./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--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 14:00:43,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 14:00:43,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 14:00:43,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 14:00:43,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 14:00:43,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 14:00:43,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 14:00:43,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 14:00:43,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 14:00:43,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 14:00:43,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 14:00:43,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 14:00:43,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 14:00:43,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 14:00:43,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 14:00:43,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 14:00:43,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 14:00:43,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 14:00:43,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 14:00:43,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 14:00:43,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 14:00:43,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 14:00:43,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 14:00:43,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 14:00:43,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 14:00:43,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 14:00:43,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 14:00:43,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 14:00:43,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 14:00:43,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 14:00:43,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 14:00:43,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 14:00:43,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 14:00:43,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 14:00:43,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 14:00:43,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 14:00:43,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 14:00:43,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 14:00:43,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 14:00:43,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 14:00:43,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 14:00:43,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 14:00:43,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 14:00:43,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 14:00:43,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 14:00:43,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 14:00:43,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 14:00:43,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 14:00:43,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 14:00:43,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 14:00:43,630 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 14:00:43,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 14:00:43,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 14:00:43,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 14:00:43,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 14:00:43,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 14:00:43,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 14:00:43,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 14:00:43,634 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 14:00:43,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 14:00:43,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 14:00:43,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 14:00:43,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 14:00:43,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:00:43,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 14:00:43,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 14:00:43,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 14:00:43,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 14:00:43,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 14:00:43,637 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 14:00:43,637 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 14:00:43,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 14:00:43,638 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_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 [2022-11-21 14:00:43,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 14:00:44,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 14:00:44,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 14:00:44,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 14:00:44,017 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 14:00:44,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-21 14:00:47,206 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 14:00:47,960 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 14:00:47,961 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-21 14:00:48,020 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/data/f3b3b1fc9/0d19a9960a884c88a4524407747e346c/FLAGfedc30463 [2022-11-21 14:00:48,040 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/data/f3b3b1fc9/0d19a9960a884c88a4524407747e346c [2022-11-21 14:00:48,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 14:00:48,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 14:00:48,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 14:00:48,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 14:00:48,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 14:00:48,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:00:48" (1/1) ... [2022-11-21 14:00:48,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c05c284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:48, skipping insertion in model container [2022-11-21 14:00:48,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:00:48" (1/1) ... [2022-11-21 14:00:48,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 14:00:48,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 14:00:52,156 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2022-11-21 14:00:52,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:00:52,322 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 14:00:52,962 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2022-11-21 14:00:52,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:00:53,170 INFO L208 MainTranslator]: Completed translation [2022-11-21 14:00:53,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53 WrapperNode [2022-11-21 14:00:53,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 14:00:53,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 14:00:53,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 14:00:53,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 14:00:53,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (1/1) ... [2022-11-21 14:00:53,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (1/1) ... [2022-11-21 14:00:53,734 INFO L138 Inliner]: procedures = 440, calls = 4554, calls flagged for inlining = 181, calls inlined = 178, statements flattened = 8247 [2022-11-21 14:00:53,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 14:00:53,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 14:00:53,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 14:00:53,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 14:00:53,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (1/1) ... [2022-11-21 14:00:53,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (1/1) ... [2022-11-21 14:00:53,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (1/1) ... [2022-11-21 14:00:53,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (1/1) ... [2022-11-21 14:00:54,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (1/1) ... [2022-11-21 14:00:54,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (1/1) ... [2022-11-21 14:00:54,148 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (1/1) ... [2022-11-21 14:00:54,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (1/1) ... [2022-11-21 14:00:54,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 14:00:54,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 14:00:54,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 14:00:54,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 