./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 09:06:02,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:06:02,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:06:02,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:06:02,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:06:02,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:06:02,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:06:02,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:06:02,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:06:02,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:06:02,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:06:02,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:06:02,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:06:02,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:06:02,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:06:02,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:06:02,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:06:02,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:06:02,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:06:02,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:06:02,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:06:02,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:06:02,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:06:02,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:06:02,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:06:02,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:06:02,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:06:02,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:06:02,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:06:02,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:06:02,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:06:02,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:06:02,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:06:02,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:06:02,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:06:02,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:06:02,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:06:02,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:06:02,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:06:02,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:06:02,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:06:02,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 09:06:02,734 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:06:02,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:06:02,735 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:06:02,735 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:06:02,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:06:02,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:06:02,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:06:02,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:06:02,744 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:06:02,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:06:02,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:06:02,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:06:02,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:06:02,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:06:02,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:06:02,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:06:02,746 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:06:02,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:06:02,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:06:02,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:06:02,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:06:02,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:06:02,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:06:02,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:06:02,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:06:02,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:06:02,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:06:02,750 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:06:02,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:06:02,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:06:02,751 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_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2022-11-21 09:06:02,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:06:03,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:06:03,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:06:03,020 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:06:03,021 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:06:03,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-11-21 09:06:06,032 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:06:06,650 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:06:06,654 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-11-21 09:06:06,702 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/data/d65d9d3cf/d08c95bb67bb4c54a9070fa467944227/FLAG6b3ca2a11 [2022-11-21 09:06:06,719 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/data/d65d9d3cf/d08c95bb67bb4c54a9070fa467944227 [2022-11-21 09:06:06,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:06:06,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:06:06,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:06:06,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:06:06,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:06:06,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:06:06" (1/1) ... [2022-11-21 09:06:06,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bddbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:06, skipping insertion in model container [2022-11-21 09:06:06,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:06:06" (1/1) ... [2022-11-21 09:06:06,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:06:06,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:06:07,499 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-11-21 09:06:07,502 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2022-11-21 09:06:07,867 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2022-11-21 09:06:09,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:06:09,085 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:06:09,194 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-11-21 09:06:09,195 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2022-11-21 09:06:09,219 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2022-11-21 09:06:09,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:06:09,658 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:06:09,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09 WrapperNode [2022-11-21 09:06:09,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:06:09,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:06:09,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:06:09,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:06:09,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (1/1) ... [2022-11-21 09:06:09,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (1/1) ... [2022-11-21 09:06:09,926 INFO L138 Inliner]: procedures = 281, calls = 1595, calls flagged for inlining = 160, calls inlined = 157, statements flattened = 4367 [2022-11-21 09:06:09,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:06:09,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:06:09,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:06:09,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:06:09,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (1/1) ... [2022-11-21 09:06:09,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (1/1) ... [2022-11-21 09:06:09,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (1/1) ... [2022-11-21 09:06:09,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (1/1) ... [2022-11-21 09:06:10,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (1/1) ... [2022-11-21 09:06:10,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (1/1) ... [2022-11-21 09:06:10,120 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (1/1) ... [2022-11-21 09:06:10,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (1/1) ... [2022-11-21 09:06:10,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:06:10,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:06:10,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:06:10,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:06:10,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (1/1) ... [2022-11-21 