./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--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 039eab12e50993f4fa37adc6de2fecb3561458fa83d70d097739d1ded7d4af34 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:42:34,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:42:34,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:42:34,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:42:34,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:42:34,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:42:34,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:42:34,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:42:34,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:42:34,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:42:34,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:42:34,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:42:34,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:42:34,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:42:34,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:42:34,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:42:34,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:42:34,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:42:34,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:42:34,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:42:34,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:42:34,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:42:34,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:42:34,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:42:34,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:42:34,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:42:34,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:42:34,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:42:34,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:42:34,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:42:34,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:42:34,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:42:34,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:42:34,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:42:34,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:42:34,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:42:34,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:42:34,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:42:34,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:42:34,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:42:34,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:42:34,805 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:42:34,831 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:42:34,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:42:34,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:42:34,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:42:34,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:42:34,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:42:34,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:42:34,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:42:34,834 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:42:34,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:42:34,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:42:34,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:42:34,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:42:34,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:42:34,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:42:34,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:42:34,836 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:42:34,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:42:34,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:42:34,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:42:34,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:42:34,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:42:34,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:42:34,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:42:34,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:42:34,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:42:34,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:42:34,839 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:42:34,839 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:42:34,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:42:34,839 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_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 039eab12e50993f4fa37adc6de2fecb3561458fa83d70d097739d1ded7d4af34 [2022-11-18 18:42:35,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:42:35,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:42:35,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:42:35,171 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:42:35,172 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:42:35,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-11-18 18:42:35,268 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/data/a0b1604d2/64d40e0224724dc5b536c45d3c9ab9d7/FLAGaeb0a2b51 [2022-11-18 18:42:36,579 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:42:36,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-11-18 18:42:36,663 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/data/a0b1604d2/64d40e0224724dc5b536c45d3c9ab9d7/FLAGaeb0a2b51 [2022-11-18 18:42:36,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/data/a0b1604d2/64d40e0224724dc5b536c45d3c9ab9d7 [2022-11-18 18:42:36,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:42:36,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:42:36,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:42:36,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:42:36,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:42:36,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:42:36" (1/1) ... [2022-11-18 18:42:36,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@402a8a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:36, skipping insertion in model container [2022-11-18 18:42:36,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:42:36" (1/1) ... [2022-11-18 18:42:36,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:42:36,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:42:42,309 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[485718,485731] [2022-11-18 18:42:42,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:42:42,597 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:42:43,335 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[485718,485731] [2022-11-18 18:42:43,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:42:43,636 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:42:43,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43 WrapperNode [2022-11-18 18:42:43,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:42:43,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:42:43,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:42:43,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:42:43,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (1/1) ... [2022-11-18 18:42:43,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (1/1) ... [2022-11-18 18:42:44,321 INFO L138 Inliner]: procedures = 526, calls = 6389, calls flagged for inlining = 183, calls inlined = 161, statements flattened = 7847 [2022-11-18 18:42:44,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:42:44,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:42:44,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:42:44,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:42:44,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (1/1) ... [2022-11-18 18:42:44,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (1/1) ... [2022-11-18 18:42:44,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (1/1) ... [2022-11-18 18:42:44,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (1/1) ... [2022-11-18 18:42:44,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (1/1) ... [2022-11-18 18:42:44,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (1/1) ... [2022-11-18 18:42:44,772 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (1/1) ... [2022-11-18 18:42:44,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (1/1) ... [2022-11-18 