14:00:54,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (1/1) ... [2022-11-21 14:00:54,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:00:54,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:00:54,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 14:00:54,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 14:00:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-11-21 14:00:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-11-21 14:00:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-21 14:00:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-21 14:00:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-11-21 14:00:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-11-21 14:00:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-11-21 14:00:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-11-21 14:00:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-21 14:00:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-21 14:00:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-21 14:00:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-21 14:00:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-21 14:00:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-21 14:00:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 14:00:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 14:00:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-11-21 14:00:54,321 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-11-21 14:00:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-11-21 14:00:54,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-11-21 14:00:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2022-11-21 14:00:54,321 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2022-11-21 14:00:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-21 14:00:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-21 14:00:54,322 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2022-11-21 14:00:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2022-11-21 14:00:54,322 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-21 14:00:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-21 14:00:54,322 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-21 14:00:54,323 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-21 14:00:54,323 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-21 14:00:54,323 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-21 14:00:54,324 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-21 14:00:54,324 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-21 14:00:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 14:00:54,325 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 14:00:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-11-21 14:00:54,326 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-11-21 14:00:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-11-21 14:00:54,326 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-11-21 14:00:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-11-21 14:00:54,326 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-11-21 14:00:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-11-21 14:00:54,327 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-11-21 14:00:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-11-21 14:00:54,327 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-11-21 14:00:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-11-21 14:00:54,327 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-11-21 14:00:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-21 14:00:54,328 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-21 14:00:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-21 14:00:54,328 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-21 14:00:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 14:00:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-11-21 14:00:54,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-11-21 14:00:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-11-21 14:00:54,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-11-21 14:00:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-21 14:00:54,329 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-21 14:00:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-11-21 14:00:54,329 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-11-21 14:00:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 14:00:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-11-21 14:00:54,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-11-21 14:00:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-21 14:00:54,329 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-21 14:00:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-21 14:00:54,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-21 14:00:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-11-21 14:00:54,330 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-11-21 14:00:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 14:00:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-11-21 14:00:54,330 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-11-21 14:00:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2022-11-21 14:00:54,331 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2022-11-21 14:00:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 14:00:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_10 [2022-11-21 14:00:54,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_10 [2022-11-21 14:00:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-21 14:00:54,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-21 14:00:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-11-21 14:00:54,331 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-11-21 14:00:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 14:00:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 14:00:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-21 14:00:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-21 14:00:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-21 14:00:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-21 14:00:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-21 14:00:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-21 14:00:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-11-21 14:00:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-11-21 14:00:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-11-21 14:00:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-11-21 14:00:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-21 14:00:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-21 14:00:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-21 14:00:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-21 14:00:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-11-21 14:00:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-11-21 14:00:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-11-21 14:00:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-11-21 14:00:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-11-21 14:00:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-11-21 14:00:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-21 14:00:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-21 14:00:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-21 14:00:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-21 14:00:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 14:00:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 14:00:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-21 14:00:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-21 14:00:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-21 14:00:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-21 14:00:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-11-21 14:00:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-11-21 14:00:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-21 14:00:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-21 14:00:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 14:00:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 14:00:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 14:00:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_10 [2022-11-21 14:00:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_10 [2022-11-21 14:00:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-11-21 14:00:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-11-21 