09:06:10,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:06:10,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:06:10,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:06:10,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:06:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-11-21 09:06:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-11-21 09:06:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-21 09:06:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-21 09:06:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-21 09:06:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-21 09:06:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 09:06:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 09:06:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-21 09:06:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-21 09:06:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-21 09:06:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-21 09:06:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-21 09:06:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-21 09:06:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-21 09:06:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-21 09:06:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 09:06:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 09:06:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-11-21 09:06:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-11-21 09:06:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 09:06:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 09:06:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-21 09:06:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-21 09:06:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-21 09:06:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-21 09:06:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-21 09:06:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-21 09:06:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-21 09:06:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-21 09:06:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-11-21 09:06:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-11-21 09:06:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-21 09:06:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-21 09:06:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 09:06:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 09:06:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-21 09:06:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-21 09:06:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-21 09:06:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-21 09:06:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-21 09:06:10,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-21 09:06:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-21 09:06:10,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-21 09:06:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-11-21 09:06:10,275 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-11-21 09:06:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-21 09:06:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-21 09:06:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-21 09:06:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-21 09:06:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-21 09:06:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-21 09:06:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:06:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-21 09:06:10,277 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-21 09:06:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-21 09:06:10,277 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-21 09:06:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 09:06:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-21 09:06:10,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-21 09:06:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-21 09:06:10,278 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-21 09:06:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-21 09:06:10,278 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-21 09:06:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-21 09:06:10,279 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-21 09:06:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-21 09:06:10,279 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-21 09:06:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-21 09:06:10,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-21 09:06:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-21 09:06:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-11-21 09:06:10,280 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-11-21 09:06:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-11-21 09:06:10,280 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-11-21 09:06:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-21 09:06:10,280 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-21 09:06:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-11-21 09:06:10,281 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-11-21 09:06:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-11-21 09:06:10,281 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-11-21 09:06:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-21 09:06:10,281 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-21 09:06:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:06:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 09:06:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-21 09:06:10,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-21 09:06:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-21 09:06:10,282 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-21 09:06:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-21 09:06:10,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-21 09:06:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-11-21 09:06:10,283 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-11-21 09:06:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-21 09:06:10,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-21 09:06:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-21 09:06:10,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-21 09:06:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-11-21 09:06:10,284 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-11-21 09:06:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-21 09:06:10,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-21 09:06:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-21 09:06:10,285 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-21 09:06:10,285 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-21 09:06:10,285 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-21 09:06:10,285 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-11-21 09:06:10,285 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-11-21 09:06:10,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:06:10,286 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-11-21 09:06:10,286 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-11-21 09:06:10,286 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-21 09:06:10,286 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-21 09:06:10,286 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-21 09:06:10,286 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-21 09:06:10,287 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-21 09:06:10,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-21 09:06:10,287 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-21 09:06:10,287 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-21 09:06:10,287 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-21 09:06:10,287 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-21 09:06:10,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-21 09:06:10,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-21 09:06:10,288 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 09:06:10,288 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 09:06:10,288 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-21 09:06:10,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-21 09:06:10,289 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-21 09:06:10,289 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-21 