18:42:44,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:42:44,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:42:44,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:42:44,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:42:44,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (1/1) ... [2022-11-18 18:42:44,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:42:44,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:44,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:44,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:42:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-11-18 18:42:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-11-18 18:42:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-11-18 18:42:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-11-18 18:42:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2022-11-18 18:42:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2022-11-18 18:42:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-18 18:42:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-18 18:42:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-18 18:42:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 18:42:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 18:42:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-11-18 18:42:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-11-18 18:42:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-18 18:42:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-18 18:42:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-18 18:42:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-18 18:42:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 18:42:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 18:42:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-11-18 18:42:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-11-18 18:42:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-18 18:42:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-18 18:42:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-18 18:42:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-18 18:42:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-18 18:42:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-18 18:42:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-11-18 18:42:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-11-18 18:42:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-11-18 18:42:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-11-18 18:42:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-11-18 18:42:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-11-18 18:42:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-18 18:42:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-18 18:42:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-18 18:42:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-18 18:42:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-18 18:42:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-18 18:42:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-11-18 18:42:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-11-18 18:42:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 18:42:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 18:42:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-18 18:42:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-18 18:42:44,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:42:44,958 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-18 18:42:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-18 18:42:44,959 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 18:42:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 18:42:44,959 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-18 18:42:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-18 18:42:44,960 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-11-18 18:42:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-11-18 18:42:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 18:42:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 18:42:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 18:42:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 18:42:44,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 18:42:44,963 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-11-18 18:42:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-11-18 18:42:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 18:42:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 18:42:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-18 18:42:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-18 18:42:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 18:42:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:42:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 18:42:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 18:42:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 18:42:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 18:42:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-18 18:42:44,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-18 18:42:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-11-18 18:42:44,968 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-11-18 18:42:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-11-18 18:42:44,969 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-11-18 18:42:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-18 18:42:44,969 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-18 18:42:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-18 18:42:44,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-18 18:42:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:42:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-18 18:42:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:42:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 18:42:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 18:42:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:42:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 18:42:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-18 18:42:44,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-18 18:42:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-18 18:42:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-18 18:42:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-18 18:42:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-18 18:42:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-18 18:42:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-18 18:42:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-18 18:42:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-18 18:42:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-18 18:42:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-18 18:42:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-11-18 18:42:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-11-18 18:42:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-18 18:42:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-18 18:42:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-18 18:42:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-18 18:42:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:42:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:42:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-18 18:42:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-18 18:42:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-18 18:42:45,088 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-18 18:42:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-11-18 18:42:45,088 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-11-18 18:42:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 18:42:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:42:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 18:42:45,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 18:42:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-18 18:42:45,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-18 18:42:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-18 18:42:45,089 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-18 18:42:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-18 18:42:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-18 