,243 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 18:51:38,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586358369] [2022-11-18 18:51:38,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:38,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:38,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:51:38,245 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:51:38,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 18:51:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:40,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 7207 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:51:41,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:51:41,104 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2022-11-18 18:51:41,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:51:41,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586358369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:51:41,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:51:41,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:51:41,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549852987] [2022-11-18 18:51:41,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:51:41,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:51:41,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:51:41,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:51:41,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:51:41,109 INFO L87 Difference]: Start difference. First operand 59876 states and 84854 transitions. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-18 18:51:43,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:51:43,913 INFO L93 Difference]: Finished difference Result 119942 states and 169928 transitions. [2022-11-18 18:51:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:51:43,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 569 [2022-11-18 18:51:43,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:51:44,222 INFO L225 Difference]: With dead ends: 119942 [2022-11-18 18:51:44,222 INFO L226 Difference]: Without dead ends: 60111 [2022-11-18 18:51:44,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 567 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:51:44,694 INFO L413 NwaCegarLoop]: 7107 mSDtfsCounter, 3689 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3689 SdHoareTripleChecker+Valid, 10461 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:51:44,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3689 Valid, 10461 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:51:44,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60111 states. [2022-11-18 18:51:47,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60111 to 59876. [2022-11-18 18:51:47,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59876 states, 42843 states have (on average 1.3329365357234555) internal successors, (57107), 43383 states have internal predecessors, (57107), 13666 states have call successors, (13666), 3341 states have call predecessors, (13666), 3366 states have return successors, (13897), 13523 states have call predecessors, (13897), 13665 states have call successors, (13897) [2022-11-18 18:51:47,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59876 states to 59876 states and 84670 transitions. [2022-11-18 18:51:47,562 INFO L78 Accepts]: Start accepts. Automaton has 59876 states and 84670 transitions. Word has length 569 [2022-11-18 18:51:47,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:51:47,563 INFO L495 AbstractCegarLoop]: Abstraction has 59876 states and 84670 transitions. [2022-11-18 18:51:47,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-18 18:51:47,563 INFO L276 IsEmpty]: Start isEmpty. Operand 59876 states and 84670 transitions. [2022-11-18 18:51:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 591 [2022-11-18 18:51:47,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:51:47,666 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:51:47,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-18 18:51:47,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a166ffde-bd72-4bd3-85dc-255fc442fdff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:47,867 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:51:47,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:51:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash 5666827, now seen corresponding path program 1 times [2022-11-18 18:51:47,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:51:47,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558639508] [2022-11-18 18:51:47,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:47,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:51:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:51:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:51:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:51:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:51:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 18:51:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 18:51:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 18:51:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:51:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:51:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:51:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-11-18 18:51:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 18:51:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-18 18:51:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-11-18 18:51:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-18 18:51:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-18 18:51:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-18 18:51:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-18 18:51:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 18:51:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-11-18 18:51:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-11-18 18:51:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-18 18:51:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-18 18:51:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 18:51:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:51:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:51:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-11-18 18:51:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-11-18 18:51:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-11-18 18:51:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-11-18 18:51:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-11-18 18:51:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-11-18 18:51:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-11-18 18:51:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-11-18 18:51:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-11-18 18:51:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-11-18 18:51:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-11-18 18:51:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-11-18 18:51:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-11-18 18:51:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2022-11-18 18:51:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2022-11-18 18:51:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-11-18 18:51:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-11-18 18:51:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-11-18 18:51:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-11-18 18:51:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2022-11-18 18:51:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-11-18 18:51:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:51:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2022-11-18 18:51:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2022-11-18 18:51:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 578 [2022-11-18 18:51:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:49,847 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-11-18 18:51:49,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:51:49,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558639508] [2022-11-18 18:51:49,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558639508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:51:49,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:51:49,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:51:49,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715320101] [2022-11-18 18:51:49,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:51:49,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:51:49,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:51:49,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:51:49,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:51:49,854 INFO L87 Difference]: Start difference. First operand 59876 states and 84670 transitions. Second operand has 8 states, 8 states have (on average 36.5) internal successors, (292), 3 states have internal predecessors, (292), 2 states have call successors, (61), 7 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-18 18:51:58,336 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 [] [2022-11-18 18:52:00,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:05,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:10,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:52:10,432 INFO L93 Difference]: Finished difference Result 127338 states and 181749 transitions. [2022-11-18 18:52:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:52:10,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 36.5) internal successors, (292), 3 states have