09:06:10,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:06:10,289 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-21 09:06:10,289 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-21 09:06:10,289 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-11-21 09:06:10,290 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-11-21 09:06:10,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 09:06:10,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 09:06:10,290 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-11-21 09:06:10,290 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-11-21 09:06:10,290 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2022-11-21 09:06:10,290 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2022-11-21 09:06:10,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 09:06:10,291 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-11-21 09:06:10,291 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-11-21 09:06:10,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:06:10,291 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-11-21 09:06:10,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-11-21 09:06:10,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 09:06:10,292 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-21 09:06:10,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-21 09:06:10,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-21 09:06:10,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-21 09:06:10,292 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-11-21 09:06:10,292 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-11-21 09:06:10,293 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-21 09:06:10,293 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-21 09:06:10,293 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-11-21 09:06:10,293 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-11-21 09:06:10,293 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-21 09:06:10,293 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-21 09:06:10,294 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2022-11-21 09:06:10,294 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2022-11-21 09:06:10,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-21 09:06:10,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-21 09:06:10,294 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-21 09:06:10,294 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-21 09:06:10,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:06:10,295 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-21 09:06:10,295 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-21 09:06:10,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:06:10,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:06:11,364 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:06:11,369 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:06:11,777 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 09:06:15,169 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:06:15,198 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:06:15,199 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 09:06:15,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:06:15 BoogieIcfgContainer [2022-11-21 09:06:15,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:06:15,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:06:15,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:06:15,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:06:15,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:06:06" (1/3) ... [2022-11-21 09:06:15,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75be60ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:06:15, skipping insertion in model container [2022-11-21 09:06:15,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:09" (2/3) ... [2022-11-21 09:06:15,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75be60ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:06:15, skipping insertion in model container [2022-11-21 09:06:15,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:06:15" (3/3) ... [2022-11-21 09:06:15,218 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-11-21 09:06:15,237 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:06:15,238 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 09:06:15,346 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:06:15,354 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;@69989180, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:06:15,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 09:06:15,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 1674 states, 1158 states have (on average 1.3246977547495682) internal successors, (1534), 1185 states have internal predecessors, (1534), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) [2022-11-21 09:06:15,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-21 09:06:15,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:15,393 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:15,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:06:15,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:15,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2002307181, now seen corresponding path program 1 times [2022-11-21 09:06:15,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:15,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525691480] [2022-11-21 09:06:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:15,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:06:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:06:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:06:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:06:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:06:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:06:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 09:06:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:06:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 09:06:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 09:06:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,585 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 09:06:16,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:16,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525691480] [2022-11-21 09:06:16,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525691480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:16,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:16,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:06:16,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160342907] [2022-11-21 09:06:16,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:16,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:06:16,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:16,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:06:16,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:06:16,653 INFO L87 Difference]: Start difference. First operand has 1674 states, 1158 states have (on average 1.3246977547495682) internal successors, (1534), 1185 states have internal predecessors, (1534), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 09:06:27,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:27,576 INFO L93 Difference]: Finished difference Result 5285 states and 7730 transitions. [2022-11-21 09:06:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 09:06:27,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2022-11-21 09:06:27,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:27,619 INFO L225 Difference]: With dead ends: 5285 [2022-11-21 09:06:27,619 INFO L226 Difference]: Without dead ends: 3578 [2022-11-21 09:06:27,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-21 09:06:27,639 INFO L413 NwaCegarLoop]: 1690 mSDtfsCounter, 4379 mSDsluCounter, 5261 mSDsCounter, 0 mSdLazyCounter, 7595 mSolverCounterSat, 2775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4687 SdHoareTripleChecker+Valid, 6951 SdHoareTripleChecker+Invalid, 10370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2775 IncrementalHoareTripleChecker+Valid, 7595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:27,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4687 Valid, 6951 Invalid, 10370 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2775 Valid, 7595 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-11-21 09:06:27,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2022-11-21 09:06:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3285. [2022-11-21 09:06:28,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 2278 states