14:00:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2022-11-21 14:00:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2022-11-21 14:00:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-11-21 14:00:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-11-21 14:00:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2022-11-21 14:00:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2022-11-21 14:00:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2022-11-21 14:00:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2022-11-21 14:00:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-11-21 14:00:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-11-21 14:00:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-11-21 14:00:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-11-21 14:00:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-11-21 14:00:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-11-21 14:00:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2022-11-21 14:00:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2022-11-21 14:00:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-21 14:00:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-21 14:00:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 14:00:54,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 14:00:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-21 14:00:54,387 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-21 14:00:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-11-21 14:00:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-11-21 14:00:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 14:00:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 14:00:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2022-11-21 14:00:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2022-11-21 14:00:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 14:00:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 14:00:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-11-21 14:00:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-11-21 14:00:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-21 14:00:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-21 14:00:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2022-11-21 14:00:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2022-11-21 14:00:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_4 [2022-11-21 14:00:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_4 [2022-11-21 14:00:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_9 [2022-11-21 14:00:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_9 [2022-11-21 14:00:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-11-21 14:00:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-11-21 14:00:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-11-21 14:00:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-11-21 14:00:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2022-11-21 14:00:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2022-11-21 14:00:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-21 14:00:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-21 14:00:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-11-21 14:00:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-11-21 14:00:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-11-21 14:00:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-11-21 14:00:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2022-11-21 14:00:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2022-11-21 14:00:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 14:00:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 14:00:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-21 14:00:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-21 14:00:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-21 14:00:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-21 14:00:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-11-21 14:00:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-11-21 14:00:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-21 14:00:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-21 14:00:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-21 14:00:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-21 14:00:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 14:00:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 14:00:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2022-11-21 14:00:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2022-11-21 14:00:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-11-21 14:00:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-11-21 14:00:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 14:00:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-11-21 14:00:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-11-21 14:00:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 14:00:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2022-11-21 14:00:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2022-11-21 14:00:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-21 14:00:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-21 14:00:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 14:00:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_init [2022-11-21 14:00:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_init [2022-11-21 14:00:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-21 14:00:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-21 14:00:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-21 14:00:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-21 14:00:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2022-11-21 14:00:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2022-11-21 14:00:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-11-21 14:00:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-11-21 14:00:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-11-21 14:00:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-11-21 14:00:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2022-11-21 14:00:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2022-11-21 14:00:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_beacon_work [2022-11-21 14:00:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_beacon_work [2022-11-21 14:00:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-11-21 14:00:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-11-21 14:00:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-21 14:00:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-21 14:00:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-11-21 14:00:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-11-21 14:00:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2022-11-21 14:00:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2022-11-21 14:00:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-11-21 14:00:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-11-21 14:00:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 14:00:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-11-21 14:00:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-11-21 14:00:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-21 14:00:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-21 14:00:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 14:00:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 14:00:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-11-21 14:00:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-11-21 14:00:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-11-21 14:00:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-11-21 14:00:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2022-11-21 14:00:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2022-11-21 14:00:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-21 14:00:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-21 14:00:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-21 14:00:54,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-21 14:00:54,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-21 14:00:54,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-21 14:00:54,403 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_stop [2022-11-21 14:00:54,404 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_stop [2022-11-21 14:00:54,405 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-21 14:00:54,405 