18:42:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-18 18:42:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-18 18:42:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-11-18 18:42:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-11-18 18:42:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-18 18:42:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-18 18:42:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 18:42:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 18:42:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 18:42:45,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 18:42:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-18 18:42:45,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-18 18:42:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:42:45,091 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:42:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 18:42:45,091 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 18:42:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-18 18:42:45,092 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-18 18:42:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-18 18:42:45,092 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-18 18:42:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-18 18:42:45,092 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-18 18:42:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-18 18:42:45,092 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-18 18:42:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:42:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-18 18:42:45,092 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-18 18:42:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-11-18 18:42:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-11-18 18:42:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:42:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-18 18:42:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-18 18:42:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-18 18:42:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-18 18:42:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-11-18 18:42:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-11-18 18:42:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:42:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-18 18:42:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-18 18:42:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-18 18:42:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-18 18:42:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-18 18:42:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-18 18:42:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-18 18:42:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-18 18:42:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-18 18:42:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-18 18:42:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 18:42:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 18:42:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-11-18 18:42:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-11-18 18:42:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-11-18 18:42:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-11-18 18:42:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-18 18:42:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-18 18:42:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-18 18:42:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-18 18:42:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-18 18:42:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-18 18:42:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-11-18 18:42:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-11-18 18:42:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-18 18:42:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-18 18:42:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single___1 [2022-11-18 18:42:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single___1 [2022-11-18 18:42:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 18:42:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 18:42:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-11-18 18:42:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-11-18 18:42:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-11-18 18:42:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-11-18 18:42:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 18:42:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 18:42:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-11-18 18:42:45,113 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-11-18 18:42:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:42:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-18 18:42:45,113 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-18 18:42:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-18 18:42:45,114 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-18 18:42:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 18:42:45,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 18:42:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-11-18 18:42:45,114 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-11-18 18:42:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-11-18 18:42:45,115 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-11-18 18:42:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-18 18:42:45,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-18 18:42:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-18 18:42:45,116 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-18 18:42:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-18 18:42:45,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-18 18:42:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-11-18 18:42:45,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-11-18 18:42:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-18 18:42:45,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-18 18:42:45,117 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-18 18:42:45,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-18 18:42:45,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2022-11-18 18:42:45,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2022-11-18 18:42:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-18 18:42:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-18 18:42:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-18 18:42:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-18 18:42:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-11-18 18:42:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-11-18 18:42:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single___0 [2022-11-18 18:42:45,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single___0 [2022-11-18 18:42:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-18 18:42:45,119 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-18 18:42:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-18 18:42:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-18 18:42:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:42:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-18 18:42:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-18 18:42:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-11-18 18:42:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-11-18 18:42:46,321 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:42:46,327 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:42:46,877 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 18:42:56,375 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:42:56,397 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:42:56,398 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 18:42:56,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:42:56 BoogieIcfgContainer [2022-11-18 18:42:56,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:42:56,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:42:56,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:42:56,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:42:56,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:42:36" (1/3) ... [2022-11-18 