internal predecessors, (292), 2 states have call successors, (61), 7 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 590 [2022-11-18 18:52:10,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:52:10,680 INFO L225 Difference]: With dead ends: 127338 [2022-11-18 18:52:10,680 INFO L226 Difference]: Without dead ends: 67507 [2022-11-18 18:52:10,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:52:10,825 INFO L413 NwaCegarLoop]: 3008 mSDtfsCounter, 5812 mSDsluCounter, 4714 mSDsCounter, 0 mSdLazyCounter, 4126 mSolverCounterSat, 2611 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6312 SdHoareTripleChecker+Valid, 7722 SdHoareTripleChecker+Invalid, 6740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2611 IncrementalHoareTripleChecker+Valid, 4126 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:52:10,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6312 Valid, 7722 Invalid, 6740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2611 Valid, 4126 Invalid, 3 Unknown, 0 Unchecked, 17.2s Time] [2022-11-18 18:52:10,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67507 states. [2022-11-18 18:52:13,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67507 to 59828. [2022-11-18 18:52:13,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59828 states, 42795 states have (on average 1.3329360906647973) internal successors, (57043), 43343 states have internal predecessors, (57043), 13666 states have call successors, (13666), 3341 states have call predecessors, (13666), 3366 states have return successors, (13897), 13515 states have call predecessors, (13897), 13665 states have call successors, (13897) [2022-11-18 18:52:13,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59828 states to 59828 states and 84606 transitions. [2022-11-18 18:52:13,822 INFO L78 Accepts]: Start accepts. Automaton has 59828 states and 84606 transitions. Word has length 590 [2022-11-18 18:52:13,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:52:13,824 INFO L495 AbstractCegarLoop]: Abstraction has 59828 states and 84606 transitions. [2022-11-18 18:52:13,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 36.5) internal successors, (292), 3 states have internal predecessors, (292), 2 states have call successors, (61), 7 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-18 18:52:13,825 INFO L276 IsEmpty]: Start isEmpty. Operand 59828 states and 84606 transitions. [2022-11-18 18:52:13,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2022-11-18 18:52:13,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:52:13,951 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:52:13,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:52:13,952 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:52:13,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:52:13,953 INFO L85 PathProgramCache]: Analyzing trace with hash 718382419, now seen corresponding path program 1 times [2022-11-18 18:52:13,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:52:13,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926574403] [2022-11-18 18:52:13,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:52:13,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:52:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:52:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:52:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:52:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:52:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:52:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 18:52:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 18:52:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 18:52:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:52:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:52:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:52:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-18 18:52:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-18 18:52:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-18 18:52:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 18:52:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-18 18:52:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-11-18 18:52:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-11-18 18:52:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-11-18 18:52:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-18 18:52:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-11-18 18:52:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-11-18 18:52:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-11-18 18:52:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-11-18 18:52:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-11-18 18:52:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-11-18 18:52:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-11-18 18:52:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-11-18 18:52:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:15,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-11-18 18:52:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 18:52:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:52:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:52:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-11-18 18:52:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-11-18 18:52:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-11-18 18:52:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-11-18 18:52:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-11-18 18:52:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-11-18 18:52:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2022-11-18 18:52:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-11-18 18:52:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-11-18 18:52:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2022-11-18 18:52:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-11-18 18:52:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-11-18 18:52:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-11-18 18:52:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2022-11-18 18:52:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2022-11-18 18:52:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2022-11-18 18:52:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2022-11-18 18:52:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2022-11-18 18:52:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 586 [2022-11-18 18:52:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 603 [2022-11-18 18:52:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2022-11-18 18:52:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:52:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 629 [2022-11-18 18:52:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2022-11-18 18:52:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 650 [2022-11-18 18:52:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:16,407 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2022-11-18 18:52:16,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:52:16,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926574403] [2022-11-18 18:52:16,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926574403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:52:16,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:52:16,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:52:16,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283929553] [2022-11-18 18:52:16,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:52:16,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:52:16,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:52:16,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:52:16,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:52:16,412 INFO L87 Difference]: Start difference. First operand 59828 states and 84606 transitions. Second operand has 9 states, 9 states have (on average 33.22222222222222) internal successors, (299), 4 states have internal predecessors, (299), 2 states have call successors, (66), 7 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-18 18:52:26,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:32,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:34,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:36,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:40,278 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 [] [2022-11-18 18:52:46,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:52:46,118 INFO L93 Difference]: Finished difference Result 128924 states and 184391 transitions. [2022-11-18 18:52:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:52:46,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 33.22222222222222) internal successors, (299), 4 states have internal predecessors, (299), 2 states have call successors, (66), 7 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 662 [2022-11-18 18:52:46,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:52:46,430 INFO L225 Difference]: With dead ends: 128924 [2022-11-18 18:52:46,430 INFO L226 Difference]: Without dead ends: 69141 [2022-11-18 18:52:46,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:52:46,570 INFO L413 NwaCegarLoop]: 4027 mSDtfsCounter, 3758 mSDsluCounter, 11111 mSDsCounter, 0 mSdLazyCounter, 7808 mSolverCounterSat, 1535 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4013 SdHoareTripleChecker+Valid, 15138 SdHoareTripleChecker+Invalid, 9346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1535 IncrementalHoareTripleChecker+Valid, 7808 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:52:46,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4013 