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-21 14:00:54,405 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-11-21 14:00:54,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-11-21 14:00:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-21 14:00:54,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-21 14:00:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-21 14:00:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-21 14:00:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-11-21 14:00:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-11-21 14:00:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-11-21 14:00:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-11-21 14:00:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 14:00:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-11-21 14:00:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-11-21 14:00:54,414 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2022-11-21 14:00:54,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2022-11-21 14:00:54,414 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-11-21 14:00:54,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-11-21 14:00:54,414 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-11-21 14:00:54,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-11-21 14:00:54,414 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-21 14:00:54,415 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-21 14:00:55,565 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 14:00:55,569 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 14:00:56,096 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 14:01:06,561 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 14:01:06,596 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 14:01:06,596 INFO L300 CfgBuilder]: Removed 78 assume(true) statements. [2022-11-21 14:01:06,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:01:06 BoogieIcfgContainer [2022-11-21 14:01:06,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 14:01:06,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 14:01:06,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 14:01:06,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 14:01:06,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:00:48" (1/3) ... [2022-11-21 14:01:06,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2b2c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:01:06, skipping insertion in model container [2022-11-21 14:01:06,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:53" (2/3) ... [2022-11-21 14:01:06,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2b2c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:01:06, skipping insertion in model container [2022-11-21 14:01:06,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:01:06" (3/3) ... [2022-11-21 14:01:06,616 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-21 14:01:06,636 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 14:01:06,636 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 14:01:06,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 14:01:06,782 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;@52b0ce80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 14:01:06,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 14:01:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 3719 states, 2129 states have (on average 1.3100046970408643) internal successors, (2789), 2284 states have internal predecessors, (2789), 1537 states have call successors, (1537), 130 states have call predecessors, (1537), 129 states have return successors, (1522), 1485 states have call predecessors, (1522), 1522 states have call successors, (1522) [2022-11-21 14:01:06,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-21 14:01:06,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:01:06,851 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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] [2022-11-21 14:01:06,852 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 14:01:06,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:06,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1390256745, now seen corresponding path program 1 times [2022-11-21 14:01:06,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:06,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001166172] [2022-11-21 14:01:06,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:06,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:07,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 14:01:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 14:01:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 14:01:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 14:01:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 14:01:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 14:01:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 14:01:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-21 14:01:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 14:01:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 14:01:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 14:01:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-21 14:01:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-21 14:01:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-21 14:01:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-21 14:01:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:08,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:09,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-21 14:01:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:09,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-21 14:01:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:09,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:09,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-21 14:01:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:09,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:09,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2022-11-21 14:01:09,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:09,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001166172] [2022-11-21 14:01:09,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001166172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:09,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:09,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 14:01:09,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476139965] [2022-11-21 14:01:09,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:09,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 14:01:09,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:09,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 14:01:09,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 14:01:09,261 INFO L87 Difference]: Start difference. First operand has 3719 states, 2129 states have (on average 1.3100046970408643) internal successors, (2789), 2284 states have internal predecessors, (2789), 1537 states have call successors, (1537), 130 states have call predecessors, (1537), 129 states have return successors, (1522), 1485 states have call predecessors, (1522), 1522 states have call successors, (1522) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 14:01:14,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:01:15,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:01:16,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:01:28,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 14:01:28,158 INFO L93 Difference]: Finished difference Result 7405 states and 11716 transitions. [2022-11-21 14:01:28,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 14:01:28,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 277 [2022-11-21 14:01:28,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 14:01:28,234 INFO L225 Difference]: With dead ends: 7405 [2022-11-21 14:01:28,234 INFO L226 Difference]: Without dead ends: 3663 [2022-11-21 14:01:28,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-21 14:01:28,276 INFO L413 NwaCegarLoop]: 2926 mSDtfsCounter, 2256 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 4225 mSolverCounterSat, 4653 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2267 SdHoareTripleChecker+Valid, 5679 SdHoareTripleChecker+Invalid, 8878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4653 IncrementalHoareTripleChecker+Valid, 4225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-11-21 14:01:28,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2267 Valid, 5679 Invalid, 