have (on average 1.3134328358208955) internal successors, (2992), 2318 states have internal predecessors, (2992), 853 states have call successors, (853), 154 states have call predecessors, (853), 153 states have return successors, (852), 840 states have call predecessors, (852), 852 states have call successors, (852) [2022-11-21 09:06:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4697 transitions. [2022-11-21 09:06:28,100 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4697 transitions. Word has length 96 [2022-11-21 09:06:28,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:28,109 INFO L495 AbstractCegarLoop]: Abstraction has 3285 states and 4697 transitions. [2022-11-21 09:06:28,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 09:06:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4697 transitions. [2022-11-21 09:06:28,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-21 09:06:28,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:28,128 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:28,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:06:28,129 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:06:28,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:28,129 INFO L85 PathProgramCache]: Analyzing trace with hash -467530189, now seen corresponding path program 1 times [2022-11-21 09:06:28,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:28,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601504198] [2022-11-21 09:06:28,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:28,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:06:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:06:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:06:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:06:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:06:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:06:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 09:06:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-21 09:06:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 09:06:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 09:06:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 09:06:28,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:28,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601504198] [2022-11-21 09:06:28,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601504198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:28,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:28,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:06:28,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247922090] [2022-11-21 09:06:28,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:28,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:06:28,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:28,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:06:28,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:06:28,705 INFO L87 Difference]: Start difference. First operand 3285 states and 4697 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 09:06:38,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:38,824 INFO L93 Difference]: Finished difference Result 10401 states and 14985 transitions. [2022-11-21 09:06:38,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 09:06:38,825 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2022-11-21 09:06:38,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:38,869 INFO L225 Difference]: With dead ends: 10401 [2022-11-21 09:06:38,869 INFO L226 Difference]: Without dead ends: 7133 [2022-11-21 09:06:38,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-21 09:06:38,887 INFO L413 NwaCegarLoop]: 1641 mSDtfsCounter, 4368 mSDsluCounter, 5082 mSDsCounter, 0 mSdLazyCounter, 7431 mSolverCounterSat, 2760 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4680 SdHoareTripleChecker+Valid, 6723 SdHoareTripleChecker+Invalid, 10191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2760 IncrementalHoareTripleChecker+Valid, 7431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:38,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4680 Valid, 6723 Invalid, 10191 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2760 Valid, 7431 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-21 09:06:38,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7133 states. [2022-11-21 09:06:39,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7133 to 6552. [2022-11-21 09:06:39,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6552 states, 4546 states have (on average 1.3128024637043554) internal successors, (5968), 4625 states have internal predecessors, (5968), 1698 states have call successors, (1698), 308 states have call predecessors, (1698), 307 states have return successors, (1697), 1674 states have call predecessors, (1697), 1697 states have call successors, (1697) [2022-11-21 09:06:39,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 9363 transitions. [2022-11-21 09:06:39,281 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 9363 transitions. Word has length 97 [2022-11-21 09:06:39,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:39,284 INFO L495 AbstractCegarLoop]: Abstraction has 6552 states and 9363 transitions. [2022-11-21 09:06:39,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 09:06:39,284 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 9363 transitions. [2022-11-21 09:06:39,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-21 09:06:39,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:39,293 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:39,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:06:39,293 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:06:39,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:39,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1166828080, now seen corresponding path program 1 times [2022-11-21 09:06:39,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:39,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475824869] [2022-11-21 09:06:39,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:39,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:06:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:06:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:06:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:06:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:06:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:06:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 09:06:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 09:06:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 09:06:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 09:06:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 09:06:39,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:39,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475824869] [2022-11-21 09:06:39,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475824869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:39,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:39,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:06:39,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725867492] [2022-11-21 09:06:39,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:39,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:06:39,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:39,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:06:39,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:06:39,862 INFO L87 Difference]: Start difference. First operand 6552 states and 9363 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 09:06:49,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:49,409 INFO L93 Difference]: Finished difference Result 20785 states and 29913 transitions. [2022-11-21 09:06:49,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 09:06:49,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2022-11-21 09:06:49,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:49,489 INFO L225 Difference]: With dead ends: 20785 [2022-11-21 09:06:49,489 INFO L226 Difference]: Without dead ends: 14250 [2022-11-21 09:06:49,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-21 09:06:49,524 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 4370 mSDsluCounter, 5027 mSDsCounter, 0 mSdLazyCounter, 7454 mSolverCounterSat, 2791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4678 SdHoareTripleChecker+Valid, 6659 SdHoareTripleChecker+Invalid, 10245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2791 IncrementalHoareTripleChecker+Valid, 