./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--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/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--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa --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 9a2f972b53b4f15abb2f85e3f4029427adee7726e36e16b2a641b76be8e63ca1 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:30:11,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:30:11,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:30:11,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:30:11,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:30:11,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:30:11,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:30:11,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:30:11,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:30:11,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:30:11,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:30:11,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:30:11,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:30:11,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:30:11,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:30:11,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:30:11,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:30:11,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:30:11,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:30:11,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:30:11,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:30:11,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:30:11,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:30:11,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:30:11,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:30:11,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:30:11,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:30:11,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:30:11,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:30:11,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:30:11,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:30:11,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:30:11,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:30:11,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:30:11,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:30:11,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:30:11,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:30:11,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:30:11,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:30:11,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:30:11,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:30:11,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 19:30:11,759 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:30:11,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:30:11,760 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:30:11,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:30:11,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:30:11,760 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:30:11,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:30:11,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:30:11,761 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:30:11,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:30:11,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:30:11,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:30:11,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:30:11,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:30:11,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:30:11,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:30:11,762 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:30:11,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:30:11,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:30:11,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:30:11,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:30:11,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:30:11,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:30:11,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:30:11,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:30:11,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:30:11,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:30:11,763 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:30:11,763 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:30:11,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:30:11,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:30:11,764 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_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a2f972b53b4f15abb2f85e3f4029427adee7726e36e16b2a641b76be8e63ca1 [2021-12-06 19:30:11,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:30:11,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:30:11,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:30:11,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:30:11,963 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:30:11,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2021-12-06 19:30:12,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/data/4d2e840ea/08824f786c1842598dcf4a97d15c2b8a/FLAG10c5fcaf9 [2021-12-06 19:30:12,790 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:30:12,791 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2021-12-06 19:30:12,842 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/data/4d2e840ea/08824f786c1842598dcf4a97d15c2b8a/FLAG10c5fcaf9 [2021-12-06 19:30:12,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/data/4d2e840ea/08824f786c1842598dcf4a97d15c2b8a [2021-12-06 19:30:12,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:30:12,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:30:12,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:30:12,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:30:12,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:30:12,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:30:12" (1/1) ... [2021-12-06 19:30:12,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b5f8442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:12, skipping insertion in model container [2021-12-06 19:30:12,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:30:12" (1/1) ... [2021-12-06 19:30:12,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:30:13,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:30:13,600 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6627] [2021-12-06 19:30:13,600 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6628-6629] [2021-12-06 19:30:13,842 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i[195310,195323] [2021-12-06 19:30:17,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:30:17,194 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:30:17,279 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6627] [2021-12-06 19:30:17,280 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6628-6629] [2021-12-06 19:30:17,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i[195310,195323] [2021-12-06 19:30:17,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:30:17,840 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:30:17,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17 WrapperNode [2021-12-06 19:30:17,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:30:17,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:30:17,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:30:17,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:30:17,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17" (1/1) ... [2021-12-06 19:30:17,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17" (1/1) ... [2021-12-06 19:30:18,334 INFO L137 Inliner]: procedures = 586, calls = 8562, calls flagged for inlining = 257, calls inlined = 255, statements flattened = 15180 [2021-12-06 19:30:18,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:30:18,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:30:18,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:30:18,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:30:18,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17" (1/1) ... [2021-12-06 19:30:18,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17" (1/1) ... [2021-12-06 19:30:18,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17" (1/1) ... [2021-12-06 19:30:18,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17" (1/1) ... [2021-12-06 19:30:18,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17" (1/1) ... [2021-12-06 19:30:18,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17" (1/1) ... [2021-12-06 19:30:18,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17" (1/1) ... [2021-12-06 19:30:18,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:30:18,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:30:18,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:30:18,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:30:18,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17" (1/1) ... [2021-12-06 19:30:18,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:30:18,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:30:18,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:30:18,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:30:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-06 19:30:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-06 19:30:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-06 19:30:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-06 19:30:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread32_locked [2021-12-06 19:30:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread32_locked [2021-12-06 19:30:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_info_clear_status [2021-12-06 19:30:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_info_clear_status [2021-12-06 19:30:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure zd_check_signal [2021-12-06 19:30:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_check_signal [2021-12-06 19:30:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-12-06 19:30:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-12-06 