8878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4653 Valid, 4225 Invalid, 0 Unknown, 0 Unchecked, 18.0s Time] [2022-11-21 14:01:28,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2022-11-21 14:01:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3457. [2022-11-21 14:01:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3457 states, 1884 states have (on average 1.2977707006369428) internal successors, (2445), 1953 states have internal predecessors, (2445), 1444 states have call successors, (1444), 129 states have call predecessors, (1444), 128 states have return successors, (1443), 1406 states have call predecessors, (1443), 1443 states have call successors, (1443) [2022-11-21 14:01:28,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 5332 transitions. [2022-11-21 14:01:28,785 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 5332 transitions. Word has length 277 [2022-11-21 14:01:28,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 14:01:28,787 INFO L495 AbstractCegarLoop]: Abstraction has 3457 states and 5332 transitions. [2022-11-21 14:01:28,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 14:01:28,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 5332 transitions. [2022-11-21 14:01:28,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-21 14:01:28,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:01:28,799 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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] [2022-11-21 14:01:28,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 14:01:28,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 14:01:28,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:28,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1756852351, now seen corresponding path program 1 times [2022-11-21 14:01:28,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:28,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587384184] [2022-11-21 14:01:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:28,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 14:01:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 14:01:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 14:01:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 14:01:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 14:01:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 14:01:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 14:01:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-21 14:01:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:29,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 14:01:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 14:01:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 14:01:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-21 14:01:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 14:01:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-21 14:01:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-21 14:01:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-21 14:01:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-21 14:01:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-21 14:01:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-21 14:01:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 14:01:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2022-11-21 14:01:30,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:30,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587384184] [2022-11-21 14:01:30,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587384184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:30,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:30,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 14:01:30,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167290821] [2022-11-21 14:01:30,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:30,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 14:01:30,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:30,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 14:01:30,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 14:01:30,401 INFO L87 Difference]: Start difference. First operand 3457 states and 5332 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-21 14:01:32,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:01:34,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:01:36,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:01:41,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:01:45,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:01:47,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:01:49,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:01:55,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:01:58,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 14:02:12,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 14:02:12,927 INFO L93 Difference]: Finished difference Result 10083 states and 15635 transitions. [2022-11-21 14:02:12,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 14:02:12,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 277 [2022-11-21 14:02:12,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 14:02:12,988 INFO L225 Difference]: With dead ends: 10083 [2022-11-21 14:02:12,988 INFO L226 Difference]: Without dead ends: 6666 [2022-11-21 14:02:13,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-21 14:02:13,015 INFO L413 NwaCegarLoop]: 3936 mSDtfsCounter, 6081 mSDsluCounter, 5890 mSDsCounter, 0 mSdLazyCounter, 9642 mSolverCounterSat, 9744 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6463 SdHoareTripleChecker+Valid, 9826 SdHoareTripleChecker+Invalid, 19390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9744 IncrementalHoareTripleChecker+Valid, 9642 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2022-11-21 14:02:13,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6463 Valid, 9826 Invalid, 19390 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9744 Valid, 9642 Invalid, 4 Unknown, 0 Unchecked, 41.5s Time] [2022-11-21 14:02:13,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6666 states. [2022-11-21 14:02:13,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6666 to 6304. [2022-11-21 14:02:13,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6304 states, 3382 states have (on average 1.2971614429331757) internal successors, (4387), 3499 states have internal predecessors, (4387), 2676 states have call successors, (2676), 244 states have call predecessors, (2676), 245 states have return successors, (2684), 2622 states have call predecessors, (2684), 2675 states have call successors, (2684) [2022-11-21 14:02:13,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6304 states to 6304 states and 9747 transitions. [2022-11-21 14:02:13,644 INFO L78 Accepts]: Start accepts. Automaton has 6304 states and 9747 transitions. Word has length 277 [2022-11-21 14:02:13,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 14:02:13,646 INFO L495 AbstractCegarLoop]: Abstraction has 6304 states and 9747 transitions. [2022-11-21 14:02:13,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-21 14:02:13,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6304 states and 9747 transitions. [2022-11-21 14:02:13,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-21 14:02:13,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:02:13,663 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-21 14:02:13,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 14:02:13,663 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 14:02:13,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:13,664 INFO L85 PathProgramCache]: Analyzing trace with hash 864125415, now seen corresponding path program 1 times [2022-11-21 14:02:13,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:13,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853525273] [2022-11-21 14:02:13,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:13,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:13,992 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 14:02:13,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691490280] [2022-11-21 14:02:13,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:13,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 14:02:13,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:02:13,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 14:02:14,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 14:02:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:15,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 5983 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 