18:42:56,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfa4ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:42:56, skipping insertion in model container [2022-11-18 18:42:56,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:43" (2/3) ... [2022-11-18 18:42:56,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfa4ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:42:56, skipping insertion in model container [2022-11-18 18:42:56,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:42:56" (3/3) ... [2022-11-18 18:42:56,414 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-11-18 18:42:56,437 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:42:56,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:42:56,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:42:56,555 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;@548b4ee1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:42:56,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:42:56,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 1936 states, 1365 states have (on average 1.3362637362637362) internal successors, (1824), 1395 states have internal predecessors, (1824), 459 states have call successors, (459), 111 states have call predecessors, (459), 110 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) [2022-11-18 18:42:56,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-18 18:42:56,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:56,615 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:56,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:56,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:56,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1826650526, now seen corresponding path program 1 times [2022-11-18 18:42:56,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:56,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477207477] [2022-11-18 18:42:56,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:56,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:42:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:42:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:42:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:42:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:42:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 18:42:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:42:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:42:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 18:42:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 18:42:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 18:42:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:42:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,762 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 18:42:58,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:58,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477207477] [2022-11-18 18:42:58,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477207477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:58,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:58,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:42:58,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668287030] [2022-11-18 18:42:58,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:58,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:42:58,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:58,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:42:58,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:42:58,817 INFO L87 Difference]: Start difference. First operand has 1936 states, 1365 states have (on average 1.3362637362637362) internal successors, (1824), 1395 states have internal predecessors, (1824), 459 states have call successors, (459), 111 states have call predecessors, (459), 110 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 18:43:09,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:09,733 INFO L93 Difference]: Finished difference Result 4162 states and 6089 transitions. [2022-11-18 18:43:09,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:43:09,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2022-11-18 18:43:09,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:09,779 INFO L225 Difference]: With dead ends: 4162 [2022-11-18 18:43:09,779 INFO L226 Difference]: Without dead ends: 2178 [2022-11-18 18:43:09,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:43:09,807 INFO L413 NwaCegarLoop]: 1780 mSDtfsCounter, 2269 mSDsluCounter, 2887 mSDsCounter, 0 mSdLazyCounter, 3123 mSolverCounterSat, 1842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 4667 SdHoareTripleChecker+Invalid, 4965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1842 IncrementalHoareTripleChecker+Valid, 3123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:09,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 4667 Invalid, 4965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1842 Valid, 3123 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2022-11-18 18:43:09,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2022-11-18 18:43:10,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 1888. [2022-11-18 18:43:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1888 states, 1327 states have (on average 1.3112283345892992) internal successors, (1740), 1347 states have internal predecessors, (1740), 451 states have call successors, (451), 110 states have call predecessors, (451), 109 states have return successors, (450), 447 states have call predecessors, (450), 450 states have call successors, (450) [2022-11-18 18:43:10,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1888 states to 1888 states and 2641 transitions. [2022-11-18 18:43:10,139 INFO L78 Accepts]: Start accepts. Automaton has 1888 states and 2641 transitions. Word has length 121 [2022-11-18 18:43:10,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:10,140 INFO L495 AbstractCegarLoop]: Abstraction has 1888 states and 2641 transitions. [2022-11-18 18:43:10,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 18:43:10,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1888 states and 2641 transitions. [2022-11-18 18:43:10,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-18 18:43:10,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:10,154 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:10,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:43:10,155 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:10,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:10,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1538546916, now seen corresponding path program 1 times [2022-11-18 18:43:10,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:10,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634575070] [2022-11-18 18:43:10,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:10,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:43:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:43:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:43:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:43:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:43:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 18:43:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:43:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:43:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 18:43:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 18:43:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 18:43:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:43:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:11,562 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 18:43:11,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:43:11,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634575070] [2022-11-18 18:43:11,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634575070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:11,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:11,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:43:11,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492819742] [2022-11-18 18:43:11,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:11,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:43:11,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:43:11,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:43:11,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:43:11,573 