19:30:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-06 19:30:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-06 19:30:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure post_reset [2021-12-06 19:30:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure post_reset [2021-12-06 19:30:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-06 19:30:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-06 19:30:18,841 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_init_hw [2021-12-06 19:30:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_init_hw [2021-12-06 19:30:18,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 19:30:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 19:30:18,841 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-06 19:30:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-06 19:30:18,841 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_usbdev [2021-12-06 19:30:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_usbdev [2021-12-06 19:30:18,842 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_rx [2021-12-06 19:30:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_rx [2021-12-06 19:30:18,842 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_set_channel [2021-12-06 19:30:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_set_channel [2021-12-06 19:30:18,842 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_clear [2021-12-06 19:30:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_clear [2021-12-06 19:30:18,842 INFO L130 BoogieDeclarations]: Found specification of procedure zd_switch_radio_off [2021-12-06 19:30:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_switch_radio_off [2021-12-06 19:30:18,843 INFO L130 BoogieDeclarations]: Found specification of procedure free_rx_urb [2021-12-06 19:30:18,843 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rx_urb [2021-12-06 19:30:18,843 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_configure_filter [2021-12-06 19:30:18,843 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_configure_filter [2021-12-06 19:30:18,843 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2021-12-06 19:30:18,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2021-12-06 19:30:18,843 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 19:30:18,843 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 19:30:18,844 INFO L130 BoogieDeclarations]: Found specification of procedure fw_reg_addr [2021-12-06 19:30:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_reg_addr [2021-12-06 19:30:18,844 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_beacon_get [2021-12-06 19:30:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_beacon_get [2021-12-06 19:30:18,844 INFO L130 BoogieDeclarations]: Found specification of procedure zd_switch_radio_on [2021-12-06 19:30:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_switch_radio_on [2021-12-06 19:30:18,844 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-06 19:30:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_config [2021-12-06 19:30:18,845 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_config [2021-12-06 19:30:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-06 19:30:18,845 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-06 19:30:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_init_mode [2021-12-06 19:30:18,845 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_init_mode [2021-12-06 19:30:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-06 19:30:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-06 19:30:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-06 19:30:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_enable_hwint [2021-12-06 19:30:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_enable_hwint [2021-12-06 19:30:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 19:30:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 19:30:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 19:30:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_lock_phy_regs [2021-12-06 19:30:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_lock_phy_regs [2021-12-06 19:30:18,847 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 19:30:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 19:30:18,847 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_to_chip [2021-12-06 19:30:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_to_chip [2021-12-06 19:30:18,847 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_free_cur_beacon_locked [2021-12-06 19:30:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_free_cur_beacon_locked [2021-12-06 19:30:18,847 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_is_first [2021-12-06 19:30:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_is_first [2021-12-06 19:30:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async [2021-12-06 19:30:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async [2021-12-06 19:30:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2021-12-06 19:30:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2021-12-06 19:30:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 19:30:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 19:30:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwrite_locked [2021-12-06 19:30:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwrite_locked [2021-12-06 19:30:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2021-12-06 19:30:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2021-12-06 19:30:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 19:30:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 19:30:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 19:30:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 19:30:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2021-12-06 19:30:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2021-12-06 19:30:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_free_cur_beacon [2021-12-06 19:30:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_free_cur_beacon [2021-12-06 19:30:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_remove_interface [2021-12-06 19:30:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_remove_interface [2021-12-06 19:30:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 19:30:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure check_read_regs [2021-12-06 19:30:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure check_read_regs [2021-12-06 19:30:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_clear [2021-12-06 19:30:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_clear [2021-12-06 19:30:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx_packet [2021-12-06 19:30:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx_packet [2021-12-06 19:30:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_stop [2021-12-06 19:30:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_stop [2021-12-06 19:30:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32a_locked [2021-12-06 19:30:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32a_locked [2021-12-06 19:30:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure zd1211b_al7230b_finalize [2021-12-06 19:30:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure zd1211b_al7230b_finalize [2021-12-06 19:30:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 19:30:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 19:30:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite16_locked [2021-12-06 19:30:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite16_locked [2021-12-06 19:30:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-06 19:30:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-06 19:30:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-06 19:30:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-06 19:30:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure test_init [2021-12-06 19:30:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure test_init [2021-12-06 19:30:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2021-12-06 19:30:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2021-12-06 19:30:18,854 INFO L130 BoogieDeclarations]: Found specification of procedure request_fw_file [2021-12-06 19:30:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure request_fw_file [2021-12-06 19:30:18,854 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-06 19:30:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-06 19:30:18,854 INFO L130 BoogieDeclarations]: Found specification of procedure dump_cr [2021-12-06 19:30:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_cr [2021-12-06 19:30:18,854 INFO L130 BoogieDeclarations]: Found specification of procedure usb_pipe_endpoint [2021-12-06 19:30:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_pipe_endpoint [2021-12-06 19:30:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mc_clear [2021-12-06 19:30:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mc_clear [2021-12-06 19:30:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-12-06 19:30:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-12-06 19:30:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 19:30:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure zd_write_mac_addr_common [2021-12-06 19:30:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_write_mac_addr_common [2021-12-06 19:30:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_prepare_multicast [2021-12-06 19:30:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_prepare_multicast [2021-12-06 19:30:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-06 19:30:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-06 19:30:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_tx [2021-12-06 19:30:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_tx [2021-12-06 19:30:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_hw [2021-12-06 19:30:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_hw [2021-12-06 19:30:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:30:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-12-06 19:30:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-12-06 19:30:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_ioread16 [2021-12-06 19:30:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_ioread16 [2021-12-06 19:30:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 19:30:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_resume [2021-12-06 19:30:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_resume [2021-12-06 19:30:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 19:30:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 19:30:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 19:30:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-06 19:30:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-06 19:30:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread32v_locked [2021-12-06 19:30:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread32v_locked [2021-12-06 19:30:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure get_fw_name [2021-12-06 19:30:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fw_name [2021-12-06 19:30:18,859 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 19:30:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 19:30:18,859 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_is_zd1211b [2021-12-06 19:30:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_is_zd1211b [2021-12-06 19:30:18,859 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-06 19:30:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-06 19:30:18,859 INFO L130 BoogieDeclarations]: Found specification of procedure set_beacon_interval [2021-12-06 19:30:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure set_beacon_interval [2021-12-06 19:30:18,859 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_filter [2021-12-06 19:30:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_filter [2021-12-06 19:30:18,860 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_synth_set_channel [2021-12-06 19:30:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_synth_set_channel [2021-12-06 19:30:18,860 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-06 19:30:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-06 19:30:18,860 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async_start [2021-12-06 19:30:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async_start [2021-12-06 19:30:18,860 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_rx [2021-12-06 19:30:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_rx [2021-12-06 19:30:18,861 INFO L130 BoogieDeclarations]: Found specification of procedure zd1211b_al2230_finalize_rf [2021-12-06 19:30:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure zd1211b_al2230_finalize_rf [2021-12-06 19:30:18,861 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32_locked [2021-12-06 19:30:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32_locked [2021-12-06 19:30:18,861 INFO L130 BoogieDeclarations]: Found specification of procedure handle_regs_int_override [2021-12-06 19:30:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_regs_int_override [2021-12-06 19:30:18,861 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_set_multicast_hash [2021-12-06 19:30:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_set_multicast_hash [2021-12-06 19:30:18,862 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-06 19:30:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-06 19:30:18,862 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-06 19:30:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-06 19:30:18,862 INFO L130 BoogieDeclarations]: Found specification of procedure disable_hwint [2021-12-06 19:30:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_hwint [2021-12-06 19:30:18,862 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 19:30:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 19:30:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_tx_status [2021-12-06 19:30:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_tx_status [2021-12-06 19:30:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_rxtx [2021-12-06 19:30:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_rxtx [2021-12-06 19:30:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-12-06 19:30:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-12-06 19:30:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_unlock_phy_regs [2021-12-06 19:30:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_unlock_phy_regs [2021-12-06 19:30:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-06 19:30:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-06 19:30:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 19:30:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 19:30:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_name [2021-12-06 19:30:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_name [2021-12-06 19:30:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-06 19:30:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-06 19:30:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-06 19:30:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-06 19:30:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_clear [2021-12-06 19:30:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_clear [2021-12-06 19:30:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwritev_locked [2021-12-06 19:30:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwritev_locked [2021-12-06 19:30:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:30:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:30:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_wake_queues [2021-12-06 19:30:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_wake_queues [2021-12-06 19:30:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_control_leds [2021-12-06 19:30:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_control_leds [2021-12-06 19:30:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-06 19:30:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-06 19:30:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-06 19:30:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-06 19:30:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure scnprint_id___0 [2021-12-06 19:30:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprint_id___0 [2021-12-06 19:30:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_pspoll [2021-12-06 19:30:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_pspoll [2021-12-06 19:30:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async_end [2021-12-06 19:30:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async_end [2021-12-06 19:30:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-12-06 19:30:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-12-06 19:30:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 19:30:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 19:30:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure upload_code [2021-12-06 19:30:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure upload_code [2021-12-06 19:30:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 19:30:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 19:30:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-12-06 19:30:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-12-06 19:30:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwrite_cr_locked [2021-12-06 19:30:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwrite_cr_locked [2021-12-06 19:30:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~TO~int [2021-12-06 19:30:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~TO~int [2021-12-06 19:30:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-06 19:30:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-06 19:30:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure set_rts_cts [2021-12-06 19:30:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rts_cts [2021-12-06 19:30:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_mac [2021-12-06 19:30:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_mac [2021-12-06 19:30:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure __zd_usb_disable_rx [2021-12-06 19:30:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __zd_usb_disable_rx [2021-12-06 19:30:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure zd_submit_waiting_urb [2021-12-06 19:30:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_submit_waiting_urb [2021-12-06 19:30:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_stop [2021-12-06 19:30:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_stop [2021-12-06 19:30:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2021-12-06 19:30:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2021-12-06 19:30:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_reset_rx_idle_timer [2021-12-06 19:30:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_reset_rx_idle_timer [2021-12-06 19:30:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 19:30:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 19:30:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-06 19:30:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-06 19:30:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 19:30:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 19:30:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure zd_set_beacon_interval [2021-12-06 19:30:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_set_beacon_interval [2021-12-06 19:30:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-06 19:30:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-06 19:30:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 19:30:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 19:30:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcdDevice [2021-12-06 19:30:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcdDevice [2021-12-06 19:30:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_int [2021-12-06 19:30:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_int [2021-12-06 19:30:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 19:30:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 19:30:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-12-06 19:30:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-12-06 19:30:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-06 19:30:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-06 19:30:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 19:30:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 