7454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:49,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4678 Valid, 6659 Invalid, 10245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2791 Valid, 7454 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-21 09:06:49,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14250 states. [2022-11-21 09:06:50,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14250 to 13091. [2022-11-21 09:06:50,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13091 states, 9087 states have (on average 1.3122042478265654) internal successors, (11924), 9243 states have internal predecessors, (11924), 3387 states have call successors, (3387), 617 states have call predecessors, (3387), 616 states have return successors, (3386), 3342 states have call predecessors, (3386), 3386 states have call successors, (3386) [2022-11-21 09:06:50,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 18697 transitions. [2022-11-21 09:06:50,438 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 18697 transitions. Word has length 98 [2022-11-21 09:06:50,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:50,441 INFO L495 AbstractCegarLoop]: Abstraction has 13091 states and 18697 transitions. [2022-11-21 09:06:50,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 09:06:50,442 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 18697 transitions. [2022-11-21 09:06:50,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-21 09:06:50,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:50,455 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:50,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:06:50,456 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:06:50,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:50,457 INFO L85 PathProgramCache]: Analyzing trace with hash -279318037, now seen corresponding path program 1 times [2022-11-21 09:06:50,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:50,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215850712] [2022-11-21 09:06:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:50,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:06:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:06:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:06:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:06:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:06:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:06:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 09:06:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 09:06:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 09:06:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-21 09:06:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 09:06:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:50,724 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-21 09:06:50,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:50,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215850712] [2022-11-21 09:06:50,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215850712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:50,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:50,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:06:50,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602185323] [2022-11-21 09:06:50,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:50,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:06:50,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:50,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:06:50,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:06:50,727 INFO L87 Difference]: Start difference. First operand 13091 states and 18697 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 09:06:58,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:58,060 INFO L93 Difference]: Finished difference Result 38396 states and 55010 transitions. [2022-11-21 09:06:58,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:06:58,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2022-11-21 09:06:58,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:58,196 INFO L225 Difference]: With dead ends: 38396 [2022-11-21 09:06:58,196 INFO L226 Difference]: Without dead ends: 25322 [2022-11-21 09:06:58,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:06:58,263 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 3787 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 3840 mSolverCounterSat, 2501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4022 SdHoareTripleChecker+Valid, 4172 SdHoareTripleChecker+Invalid, 6341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2501 IncrementalHoareTripleChecker+Valid, 3840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:58,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4022 Valid, 4172 Invalid, 6341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2501 Valid, 3840 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-21 09:06:58,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25322 states. [2022-11-21 09:06:59,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25322 to 23303. [2022-11-21 09:06:59,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23303 states, 16215 states have (on average 1.3076780758556892) internal successors, (21204), 16519 states have internal predecessors, (21204), 5935 states have call successors, (5935), 1161 states have call predecessors, (5935), 1152 states have return successors, (5934), 5830 states have call predecessors, (5934), 5934 states have call successors, (5934) [2022-11-21 09:07:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23303 states to 23303 states and 33073 transitions. [2022-11-21 09:07:00,024 INFO L78 Accepts]: Start accepts. Automaton has 23303 states and 33073 transitions. Word has length 111 [2022-11-21 09:07:00,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:07:00,026 INFO L495 AbstractCegarLoop]: Abstraction has 23303 states and 33073 transitions. [2022-11-21 09:07:00,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 09:07:00,027 INFO L276 IsEmpty]: Start isEmpty. Operand 23303 states and 33073 transitions. [2022-11-21 09:07:00,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-21 09:07:00,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:07:00,031 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:07:00,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:07:00,031 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:07:00,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1182232278, now seen corresponding path program 1 times [2022-11-21 09:07:00,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:00,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111365837] [2022-11-21 09:07:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:00,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:07:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:07:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:07:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:07:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:07:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:07:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 09:07:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 09:07:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:07:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 09:07:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 09:07:00,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:00,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111365837] [2022-11-21 09:07:00,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111365837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:00,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:00,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:07:00,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817462365] [2022-11-21 09:07:00,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:00,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:07:00,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:00,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:07:00,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:07:00,485 INFO L87 Difference]: Start difference. First operand 23303 states and 33073 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 09:07:11,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:07:11,324 INFO L93 Difference]: Finished difference Result 73716 states and 105369 transitions. [2022-11-21 09:07:11,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 09:07:11,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2022-11-21 09:07:11,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:07:11,630 