INFO L87 Difference]: Start difference. First operand 1888 states and 2641 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 18:43:26,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:43:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:29,373 INFO L93 Difference]: Finished difference Result 5826 states and 8318 transitions. [2022-11-18 18:43:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:43:29,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2022-11-18 18:43:29,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:29,404 INFO L225 Difference]: With dead ends: 5826 [2022-11-18 18:43:29,404 INFO L226 Difference]: Without dead ends: 3948 [2022-11-18 18:43:29,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:43:29,416 INFO L413 NwaCegarLoop]: 2041 mSDtfsCounter, 5539 mSDsluCounter, 4330 mSDsCounter, 0 mSdLazyCounter, 5649 mSolverCounterSat, 3709 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5892 SdHoareTripleChecker+Valid, 6371 SdHoareTripleChecker+Invalid, 9358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3709 IncrementalHoareTripleChecker+Valid, 5649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:29,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5892 Valid, 6371 Invalid, 9358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3709 Valid, 5649 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2022-11-18 18:43:29,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3948 states. [2022-11-18 18:43:29,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3948 to 3407. [2022-11-18 18:43:29,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3407 states, 2393 states have (on average 1.3071458420392812) internal successors, (3128), 2433 states have internal predecessors, (3128), 807 states have call successors, (807), 208 states have call predecessors, (807), 206 states have return successors, (806), 795 states have call predecessors, (806), 806 states have call successors, (806) [2022-11-18 18:43:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3407 states to 3407 states and 4741 transitions. [2022-11-18 18:43:29,675 INFO L78 Accepts]: Start accepts. Automaton has 3407 states and 4741 transitions. Word has length 121 [2022-11-18 18:43:29,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:29,678 INFO L495 AbstractCegarLoop]: Abstraction has 3407 states and 4741 transitions. [2022-11-18 18:43:29,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 18:43:29,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3407 states and 4741 transitions. [2022-11-18 18:43:29,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-18 18:43:29,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:29,695 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:29,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:43:29,697 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:29,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:29,697 INFO L85 PathProgramCache]: Analyzing trace with hash -554083135, now seen corresponding path program 1 times [2022-11-18 18:43:29,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:29,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289091602] [2022-11-18 18:43:29,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:29,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:43:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:43:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:43:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 18:43:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 18:43:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-18 18:43:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:43:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:43:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 18:43:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 18:43:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 18:43:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:43:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 18:43:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:43:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 18:43:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 18:43:31,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:43:31,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289091602] [2022-11-18 18:43:31,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289091602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:31,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:31,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:43:31,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37816365] [2022-11-18 18:43:31,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:31,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:43:31,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:43:31,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:43:31,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:43:31,790 INFO L87 Difference]: Start difference. First operand 3407 states and 4741 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:43:56,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:56,120 INFO L93 Difference]: Finished difference Result 11212 states and 16027 transitions. [2022-11-18 18:43:56,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 18:43:56,121 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2022-11-18 18:43:56,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:56,182 INFO L225 Difference]: With dead ends: 11212 [2022-11-18 18:43:56,183 INFO L226 Difference]: Without dead ends: 7820 [2022-11-18 18:43:56,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2022-11-18 18:43:56,204 INFO L413 NwaCegarLoop]: 2460 mSDtfsCounter, 5812 mSDsluCounter, 10058 mSDsCounter, 0 mSdLazyCounter, 12077 mSolverCounterSat, 3712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6236 SdHoareTripleChecker+Valid, 12518 SdHoareTripleChecker+Invalid, 15789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3712 IncrementalHoareTripleChecker+Valid, 12077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:56,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6236 Valid, 12518 Invalid, 15789 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3712 Valid, 12077 Invalid, 0 Unknown, 0 Unchecked, 23.1s Time] [2022-11-18 18:43:56,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7820 states. [2022-11-18 18:43:56,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7820 to 6790. [2022-11-18 18:43:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6790 states, 4766 states have (on average 1.3065463701216953) internal successors, (6227), 4854 states have internal predecessors, (6227), 1610 states have call successors, (1610), 416 states have call predecessors, (1610), 413 states have return successors, (1617), 1579 states have call predecessors, (1617), 1609 states have call successors, (1617) [2022-11-18 18:43:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6790 states to 6790 states and 9454 transitions. [2022-11-18 18:43:56,781 INFO L78 Accepts]: Start accepts. Automaton has 6790 states and 9454 transitions. Word has length 155 [2022-11-18 18:43:56,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:56,783 INFO L495 AbstractCegarLoop]: Abstraction has 6790 states and 9454 transitions. [2022-11-18 18:43:56,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:43:56,785 INFO L276 IsEmpty]: Start isEmpty. Operand 6790 states and 9454 transitions. [2022-11-18 18:43:56,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-18 18:43:56,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:56,801 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:56,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:43:56,801 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:56,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:56,802 INFO L85 PathProgramCache]: Analyzing trace with hash -427607344, now seen corresponding path program 1 times [2022-11-18 18:43:56,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:56,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131922764] [2022-11-18 18:43:56,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:56,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:43:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:43:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:43:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:43:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 