Valid, 15138 Invalid, 9346 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1535 Valid, 7808 Invalid, 3 Unknown, 0 Unchecked, 25.8s Time] [2022-11-18 18:52:46,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69141 states. [2022-11-18 18:52:49,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69141 to 59828. [2022-11-18 18:52:49,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59828 states, 42795 states have (on average 1.3325622152120575) internal successors, (57027), 43343 states have internal predecessors, (57027), 13666 states have call successors, (13666), 3341 states have call predecessors, (13666), 3366 states have return successors, (13897), 13515 states have call predecessors, (13897), 13665 states have call successors, (13897) [2022-11-18 18:52:49,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59828 states to 59828 states and 84590 transitions. [2022-11-18 18:52:49,808 INFO L78 Accepts]: Start accepts. Automaton has 59828 states and 84590 transitions. Word has length 662 [2022-11-18 18:52:49,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:52:49,810 INFO L495 AbstractCegarLoop]: Abstraction has 59828 states and 84590 transitions. [2022-11-18 18:52:49,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.22222222222222) internal successors, (299), 4 states have internal predecessors, (299), 2 states have call successors, (66), 7 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-18 18:52:49,810 INFO L276 IsEmpty]: Start isEmpty. Operand 59828 states and 84590 transitions. [2022-11-18 18:52:49,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2022-11-18 18:52:49,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:52:49,948 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:52:49,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:52:49,948 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:52:49,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:52:49,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1898371334, now seen corresponding path program 1 times [2022-11-18 18:52:49,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:52:49,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956660627] [2022-11-18 18:52:49,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:52:49,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:52:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:52:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:52:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:52:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:52:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:52:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 18:52:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 18:52:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 18:52:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:52:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:52:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:52:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-18 18:52:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-18 18:52:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-18 18:52:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 18:52:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-18 18:52:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-11-18 18:52:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-11-18 18:52:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-11-18 18:52:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-18 18:52:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-11-18 18:52:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:51,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-11-18 18:52:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-11-18 18:52:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-11-18 18:52:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-11-18 18:52:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-11-18 18:52:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-11-18 18:52:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-11-18 18:52:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-11-18 18:52:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-11-18 18:52:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-11-18 18:52:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-11-18 18:52:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-11-18 18:52:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-11-18 18:52:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-11-18 18:52:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 18:52:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:52:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:52:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-11-18 18:52:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2022-11-18 18:52:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-11-18 18:52:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-11-18 18:52:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2022-11-18 18:52:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2022-11-18 18:52:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-11-18 18:52:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2022-11-18 18:52:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-11-18 18:52:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-11-18 18:52:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2022-11-18 18:52:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-11-18 18:52:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-11-18 18:52:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-11-18 18:52:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2022-11-18 18:52:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2022-11-18 18:52:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2022-11-18 18:52:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-11-18 18:52:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2022-11-18 18:52:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2022-11-18 18:52:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-11-18 18:52:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:52:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 656 [2022-11-18 18:52:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2022-11-18 18:52:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 677 [2022-11-18 18:52:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:52,475 INFO L134 CoverageAnalysis]: Checked inductivity of 947 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 923 trivial. 0 not checked. [2022-11-18 18:52:52,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:52:52,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956660627] [2022-11-18 18:52:52,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956660627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:52:52,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:52:52,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:52:52,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004148907] [2022-11-18 18:52:52,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:52:52,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:52:52,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:52:52,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:52:52,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:52:52,479 INFO L87 Difference]: Start difference. First operand 59828 states and 84590 transitions. Second operand has 9 states, 9 states have (on average 34.22222222222222) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (72), 7 states have call predecessors, (72), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2022-11-18 18:53:03,172 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 [] [2022-11-18 18:53:05,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:07,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:14,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:21,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:23,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:29,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:35,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:53:35,501 INFO L93 Difference]: Finished difference Result 160642 states and 236957 transitions. [2022-11-18 18:53:35,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:53:35,502 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 34.22222222222222) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (72), 7 states have call predecessors, (72), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 689 [2022-11-18 18:53:35,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:53:35,943 INFO L225 Difference]: With dead ends: 160642 [2022-11-18 18:53:35,943 INFO L226 Difference]: Without dead ends: 100859 [2022-11-18 18:53:36,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:53:36,118 INFO L413 NwaCegarLoop]: 4534 mSDtfsCounter, 6204 mSDsluCounter, 15251 mSDsCounter, 0 mSdLazyCounter, 11426 mSolverCounterSat, 3768 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6838 SdHoareTripleChecker+Valid, 19785 SdHoareTripleChecker+Invalid, 15201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3768 IncrementalHoareTripleChecker+Valid, 11426 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:53:36,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6838 Valid, 19785 Invalid, 15201 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3768 Valid, 11426 Invalid, 7 Unknown, 0 Unchecked, 37.4s Time] [2022-11-18 18:53:36,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100859 states.