19:30:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 19:30:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_init_hw [2021-12-06 19:30:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_init_hw [2021-12-06 19:30:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure __zd_usb_enable_rx [2021-12-06 19:30:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __zd_usb_enable_rx [2021-12-06 19:30:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure usb_int_regs_length [2021-12-06 19:30:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_int_regs_length [2021-12-06 19:30:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 19:30:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-06 19:30:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-06 19:30:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2021-12-06 19:30:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2021-12-06 19:30:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32 [2021-12-06 19:30:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32 [2021-12-06 19:30:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 19:30:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_config_beacon [2021-12-06 19:30:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_config_beacon [2021-12-06 19:30:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-06 19:30:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-06 19:30:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-06 19:30:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-06 19:30:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-06 19:30:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-06 19:30:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure zd_hw_mac [2021-12-06 19:30:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_hw_mac [2021-12-06 19:30:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure read_values [2021-12-06 19:30:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure read_values [2021-12-06 19:30:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-06 19:30:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-06 19:30:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-06 19:30:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-06 19:30:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-06 19:30:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-06 19:30:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_start [2021-12-06 19:30:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_start [2021-12-06 19:30:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-06 19:30:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-06 19:30:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-06 19:30:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-06 19:30:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 19:30:18,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 19:30:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect [2021-12-06 19:30:18,878 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect [2021-12-06 19:30:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure zd_intf_to_hw [2021-12-06 19:30:18,878 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_intf_to_hw [2021-12-06 19:30:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure inc_addr [2021-12-06 19:30:18,878 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_addr [2021-12-06 19:30:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-06 19:30:18,878 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-06 19:30:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_to_mac [2021-12-06 19:30:18,879 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_to_mac [2021-12-06 19:30:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwritev_cr_locked [2021-12-06 19:30:18,879 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwritev_cr_locked [2021-12-06 19:30:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure pre_reset [2021-12-06 19:30:18,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pre_reset [2021-12-06 19:30:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-06 19:30:18,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-06 19:30:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 19:30:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 19:30:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_switch_radio_on [2021-12-06 19:30:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_switch_radio_on [2021-12-06 19:30:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-06 19:30:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-06 19:30:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 19:30:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 19:30:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2021-12-06 19:30:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2021-12-06 19:30:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_write_vco_cfg [2021-12-06 19:30:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_write_vco_cfg [2021-12-06 19:30:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 19:30:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_switch_radio_off [2021-12-06 19:30:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_switch_radio_off [2021-12-06 19:30:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ep_regs_out_msg [2021-12-06 19:30:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ep_regs_out_msg [2021-12-06 19:30:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-06 19:30:18,882 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-06 19:30:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 19:30:18,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 19:30:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_chip [2021-12-06 19:30:18,882 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_chip [2021-12-06 19:30:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_hwint [2021-12-06 19:30:18,882 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_hwint [2021-12-06 19:30:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_ioread16v [2021-12-06 19:30:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_ioread16v [2021-12-06 19:30:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_init_hw [2021-12-06 19:30:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_init_hw [2021-12-06 19:30:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread16_locked [2021-12-06 19:30:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread16_locked [2021-12-06 19:30:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_init_hw [2021-12-06 19:30:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_init_hw [2021-12-06 19:30:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_bss_info_changed [2021-12-06 19:30:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_bss_info_changed [2021-12-06 19:30:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2021-12-06 19:30:18,884 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2021-12-06 19:30:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-12-06 19:30:18,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-12-06 19:30:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-06 19:30:18,884 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-06 19:30:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_get_tsf [2021-12-06 19:30:18,884 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_get_tsf [2021-12-06 19:30:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_int [2021-12-06 19:30:18,885 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_int [2021-12-06 19:30:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-06 19:30:18,885 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-06 19:30:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2021-12-06 19:30:18,885 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2021-12-06 19:30:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread16v_locked [2021-12-06 19:30:18,885 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread16v_locked [2021-12-06 19:30:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-06 19:30:18,885 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-06 19:30:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_enable_int [2021-12-06 19:30:18,886 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_enable_int [2021-12-06 19:30:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2021-12-06 19:30:18,886 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2021-12-06 19:30:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 19:30:18,886 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 19:30:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure _zd_iowrite32v_async_locked [2021-12-06 19:30:18,886 INFO L138 BoogieDeclarations]: Found implementation of procedure _zd_iowrite32v_async_locked [2021-12-06 19:30:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure set_mac_and_bssid [2021-12-06 19:30:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mac_and_bssid [2021-12-06 19:30:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_tx [2021-12-06 19:30:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_tx [2021-12-06 19:30:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_add_interface [2021-12-06 19:30:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_add_interface [2021-12-06 19:30:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:30:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure zd_write_mac_addr [2021-12-06 19:30:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_write_mac_addr [2021-12-06 19:30:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-12-06 19:30:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-12-06 19:30:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite16a_locked [2021-12-06 19:30:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite16a_locked [2021-12-06 19:30:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-06 19:30:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-06 19:30:19,671 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:30:19,675 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:30:24,406 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 19:34:11,435 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:34:11,461 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:34:11,461 