18:43:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 18:43:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:43:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:43:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 18:43:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 18:43:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 18:43:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:43:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-18 18:43:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 18:43:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:43:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:58,403 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 18:43:58,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:43:58,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131922764] [2022-11-18 18:43:58,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131922764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:58,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:58,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:43:58,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939467101] [2022-11-18 18:43:58,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:58,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:43:58,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:43:58,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:43:58,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:43:58,408 INFO L87 Difference]: Start difference. First operand 6790 states and 9454 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:44:15,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:15,224 INFO L93 Difference]: Finished difference Result 22395 states and 32018 transitions. [2022-11-18 18:44:15,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 18:44:15,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 158 [2022-11-18 18:44:15,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:15,332 INFO L225 Difference]: With dead ends: 22395 [2022-11-18 18:44:15,332 INFO L226 Difference]: Without dead ends: 15620 [2022-11-18 18:44:15,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2022-11-18 18:44:15,370 INFO L413 NwaCegarLoop]: 2020 mSDtfsCounter, 7558 mSDsluCounter, 6340 mSDsCounter, 0 mSdLazyCounter, 8265 mSolverCounterSat, 5489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7988 SdHoareTripleChecker+Valid, 8360 SdHoareTripleChecker+Invalid, 13754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5489 IncrementalHoareTripleChecker+Valid, 8265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:15,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7988 Valid, 8360 Invalid, 13754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5489 Valid, 8265 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2022-11-18 18:44:15,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15620 states. [2022-11-18 18:44:16,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15620 to 13570. [2022-11-18 18:44:16,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13570 states, 9528 states have (on average 1.3062552476910159) internal successors, (12446), 9702 states have internal predecessors, (12446), 3214 states have call successors, (3214), 832 states have call predecessors, (3214), 827 states have return successors, (3245), 3155 states have call predecessors, (3245), 3213 states have call successors, (3245) [2022-11-18 18:44:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13570 states to 13570 states and 18905 transitions. [2022-11-18 18:44:16,513 INFO L78 Accepts]: Start accepts. Automaton has 13570 states and 18905 transitions. Word has length 158 [2022-11-18 18:44:16,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:16,514 INFO L495 AbstractCegarLoop]: Abstraction has 13570 states and 18905 transitions. [2022-11-18 18:44:16,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:44:16,516 INFO L276 IsEmpty]: Start isEmpty. Operand 13570 states and 18905 transitions. [2022-11-18 18:44:16,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-18 18:44:16,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:16,527 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:44:16,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:44:16,527 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:16,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:16,528 INFO L85 PathProgramCache]: Analyzing trace with hash 975743390, now seen corresponding path program 1 times [2022-11-18 18:44:16,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:16,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774193217] [2022-11-18 18:44:16,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:16,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:44:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:44:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:44:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 18:44:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:44:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:44:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:44:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 18:44:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:44:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:17,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 18:44:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:18,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:44:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:18,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:18,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:44:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:18,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:44:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:18,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 18:44:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:18,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-18 18:44:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 18:44:18,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:18,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774193217] [2022-11-18 18:44:18,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774193217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:18,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:18,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:44:18,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934867017] [2022-11-18 18:44:18,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:18,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:44:18,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:18,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:44:18,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:44:18,117 INFO L87 Difference]: Start difference. First operand 13570 states and 18905 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:44:40,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:40,120 INFO L93 Difference]: Finished difference Result 44783 states and 64031 transitions. [2022-11-18 18:44:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 18:44:40,126 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 157 [2022-11-18 18:44:40,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:40,318 INFO L225 Difference]: With dead ends: 44783 [2022-11-18 18:44:40,319 INFO L226 Difference]: Without dead ends: 31228 [2022-11-18 18:44:40,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2022-11-18 18:44:40,395 INFO L413 NwaCegarLoop]: 2016 mSDtfsCounter, 6436 mSDsluCounter, 8116 mSDsCounter, 0 mSdLazyCounter, 10763 mSolverCounterSat, 4248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6869 SdHoareTripleChecker+Valid, 10132 SdHoareTripleChecker+Invalid, 15011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4248 IncrementalHoareTripleChecker+Valid, 10763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:40,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6869 Valid, 10132 Invalid, 15011 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4248 Valid, 10763 Invalid, 0 Unknown, 0 Unchecked, 19.8s Time] [2022-11-18 18:44:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31228 states. [2022-11-18 18:44:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31228 to 27134. [2022-11-18 18:44:42,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27134 