14:02:15,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 14:02:16,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-21 14:02:16,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 14:02:16,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:16,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853525273] [2022-11-21 14:02:16,665 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 14:02:16,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691490280] [2022-11-21 14:02:16,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691490280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:16,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:16,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 14:02:16,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757595591] [2022-11-21 14:02:16,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:16,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 14:02:16,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:16,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 14:02:16,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 14:02:16,668 INFO L87 Difference]: Start difference. First operand 6304 states and 9747 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-21 14:02:17,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 14:02:17,267 INFO L93 Difference]: Finished difference Result 12592 states and 19470 transitions. [2022-11-21 14:02:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 14:02:17,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 329 [2022-11-21 14:02:17,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 14:02:17,321 INFO L225 Difference]: With dead ends: 12592 [2022-11-21 14:02:17,322 INFO L226 Difference]: Without dead ends: 6328 [2022-11-21 14:02:17,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 14:02:17,374 INFO L413 NwaCegarLoop]: 5335 mSDtfsCounter, 5258 mSDsluCounter, 10649 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5262 SdHoareTripleChecker+Valid, 15984 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 14:02:17,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5262 Valid, 15984 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 14:02:17,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6328 states. [2022-11-21 14:02:18,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6328 to 6322. [2022-11-21 14:02:18,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6322 states, 3398 states have (on average 1.2969393761035903) internal successors, (4407), 3515 states have internal predecessors, (4407), 2676 states have call successors, (2676), 246 states have call predecessors, (2676), 247 states have return successors, (2684), 2622 states have call predecessors, (2684), 2675 states have call successors, (2684) [2022-11-21 14:02:18,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6322 states to 6322 states and 9767 transitions. [2022-11-21 14:02:18,155 INFO L78 Accepts]: Start accepts. Automaton has 6322 states and 9767 transitions. Word has length 329 [2022-11-21 14:02:18,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 14:02:18,158 INFO L495 AbstractCegarLoop]: Abstraction has 6322 states and 9767 transitions. [2022-11-21 14:02:18,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-21 14:02:18,160 INFO L276 IsEmpty]: Start isEmpty. Operand 6322 states and 9767 transitions. [2022-11-21 14:02:18,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-21 14:02:18,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:02:18,172 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-21 14:02:18,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 14:02:18,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 14:02:18,395 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 14:02:18,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:18,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1968897295, now seen corresponding path program 1 times [2022-11-21 14:02:18,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:18,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569383067] [2022-11-21 14:02:18,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:18,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:18,721 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 14:02:18,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227184892] [2022-11-21 14:02:18,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:18,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 14:02:18,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:02:18,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 14:02:18,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 14:02:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:20,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 5981 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 14:02:20,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 14:02:21,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-21 14:02:21,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 14:02:21,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:21,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569383067] [2022-11-21 14:02:21,224 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 14:02:21,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227184892] [2022-11-21 14:02:21,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227184892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:21,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:21,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 14:02:21,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781852249] [2022-11-21 14:02:21,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:21,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 14:02:21,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:21,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 14:02:21,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 14:02:21,227 INFO L87 Difference]: Start difference. First operand 6322 states and 9767 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-21 14:02:22,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 14:02:22,408 INFO L93 Difference]: Finished difference Result 18928 states and 29239 transitions. [2022-11-21 14:02:22,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 14:02:22,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 328 [2022-11-21 14:02:22,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 14:02:22,555 INFO L225 Difference]: With dead ends: 18928 [2022-11-21 14:02:22,555 INFO L226 Difference]: Without dead ends: 12646 [2022-11-21 14:02:22,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 14:02:22,620 INFO L413 NwaCegarLoop]: 6904 mSDtfsCounter, 5270 mSDsluCounter, 19074 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5274 SdHoareTripleChecker+Valid, 25978 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 14:02:22,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5274 Valid, 25978 Invalid, 27 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 14:02:22,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12646 states. [2022-11-21 14:02:24,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12646 to 12591. [2022-11-21 14:02:24,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12591 states, 6765 states have (on average 1.29830007390983) internal successors, (8783), 7005 states have internal predecessors, (8783), 5331 states have call successors, (5331), 491 states have call predecessors, (5331), 494 states have return successors, (5348), 5218 states have call predecessors, (5348), 5330 states have call successors, (5348) [2022-11-21 14:02:24,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12591 states to 12591 states and 19462 transitions. [2022-11-21 14:02:24,166 INFO L78 Accepts]: Start accepts. Automaton has 12591 states and 19462 transitions. Word has length 328 [2022-11-21 14:02:24,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 14:02:24,171 INFO L495 AbstractCegarLoop]: Abstraction has 12591 states and 19462 transitions. [2022-11-21 14:02:24,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-21 14:02:24,171 INFO L276 IsEmpty]: Start isEmpty. Operand 12591 states and 19462 transitions. [2022-11-21 14:02:24,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-21 14:02:24,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:02:24,185 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-21 14:02:24,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 14:02:24,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 