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 19:34:11,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:34:11 BoogieIcfgContainer [2021-12-06 19:34:11,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:34:11,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:34:11,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:34:11,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:34:11,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:30:12" (1/3) ... [2021-12-06 19:34:11,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dff3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:34:11, skipping insertion in model container [2021-12-06 19:34:11,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:30:17" (2/3) ... [2021-12-06 19:34:11,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dff3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:34:11, skipping insertion in model container [2021-12-06 19:34:11,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:34:11" (3/3) ... [2021-12-06 19:34:11,472 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2021-12-06 19:34:11,477 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:34:11,477 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:34:11,529 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:34:11,534 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 19:34:11,535 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:34:11,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 3980 states, 2649 states have (on average 1.3148357870894678) internal successors, (3483), 2743 states have internal predecessors, (3483), 1131 states have call successors, (1131), 199 states have call predecessors, (1131), 198 states have return successors, (1127), 1122 states have call predecessors, (1127), 1127 states have call successors, (1127) [2021-12-06 19:34:11,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:34:11,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:11,614 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 19:34:11,614 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:34:11,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:11,618 INFO L85 PathProgramCache]: Analyzing trace with hash -2126896646, now seen corresponding path program 1 times [2021-12-06 19:34:11,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:11,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641383917] [2021-12-06 19:34:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:11,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:12,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:34:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 19:34:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:12,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:34:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:12,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:34:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:12,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 19:34:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:12,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 19:34:12,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:12,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641383917] [2021-12-06 19:34:12,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641383917] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:12,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:12,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:34:12,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119546590] [2021-12-06 19:34:12,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:12,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:34:12,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:12,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:34:12,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:34:12,438 INFO L87 Difference]: Start difference. First operand has 3980 states, 2649 states have (on average 1.3148357870894678) internal successors, (3483), 2743 states have internal predecessors, (3483), 1131 states have call successors, (1131), 199 states have call predecessors, (1131), 198 states have return successors, (1127), 1122 states have call predecessors, (1127), 1127 states have call successors, (1127) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 19:34:25,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:34:30,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:34:42,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:34:43,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:34:46,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:34:49,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:34:51,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:34:53,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:34:56,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:34:58,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:00,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:02,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:05,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:07,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:09,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:12,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:14,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:16,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:18,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:23,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:25,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:28,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:30,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:32,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:34,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:37,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:38,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:40,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:41,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:41,654 INFO L93 Difference]: Finished difference Result 11262 states and 16926 transitions. [2021-12-06 19:35:41,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:35:41,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2021-12-06 19:35:41,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:41,720 INFO L225 Difference]: With dead ends: 11262 [2021-12-06 19:35:41,720 INFO L226 Difference]: Without dead ends: 7235 [2021-12-06 19:35:41,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:35:41,756 INFO L933 BasicCegarLoop]: 6954 mSDtfsCounter, 4748 mSDsluCounter, 7985 mSDsCounter, 0 mSdLazyCounter, 3369 mSolverCounterSat, 2265 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5365 SdHoareTripleChecker+Valid, 14939 SdHoareTripleChecker+Invalid, 5654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2265 IncrementalHoareTripleChecker+Valid, 3369 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:41,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5365 Valid, 14939 Invalid, 5654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2265 Valid, 3369 Invalid, 20 Unknown, 0 Unchecked, 88.3s Time] [2021-12-06 19:35:41,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7235 states. [2021-12-06 19:35:42,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7235 to 6890. [2021-12-06 19:35:42,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6890 states, 4572 states have (on average 1.3116797900262467) internal successors, (5997), 4723 states have internal predecessors, (5997), 1958 states have call successors, (1958), 360 states have call predecessors, (1958), 359 states have return successors, (1957), 1951 states have call predecessors, (1957), 1957 states have call successors, (1957) [2021-12-06 19:35:42,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6890 states to 6890 states and 9912 transitions. [2021-12-06 19:35:42,144 INFO L78 Accepts]: Start accepts. Automaton has 6890 states and 9912 transitions. Word has length 45 [2021-12-06 19:35:42,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:42,144 INFO L470 AbstractCegarLoop]: Abstraction has 6890 states and 9912 transitions. [2021-12-06 19:35:42,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 19:35:42,145 INFO L276 IsEmpty]: Start isEmpty. Operand 6890 states and 9912 transitions. [2021-12-06 19:35:42,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-06 19:35:42,151 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:42,151 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:35:42,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:35:42,151 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:42,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:42,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2071648707, now seen corresponding path program 1 times [2021-12-06 19:35:42,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:42,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989868668] [2021-12-06 19:35:42,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:42,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:35:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 19:35:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 19:35:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 19:35:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:35:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 19:35:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 19:35:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 19:35:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:35:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 19:35:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:35:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-06 19:35:42,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:42,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989868668] [2021-12-06 19:35:42,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989868668] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:42,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:42,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:35:42,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97452816] [2021-12-06 19:35:42,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:42,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:35:42,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:42,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:35:42,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:35:42,846 