INFO L225 Difference]: With dead ends: 73716 [2022-11-21 09:07:11,630 INFO L226 Difference]: Without dead ends: 50430 [2022-11-21 09:07:11,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-21 09:07:11,737 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 4375 mSDsluCounter, 5034 mSDsCounter, 0 mSdLazyCounter, 7439 mSolverCounterSat, 2791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4686 SdHoareTripleChecker+Valid, 6660 SdHoareTripleChecker+Invalid, 10230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2791 IncrementalHoareTripleChecker+Valid, 7439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:07:11,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4686 Valid, 6660 Invalid, 10230 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2791 Valid, 7439 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-11-21 09:07:11,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50430 states. [2022-11-21 09:07:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50430 to 46432. [2022-11-21 09:07:14,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46432 states, 32302 states have (on average 1.3068540647637916) internal successors, (42214), 32900 states have internal predecessors, (42214), 11823 states have call successors, (11823), 2323 states have call predecessors, (11823), 2306 states have return successors, (11822), 11622 states have call predecessors, (11822), 11822 states have call successors, (11822) [2022-11-21 09:07:14,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46432 states to 46432 states and 65859 transitions. [2022-11-21 09:07:14,589 INFO L78 Accepts]: Start accepts. Automaton has 46432 states and 65859 transitions. Word has length 99 [2022-11-21 09:07:14,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:07:14,589 INFO L495 AbstractCegarLoop]: Abstraction has 46432 states and 65859 transitions. [2022-11-21 09:07:14,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 09:07:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 46432 states and 65859 transitions. [2022-11-21 09:07:14,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-21 09:07:14,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:07:14,595 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-21 09:07:14,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:07:14,596 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:07:14,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:14,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1142413645, now seen corresponding path program 1 times [2022-11-21 09:07:14,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:14,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313430628] [2022-11-21 09:07:14,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:14,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:07:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:07:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:07:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:07:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:07:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:07:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:07:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 09:07:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 09:07:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 09:07:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 09:07:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-21 09:07:15,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:15,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313430628] [2022-11-21 09:07:15,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313430628] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:07:15,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059534056] [2022-11-21 09:07:15,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:15,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:07:15,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:07:15,163 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:07:15,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 09:07:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:16,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1979 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 09:07:16,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:07:16,187 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 09:07:16,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:07:16,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059534056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:16,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:07:16,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-11-21 09:07:16,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445762449] [2022-11-21 09:07:16,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:16,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:07:16,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:16,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:07:16,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-21 09:07:16,189 INFO L87 Difference]: Start difference. First operand 46432 states and 65859 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 09:07:19,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:07:19,608 INFO L93 Difference]: Finished difference Result 116326 states and 164953 transitions. [2022-11-21 09:07:19,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 09:07:19,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2022-11-21 09:07:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:07:20,022 INFO L225 Difference]: With dead ends: 116326 [2022-11-21 09:07:20,023 INFO L226 Difference]: Without dead ends: 69911 [2022-11-21 09:07:20,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2022-11-21 09:07:20,464 INFO L413 NwaCegarLoop]: 3045 mSDtfsCounter, 2384 mSDsluCounter, 14510 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2388 SdHoareTripleChecker+Valid, 17555 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:07:20,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2388 Valid, 17555 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:07:20,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69911 states. [2022-11-21 09:07:24,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69911 to 69616. [2022-11-21 09:07:24,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69616 states, 48444 states have (on average 1.3072207084468666) internal successors, (63327), 49360 states have internal predecessors, (63327), 17703 states have call successors, (17703), 3477 states have call predecessors, (17703), 3468 states have return successors, (17742), 17398 states have call predecessors, (17742), 17702 states have call successors, (17742) [2022-11-21 09:07:25,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69616 states to 69616 states and 98772 transitions. [2022-11-21 09:07:25,359 INFO L78 Accepts]: Start accepts. Automaton has 69616 states and 98772 transitions. Word has length 109 [2022-11-21 09:07:25,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:07:25,359 INFO L495 AbstractCegarLoop]: Abstraction has 69616 states and 98772 transitions. [2022-11-21 09:07:25,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 09:07:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 69616 states and 98772 transitions. [2022-11-21 09:07:25,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-21 09:07:25,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:07:25,366 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-21 09:07:25,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 09:07:25,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-21 09:07:25,583 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:07:25,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:25,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1215864846, now seen corresponding path program 1 times [2022-11-21 09:07:25,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:25,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675287709] [2022-11-21 09:07:25,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:25,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:07:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:07:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:07:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:07:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:07:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:07:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:07:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 