14:02:24,405 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 14:02:24,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:24,405 INFO L85 PathProgramCache]: Analyzing trace with hash -909831783, now seen corresponding path program 1 times [2022-11-21 14:02:24,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:24,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720766786] [2022-11-21 14:02:24,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:24,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:24,634 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 14:02:24,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1728082106] [2022-11-21 14:02:24,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:24,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 14:02:24,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:02:24,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 14:02:24,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 14:02:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:26,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 5995 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 14:02:26,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 14:02:27,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-21 14:02:27,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 14:02:27,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:27,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720766786] [2022-11-21 14:02:27,279 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 14:02:27,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728082106] [2022-11-21 14:02:27,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728082106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:27,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:27,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 14:02:27,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248363395] [2022-11-21 14:02:27,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:27,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 14:02:27,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:27,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 14:02:27,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 14:02:27,282 INFO L87 Difference]: Start difference. First operand 12591 states and 19462 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-21 14:02:28,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 14:02:28,846 INFO L93 Difference]: Finished difference Result 37753 states and 58386 transitions. [2022-11-21 14:02:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 14:02:28,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 325 [2022-11-21 14:02:28,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 14:02:29,013 INFO L225 Difference]: With dead ends: 37753 [2022-11-21 14:02:29,014 INFO L226 Difference]: Without dead ends: 25202 [2022-11-21 14:02:29,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 14:02:29,090 INFO L413 NwaCegarLoop]: 7430 mSDtfsCounter, 5274 mSDsluCounter, 20124 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5278 SdHoareTripleChecker+Valid, 27554 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 14:02:29,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5278 Valid, 27554 Invalid, 44 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 14:02:29,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25202 states. [2022-11-21 14:02:32,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25202 to 25159. [2022-11-21 14:02:32,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25159 states, 13523 states have (on average 1.2990460696590993) internal successors, (17567), 14019 states have internal predecessors, (17567), 10643 states have call successors, (10643), 985 states have call predecessors, (10643), 992 states have return successors, (10702), 10402 states have call predecessors, (10702), 10642 states have call successors, (10702) [2022-11-21 14:02:32,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25159 states to 25159 states and 38912 transitions. [2022-11-21 14:02:32,295 INFO L78 Accepts]: Start accepts. Automaton has 25159 states and 38912 transitions. Word has length 325 [2022-11-21 14:02:32,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 14:02:32,297 INFO L495 AbstractCegarLoop]: Abstraction has 25159 states and 38912 transitions. [2022-11-21 14:02:32,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-21 14:02:32,297 INFO L276 IsEmpty]: Start isEmpty. Operand 25159 states and 38912 transitions. [2022-11-21 14:02:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-21 14:02:32,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:02:32,315 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-21 14:02:32,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 14:02:32,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 14:02:32,535 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 14:02:32,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:32,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1047171524, now seen corresponding path program 1 times [2022-11-21 14:02:32,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:32,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535141060] [2022-11-21 14:02:32,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:32,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:32,747 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 14:02:32,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509940186] [2022-11-21 14:02:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:32,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 14:02:32,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:02:32,749 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 14:02:32,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 14:02:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:34,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 5999 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 14:02:34,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 14:02:35,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-21 14:02:35,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 14:02:35,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:35,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535141060] [2022-11-21 14:02:35,449 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 14:02:35,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509940186] [2022-11-21 14:02:35,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509940186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:35,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:35,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 14:02:35,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926142749] [2022-11-21 14:02:35,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:35,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 14:02:35,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:35,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 14:02:35,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 14:02:35,451 INFO L87 Difference]: Start difference. First operand 25159 states and 38912 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-21 14:02:38,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 14:02:38,314 INFO L93 Difference]: Finished difference Result 75541 states and 116884 transitions. [2022-11-21 14:02:38,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 14:02:38,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 327 [2022-11-21 14:02:38,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 14:02:38,892 INFO L225 Difference]: With dead ends: 75541 [2022-11-21 14:02:38,893 INFO L226 Difference]: Without dead ends: 50422 [2022-11-21 14:02:39,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 14:02:39,070 INFO L413 NwaCegarLoop]: 6804 mSDtfsCounter, 5263 mSDsluCounter, 18858 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5267 SdHoareTripleChecker+Valid, 25662 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 14:02:39,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5267 Valid, 25662 Invalid, 41 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 14:02:39,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50422 states. [2022-11-21 14:02:43,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50422 to 50307. [2022-11-21 14:02:43,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50307 states, 27055 states have (on average 1.299242284235816) internal successors, (35151), 28043 states have internal