states, 19056 states have (on average 1.3057304785894206) internal successors, (24882), 19400 states have internal predecessors, (24882), 6420 states have call successors, (6420), 1666 states have call predecessors, (6420), 1657 states have return successors, (6515), 6307 states have call predecessors, (6515), 6419 states have call successors, (6515) [2022-11-18 18:44:42,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27134 states to 27134 states and 37817 transitions. [2022-11-18 18:44:42,767 INFO L78 Accepts]: Start accepts. Automaton has 27134 states and 37817 transitions. Word has length 157 [2022-11-18 18:44:42,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:42,768 INFO L495 AbstractCegarLoop]: Abstraction has 27134 states and 37817 transitions. [2022-11-18 18:44:42,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:44:42,769 INFO L276 IsEmpty]: Start isEmpty. Operand 27134 states and 37817 transitions. [2022-11-18 18:44:42,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-18 18:44:42,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:42,783 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:44:42,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:44:42,783 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:42,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:42,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1186408749, now seen corresponding path program 1 times [2022-11-18 18:44:42,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:42,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650226984] [2022-11-18 18:44:42,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:42,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:44:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:44:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:44:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 18:44:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:44:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:44:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:44:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 18:44:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 18:44:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 18:44:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 18:44:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:44:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-18 18:44:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-18 18:44:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 18:44:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:44,955 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 18:44:44,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:44,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650226984] [2022-11-18 18:44:44,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650226984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:44,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:44,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:44:44,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278376901] [2022-11-18 18:44:44,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:44,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:44:44,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:44,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:44:44,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:44:44,959 INFO L87 Difference]: Start difference. First operand 27134 states and 37817 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:45:04,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:04,245 INFO L93 Difference]: Finished difference Result 88747 states and 126868 transitions. [2022-11-18 18:45:04,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 18:45:04,246 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 156 [2022-11-18 18:45:04,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:05,075 INFO L225 Difference]: With dead ends: 88747 [2022-11-18 18:45:05,076 INFO L226 Difference]: Without dead ends: 61628 [2022-11-18 18:45:05,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2022-11-18 18:45:05,196 INFO L413 NwaCegarLoop]: 2018 mSDtfsCounter, 7529 mSDsluCounter, 6340 mSDsCounter, 0 mSdLazyCounter, 8289 mSolverCounterSat, 5493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7954 SdHoareTripleChecker+Valid, 8358 SdHoareTripleChecker+Invalid, 13782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5493 IncrementalHoareTripleChecker+Valid, 8289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:05,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7954 Valid, 8358 Invalid, 13782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5493 Valid, 8289 Invalid, 0 Unknown, 0 Unchecked, 15.6s Time] [2022-11-18 18:45:05,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61628 states. [2022-11-18 18:45:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61628 to 53470. [2022-11-18 18:45:08,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53470 states, 37553 states have (on average 1.3051686949111923) internal successors, (49013), 38221 states have internal predecessors, (49013), 12620 states have call successors, (12620), 3313 states have call predecessors, (12620), 3296 states have return successors, (12875), 12403 states have call predecessors, (12875), 12619 states have call successors, (12875) [2022-11-18 18:45:09,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53470 states to 53470 states and 74508 transitions. [2022-11-18 18:45:09,272 INFO L78 Accepts]: Start accepts. Automaton has 53470 states and 74508 transitions. Word has length 156 [2022-11-18 18:45:09,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:09,275 INFO L495 AbstractCegarLoop]: Abstraction has 53470 states and 74508 transitions. [2022-11-18 18:45:09,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:45:09,276 INFO L276 IsEmpty]: Start isEmpty. Operand 53470 states and 74508 transitions. [2022-11-18 18:45:09,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-18 18:45:09,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:09,287 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:09,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:45:09,288 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:45:09,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:09,289 INFO L85 PathProgramCache]: Analyzing trace with hash -9827657, now seen corresponding path program 1 times [2022-11-18 18:45:09,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:09,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782775486] [2022-11-18 18:45:09,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:09,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:45:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:45:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:45:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:45:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:45:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 18:45:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 18:45:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 18:45:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 18:45:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 18:45:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 18:45:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 18:45:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:45:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 18:45:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 18:45:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:45:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:45:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 18:45:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-18 18:45:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-18 18:45:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-18 18:45:12,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:12,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782775486] [2022-11-18 18:45:12,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782775486] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:12,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109918120] [2022-11-18 