09:07:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 09:07:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:07:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 09:07:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:26,174 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 09:07:26,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:26,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675287709] [2022-11-21 09:07:26,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675287709] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:07:26,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314901929] [2022-11-21 09:07:26,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:26,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:07:26,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:07:26,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:07:26,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 09:07:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:27,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 1981 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 09:07:27,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:07:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 09:07:27,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:07:27,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314901929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:27,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:07:27,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-11-21 09:07:27,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066379213] [2022-11-21 09:07:27,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:27,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:07:27,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:27,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:07:27,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-21 09:07:27,292 INFO L87 Difference]: Start difference. First operand 69616 states and 98772 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 09:07:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:07:31,502 INFO L93 Difference]: Finished difference Result 162800 states and 230871 transitions. [2022-11-21 09:07:31,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 09:07:31,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2022-11-21 09:07:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:07:32,333 INFO L225 Difference]: With dead ends: 162800 [2022-11-21 09:07:32,333 INFO L226 Difference]: Without dead ends: 93201 [2022-11-21 09:07:32,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-11-21 09:07:32,549 INFO L413 NwaCegarLoop]: 3140 mSDtfsCounter, 2384 mSDsluCounter, 14878 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2388 SdHoareTripleChecker+Valid, 18018 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:07:32,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2388 Valid, 18018 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:07:32,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93201 states. [2022-11-21 09:07:36,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93201 to 92864. [2022-11-21 09:07:36,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92864 states, 64626 states have (on average 1.3072138148732708) internal successors, (84480), 65892 states have internal predecessors, (84480), 23583 states have call successors, (23583), 4631 states have call predecessors, (23583), 4654 states have return successors, (23686), 23166 states have call predecessors, (23686), 23582 states have call successors, (23686) [2022-11-21 09:07:37,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92864 states to 92864 states and 131749 transitions. [2022-11-21 09:07:37,752 INFO L78 Accepts]: Start accepts. Automaton has 92864 states and 131749 transitions. Word has length 110 [2022-11-21 09:07:37,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:07:37,754 INFO L495 AbstractCegarLoop]: Abstraction has 92864 states and 131749 transitions. [2022-11-21 09:07:37,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 09:07:37,755 INFO L276 IsEmpty]: Start isEmpty. Operand 92864 states and 131749 transitions. [2022-11-21 09:07:37,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-21 09:07:37,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:07:37,767 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-21 09:07:37,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 09:07:37,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-21 09:07:37,977 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:07:37,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:37,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1278043046, now seen corresponding path program 1 times [2022-11-21 09:07:37,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:37,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811360428] [2022-11-21 09:07:37,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:37,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:07:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:07:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:07:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:07:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:07:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:07:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 09:07:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 09:07:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 09:07:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-21 09:07:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 09:07:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:38,683 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 09:07:38,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:38,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811360428] [2022-11-21 09:07:38,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811360428] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:07:38,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217757416] [2022-11-21 09:07:38,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:38,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:07:38,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:07:38,686 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:07:38,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ac44c-c339-4871-bccc-9e4081ea2e7b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 09:07:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:39,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1983 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 09:07:39,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:07:40,035 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 09:07:40,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:07:40,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217757416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:40,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:07:40,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-11-21 09:07:40,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555108397] [2022-11-21 09:07:40,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:40,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:07:40,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:40,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:07:40,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-21 09:07:40,045 INFO L87 Difference]: Start difference. First operand 92864 states and 131749 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 09:07:45,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:07:45,416 INFO L93 Difference]: Finished difference Result 209274 states and 296789 transitions. [2022-11-21 09:07:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 09:07:45,417 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2022-11-21 09:07:45,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:07:46,131 INFO L225 Difference]: With dead ends: 209274 [2022-11-21 09:07:46,131 INFO L226 Difference]: Without dead ends: 116427 [2022-11-21 09:07:46,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-11-21 09:07:46,438 INFO L413 NwaCegarLoop]: 3143 mSDtfsCounter, 2384 mSDsluCounter, 14890 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2388 SdHoareTripleChecker+Valid, 18033 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:07:46,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2388 Valid, 18033 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:07:46,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116427 states.