INFO L87 Difference]: Start difference. First operand 6890 states and 9912 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 19:35:48,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:50,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:52,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:35:54,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:36:15,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:36:16,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:36:22,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:36:29,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:36:43,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:36:58,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:36:59,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:00,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:06,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:08,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:10,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:12,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:15,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:17,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:31,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:33,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:36,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:38,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:41,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:43,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:45,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:46,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:47,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:53,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:00,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:02,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:10,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:15,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:15,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:15,385 INFO L93 Difference]: Finished difference Result 19232 states and 28086 transitions. [2021-12-06 19:38:15,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:38:15,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 82 [2021-12-06 19:38:15,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:15,484 INFO L225 Difference]: With dead ends: 19232 [2021-12-06 19:38:15,485 INFO L226 Difference]: Without dead ends: 12347 [2021-12-06 19:38:15,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:38:15,517 INFO L933 BasicCegarLoop]: 8176 mSDtfsCounter, 8011 mSDsluCounter, 12030 mSDsCounter, 0 mSdLazyCounter, 7811 mSolverCounterSat, 5613 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 142.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8816 SdHoareTripleChecker+Valid, 20206 SdHoareTripleChecker+Invalid, 13442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5613 IncrementalHoareTripleChecker+Valid, 7811 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 151.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:15,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8816 Valid, 20206 Invalid, 13442 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5613 Valid, 7811 Invalid, 18 Unknown, 0 Unchecked, 151.3s Time] [2021-12-06 19:38:15,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12347 states. [2021-12-06 19:38:15,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12347 to 10544. [2021-12-06 19:38:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10544 states, 7000 states have (on average 1.3072857142857144) internal successors, (9151), 7247 states have internal predecessors, (9151), 2983 states have call successors, (2983), 553 states have call predecessors, (2983), 560 states have return successors, (3004), 2972 states have call predecessors, (3004), 2982 states have call successors, (3004) [2021-12-06 19:38:16,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10544 states to 10544 states and 15138 transitions. [2021-12-06 19:38:16,044 INFO L78 Accepts]: Start accepts. Automaton has 10544 states and 15138 transitions. Word has length 82 [2021-12-06 19:38:16,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:16,044 INFO L470 AbstractCegarLoop]: Abstraction has 10544 states and 15138 transitions. [2021-12-06 19:38:16,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 19:38:16,045 INFO L276 IsEmpty]: Start isEmpty. Operand 10544 states and 15138 transitions. [2021-12-06 19:38:16,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-06 19:38:16,048 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:16,048 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:16,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:38:16,048 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:16,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash 55771545, now seen corresponding path program 1 times [2021-12-06 19:38:16,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:16,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629331001] [2021-12-06 19:38:16,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:16,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:38:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 19:38:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:16,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:38:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:38:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 19:38:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:16,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 19:38:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:16,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:38:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:16,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:38:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:16,609 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-06 19:38:16,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:16,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629331001] [2021-12-06 19:38:16,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629331001] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:16,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:16,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:38:16,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652262465] [2021-12-06 19:38:16,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:16,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:38:16,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:16,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:38:16,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:38:16,612 INFO L87 Difference]: Start difference. First operand 10544 states and 15138 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 19:38:20,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:32,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:35,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:45,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:46,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:50,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:52,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:54,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:57,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:59,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:01,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:04,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:09,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:11,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:13,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:15,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:16,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:18,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:20,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:20,770 INFO L93 Difference]: Finished difference Result 21617 states and 31234 transitions. [2021-12-06 19:39:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:39:20,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2021-12-06 19:39:20,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:20,832 INFO L225 Difference]: With dead ends: 21617 [2021-12-06 19:39:20,832 INFO L226 Difference]: Without dead ends: 11085 [2021-12-06 19:39:20,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:39:20,862 INFO L933 BasicCegarLoop]: 5466 mSDtfsCounter, 785 mSDsluCounter, 7393 mSDsCounter, 0 mSdLazyCounter, 2562 mSolverCounterSat, 1193 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 12859 SdHoareTripleChecker+Invalid, 3767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 2562 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.6s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:20,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [919 Valid, 12859 Invalid, 3767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1193 Valid, 2562 Invalid, 12 Unknown, 0 Unchecked, 63.6s Time] [2021-12-06 19:39:20,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2021-12-06 19:39:21,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 10530. [2021-12-06 19:39:21,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10530 states, 6988 states have (on average 1.307097882083572) internal successors, (9134), 7236 states have internal predecessors, (9134), 2982 states have call successors, (2982), 552 states have call predecessors, (2982), 559 states have return successors, (3003), 2970 states have call predecessors, (3003), 2981 states have call successors, (3003) [2021-12-06 19:39:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10530 states to 10530 states and 15119 transitions. [2021-12-06 19:39:21,254 INFO L78 Accepts]: Start accepts. Automaton has 10530 states and 15119 transitions. Word has length 78 [2021-12-06 19:39:21,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:21,255 INFO L470 AbstractCegarLoop]: Abstraction has 10530 states and 15119 transitions. [2021-12-06 19:39:21,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 19:39:21,256 INFO L276 IsEmpty]: Start isEmpty. Operand 10530 states and 15119 transitions. [2021-12-06 19:39:21,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 19:39:21,258 