18:45:12,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:12,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:12,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:12,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:12,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:45:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:15,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 8463 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:45:15,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 18:45:15,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:45:15,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109918120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:15,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:45:15,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-11-18 18:45:15,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94835410] [2022-11-18 18:45:15,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:15,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:45:15,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:15,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:45:15,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:45:15,420 INFO L87 Difference]: Start difference. First operand 53470 states and 74508 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-18 18:45:19,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:19,748 INFO L93 Difference]: Finished difference Result 133624 states and 186190 transitions. [2022-11-18 18:45:19,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 18:45:19,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 172 [2022-11-18 18:45:19,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:20,190 INFO L225 Difference]: With dead ends: 133624 [2022-11-18 18:45:20,190 INFO L226 Difference]: Without dead ends: 80169 [2022-11-18 18:45:20,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2022-11-18 18:45:20,691 INFO L413 NwaCegarLoop]: 4048 mSDtfsCounter, 2659 mSDsluCounter, 18809 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2663 SdHoareTripleChecker+Valid, 22857 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:20,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2663 Valid, 22857 Invalid, 83 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:45:20,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80169 states. [2022-11-18 18:45:25,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80169 to 79874. [2022-11-18 18:45:25,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79874 states, 56118 states have (on average 1.3057129619729855) internal successors, (73274), 57134 states have internal predecessors, (73274), 18812 states have call successors, (18812), 4952 states have call predecessors, (18812), 4943 states have return successors, (19267), 18483 states have call predecessors, (19267), 18811 states have call successors, (19267) [2022-11-18 18:45:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79874 states to 79874 states and 111353 transitions. [2022-11-18 18:45:26,035 INFO L78 Accepts]: Start accepts. Automaton has 79874 states and 111353 transitions. Word has length 172 [2022-11-18 18:45:26,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:26,036 INFO L495 AbstractCegarLoop]: Abstraction has 79874 states and 111353 transitions. [2022-11-18 18:45:26,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-18 18:45:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 79874 states and 111353 transitions. [2022-11-18 18:45:26,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-18 18:45:26,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:26,050 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:26,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:26,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:26,276 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:45:26,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:26,276 INFO L85 PathProgramCache]: Analyzing trace with hash 544419712, now seen corresponding path program 1 times [2022-11-18 18:45:26,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:26,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905695995] [2022-11-18 18:45:26,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:26,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:45:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:45:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:45:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:45:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:45:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 18:45:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 18:45:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 18:45:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 18:45:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 18:45:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 18:45:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 18:45:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:45:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 18:45:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:45:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:45:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:45:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 18:45:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 18:45:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-18 18:45:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 18:45:28,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:28,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905695995] [2022-11-18 18:45:28,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905695995] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:28,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747322988] [2022-11-18 18:45:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:28,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:28,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:28,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:28,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba41f97-5fad-40d3-bbd4-3dd30f8261f9/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:45:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:31,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 8465 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:45:31,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:31,718 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 18:45:31,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:45:31,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747322988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:31,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:45:31,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-18 18:45:31,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104970461] [2022-11-18 18:45:31,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:31,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:45:31,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:31,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:45:31,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:45:31,723 INFO L87 Difference]: Start difference. First operand 79874 states and 111353 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 5 states have internal predecessors, (116), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-18 18:45:37,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:37,377 INFO L93 Difference]: Finished difference Result 186538 states and 259972 transitions. [2022-11-18 18:45:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 18:45:37,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 5 states have internal predecessors, (116), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 173 [2022-11-18 18:45:37,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:38,319 INFO L225 Difference]: With dead ends: 186538 [2022-11-18 18:45:38,319 INFO L226 Difference]: Without dead ends: 106679 [2022-11-18 18:45:38,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2022-11-18 18:45:38,540 INFO L413 NwaCegarLoop]: 4621 mSDtfsCounter, 2659 mSDsluCounter, 21089 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2663 SdHoareTripleChecker+Valid, 25710 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:38,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2663 Valid, 25710 Invalid, 84 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:45:38,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106679 states.