predecessors, (35151), 21263 states have call successors, (21263), 1973 states have call predecessors, (21263), 1988 states have return successors, (21446), 20786 states have call predecessors, (21446), 21262 states have call successors, (21446) [2022-11-21 14:02:44,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50307 states to 50307 states and 77860 transitions. [2022-11-21 14:02:44,868 INFO L78 Accepts]: Start accepts. Automaton has 50307 states and 77860 transitions. Word has length 327 [2022-11-21 14:02:44,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 14:02:44,869 INFO L495 AbstractCegarLoop]: Abstraction has 50307 states and 77860 transitions. [2022-11-21 14:02:44,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-21 14:02:44,869 INFO L276 IsEmpty]: Start isEmpty. Operand 50307 states and 77860 transitions. [2022-11-21 14:02:44,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-21 14:02:44,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:02:44,887 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-21 14:02:44,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 14:02:45,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 14:02:45,104 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 14:02:45,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:45,104 INFO L85 PathProgramCache]: Analyzing trace with hash 962672133, now seen corresponding path program 1 times [2022-11-21 14:02:45,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:45,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618383642] [2022-11-21 14:02:45,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:45,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:45,317 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 14:02:45,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1037720307] [2022-11-21 14:02:45,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:45,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 14:02:45,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:02:45,320 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 14:02:45,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 14:02:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:47,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 6001 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 14:02:47,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 14:02:48,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-21 14:02:48,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 14:02:48,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:48,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618383642] [2022-11-21 14:02:48,105 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 14:02:48,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037720307] [2022-11-21 14:02:48,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037720307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:48,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:48,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 14:02:48,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546426323] [2022-11-21 14:02:48,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:48,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 14:02:48,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:48,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 14:02:48,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 14:02:48,108 INFO L87 Difference]: Start difference. First operand 50307 states and 77860 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-21 14:02:53,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 14:02:53,558 INFO L93 Difference]: Finished difference Result 151153 states and 234048 transitions. [2022-11-21 14:02:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 14:02:53,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 328 [2022-11-21 14:02:53,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 14:02:54,353 INFO L225 Difference]: With dead ends: 151153 [2022-11-21 14:02:54,353 INFO L226 Difference]: Without dead ends: 100886 [2022-11-21 14:02:54,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 14:02:54,922 INFO L413 NwaCegarLoop]: 6760 mSDtfsCounter, 5262 mSDsluCounter, 18770 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5266 SdHoareTripleChecker+Valid, 25530 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 14:02:54,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5266 Valid, 25530 Invalid, 41 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 14:02:55,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100886 states. [2022-11-21 14:03:02,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100886 to 100635. [2022-11-21 14:03:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100635 states, 54151 states have (on average 1.299311185389005) internal successors, (70359), 56119 states have internal predecessors, (70359), 42499 states have call successors, (42499), 3953 states have call predecessors, (42499), 3984 states have return successors, (43042), 41554 states have call predecessors, (43042), 42498 states have call successors, (43042) [2022-11-21 14:03:04,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100635 states to 100635 states and 155900 transitions. [2022-11-21 14:03:04,195 INFO L78 Accepts]: Start accepts. Automaton has 100635 states and 155900 transitions. Word has length 328 [2022-11-21 14:03:04,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 14:03:04,196 INFO L495 AbstractCegarLoop]: Abstraction has 100635 states and 155900 transitions. [2022-11-21 14:03:04,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-21 14:03:04,196 INFO L276 IsEmpty]: Start isEmpty. Operand 100635 states and 155900 transitions. [2022-11-21 14:03:04,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-21 14:03:04,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:03:04,214 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-21 14:03:04,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 14:03:04,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-21 14:03:04,429 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 14:03:04,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:03:04,429 INFO L85 PathProgramCache]: Analyzing trace with hash 829206338, now seen corresponding path program 1 times [2022-11-21 14:03:04,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:03:04,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677118516] [2022-11-21 14:03:04,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:03:04,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:03:04,625 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 14:03:04,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586936416] [2022-11-21 14:03:04,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:03:04,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 14:03:04,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:03:04,627 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 14:03:04,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fb066d-6355-43ae-835f-c6109a0cf995/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 14:03:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:03:06,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 5997 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 14:03:06,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 14:03:07,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-21 14:03:07,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 14:03:07,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:03:07,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677118516] [2022-11-21 14:03:07,421 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 14:03:07,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586936416] [2022-11-21 14:03:07,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586936416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:03:07,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:03:07,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 14:03:07,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769790916] [2022-11-21 14:03:07,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:03:07,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 14:03:07,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:03:07,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 14:03:07,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 14:03:07,423 INFO L87 Difference]: Start difference. First operand 100635 states and 155900 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)