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:21,258 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-06 19:39:21,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:39:21,259 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:21,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:21,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1306792679, now seen corresponding path program 1 times [2021-12-06 19:39:21,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:21,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389716257] [2021-12-06 19:39:21,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:21,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:21,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:39:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:21,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 19:39:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:21,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:39:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:21,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:39:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:21,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 19:39:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:21,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 19:39:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:21,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 19:39:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:21,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 19:39:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:21,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:39:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:21,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 19:39:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:21,859 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-06 19:39:21,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:21,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389716257] [2021-12-06 19:39:21,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389716257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:21,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:39:21,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:39:21,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580783275] [2021-12-06 19:39:21,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:21,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:39:21,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:21,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:39:21,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:39:21,860 INFO L87 Difference]: Start difference. First operand 10530 states and 15119 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 19:39:36,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:39,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:41,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:50,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:51,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:56,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:39:58,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:40:01,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:40:03,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:40:05,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:40:07,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:40:13,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:40:15,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:40:18,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:40:20,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:40:21,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:40:24,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:40:24,801 INFO L93 Difference]: Finished difference Result 22296 states and 32338 transitions. [2021-12-06 19:40:24,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:40:24,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 91 [2021-12-06 19:40:24,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:40:24,846 INFO L225 Difference]: With dead ends: 22296 [2021-12-06 19:40:24,846 INFO L226 Difference]: Without dead ends: 11782 [2021-12-06 19:40:24,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:40:24,872 INFO L933 BasicCegarLoop]: 5984 mSDtfsCounter, 1090 mSDsluCounter, 7782 mSDsCounter, 0 mSdLazyCounter, 2708 mSolverCounterSat, 1189 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 13766 SdHoareTripleChecker+Invalid, 3907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1189 IncrementalHoareTripleChecker+Valid, 2708 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:40:24,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1354 Valid, 13766 Invalid, 3907 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1189 Valid, 2708 Invalid, 10 Unknown, 0 Unchecked, 62.4s Time] [2021-12-06 19:40:24,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11782 states. [2021-12-06 19:40:25,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11782 to 10544. [2021-12-06 19:40:25,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10544 states, 7002 states have (on average 1.307055127106541) internal successors, (9152), 7250 states have internal predecessors, (9152), 2982 states have call successors, (2982), 552 states have call predecessors, (2982), 559 states have return successors, (3003), 2970 states have call predecessors, (3003), 2981 states have call successors, (3003) [2021-12-06 19:40:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10544 states to 10544 states and 15137 transitions. [2021-12-06 19:40:25,231 INFO L78 Accepts]: Start accepts. Automaton has 10544 states and 15137 transitions. Word has length 91 [2021-12-06 19:40:25,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:40:25,232 INFO L470 AbstractCegarLoop]: Abstraction has 10544 states and 15137 transitions. [2021-12-06 19:40:25,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 19:40:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 10544 states and 15137 transitions. [2021-12-06 19:40:25,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 19:40:25,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:40:25,234 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-06 19:40:25,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:40:25,234 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:40:25,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:40:25,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1687642941, now seen corresponding path program 1 times [2021-12-06 19:40:25,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:40:25,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053175459] [2021-12-06 19:40:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:40:25,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:40:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:25,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:40:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 19:40:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:25,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:40:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:25,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:40:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:25,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 19:40:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:25,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 19:40:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:25,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 19:40:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:25,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 19:40:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:25,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:40:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:25,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 19:40:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-06 19:40:25,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:40:25,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053175459] [2021-12-06 19:40:25,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053175459] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:40:25,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763301987] [2021-12-06 19:40:25,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:40:25,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:40:25,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:40:25,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:40:25,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 19:40:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:27,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 8630 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:40:27,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:40:28,776 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 19:40:28,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:40:28,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763301987] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:40:28,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:40:28,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-06 19:40:28,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975278174] [2021-12-06 19:40:28,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:40:28,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:40:28,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:40:28,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:40:28,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:40:28,778 INFO L87 Difference]: Start difference. First operand 10544 states and 15137 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 19:40:29,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:40:29,019 INFO L93 Difference]: Finished difference Result 11048 states and 15770 transitions. [2021-12-06 19:40:29,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:40:29,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 96 [2021-12-06 19:40:29,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:40:29,061 INFO L225 Difference]: With dead ends: 11048 [2021-12-06 19:40:29,062 INFO L226 Difference]: Without dead ends: 11045 [2021-12-06 19:40:29,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:40:29,071 INFO L933 BasicCegarLoop]: 5943 mSDtfsCounter, 5188 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5188 SdHoareTripleChecker+Valid, 6668 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:40:29,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5188 Valid, 6668 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:40:29,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2021-12-06 19:40:29,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 11025. [2021-12-06 19:40:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11025 states, 7349 states have (on average 1.3046673016736972) internal successors, (9588), 7601 states have internal predecessors, (9588), 3060 states have call successors, (3060), 608 states have call predecessors, (3060), 615 states have return successors, (3087), 3048 states have call predecessors, (3087), 3059 states have call successors, (3087) [2021-12-06 19:40:29,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11025 states to 11025 states and 15735 transitions. [2021-12-06 19:40:29,422 INFO L78 Accepts]: Start accepts. Automaton has 11025 states and 15735 transitions. Word has length 96 [2021-12-06 19:40:29,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:40:29,423 INFO L470 AbstractCegarLoop]: Abstraction has 11025 states and 15735 transitions. [2021-12-06 19:40:29,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 19:40:29,423 INFO L276 IsEmpty]: Start isEmpty. Operand 11025 states and 15735 transitions. [2021-12-06 19:40:29,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-06 19:40:29,457 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:40:29,457 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:40:29,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:40:29,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:40:29,658 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:40:29,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:40:29,658 INFO L85 PathProgramCache]: Analyzing trace with hash 701087366, now seen corresponding path program 1 times [2021-12-06 19:40:29,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:40:29,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019245875] [2021-12-06 19:40:29,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:40:29,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:40:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:40:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 19:40:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:40:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:40:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 19:40:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 19:40:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 19:40:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 19:40:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:40:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 19:40:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 19:40:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 19:40:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 19:40:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 19:40:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:40:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 19:40:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 19:40:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-06 19:40:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 19:40:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:40:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-06 19:40:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 19:40:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 19:40:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:40:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:40:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:40:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-06 19:40:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-06 19:40:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-06 19:40:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:40:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:40:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-06 19:40:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:40:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-06 19:40:30,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:40:30,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019245875] [2021-12-06 19:40:30,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019245875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:40:30,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:40:30,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:40:30,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374165287] [2021-12-06 19:40:30,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:40:30,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:40:30,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:40:30,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:40:30,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:40:30,622 INFO L87 Difference]: Start difference. First operand 11025 states and 15735 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (40), 5 states have call predecessors, (40), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-06 19:40:36,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:40:38,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:41:03,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:41:05,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:41:13,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:41:15,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:41:21,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 19:41:24,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:41:29,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:41:32,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:41:38,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:00,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:01,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:10,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:12,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:14,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:17,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:19,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:21,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:36,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:38,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:40,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:43,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:45,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:47,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:50,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:52,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:55,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:57,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:42:59,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:43:01,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:43:05,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:43:07,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:43:12,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:43:12,403 INFO L93 Difference]: Finished difference Result 26800 states and 39453 transitions. [2021-12-06 19:43:12,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:43:12,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (40), 5 states have call predecessors, (40), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 268 [2021-12-06 19:43:12,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:43:12,476 INFO L225 Difference]: With dead ends: 26800 [2021-12-06 19:43:12,476 INFO L226 Difference]: Without dead ends: 15791 [2021-12-06 19:43:12,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:43:12,510 INFO L933 BasicCegarLoop]: 5410 mSDtfsCounter, 5172 mSDsluCounter, 10779 mSDsCounter, 0 mSdLazyCounter, 8506 mSolverCounterSat, 5605 mSolverCounterUnsat, 28 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5798 SdHoareTripleChecker+Valid, 16189 SdHoareTripleChecker+Invalid, 14139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5605 IncrementalHoareTripleChecker+Valid, 8506 IncrementalHoareTripleChecker+Invalid, 28 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 160.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:43:12,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5798 Valid, 16189 Invalid, 14139 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5605 Valid, 8506 Invalid, 28 Unknown, 0 Unchecked, 160.3s Time] [2021-12-06 19:43:12,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15791 states. [2021-12-06 19:43:12,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15791 to 11193. [2021-12-06 19:43:12,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11193 states, 7472 states have (on average 1.303667023554604) internal successors, (9741), 7725 states have internal predecessors, (9741), 3095 states have call successors, (3095), 608 states have call predecessors, (3095), 625 states have return successors, (3153), 3092 states have call predecessors, (3153), 3094 states have call successors, (3153) [2021-12-06 19:43:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11193 states to 11193 states and 15989 transitions. [2021-12-06 19:43:12,985 INFO L78 Accepts]: Start accepts. Automaton has 11193 states and 15989 transitions. Word has length 268 [2021-12-06 19:43:12,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:43:12,986 INFO L470 AbstractCegarLoop]: Abstraction has 11193 states and 15989 transitions. [2021-12-06 19:43:12,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (40), 5 states have call predecessors, (40), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-06 19:43:12,986 INFO L276 IsEmpty]: Start isEmpty. Operand 11193 states and 15989 transitions. [2021-12-06 19:43:13,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-06 19:43:13,017 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:43:13,017 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:43:13,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 19:43:13,017 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:43:13,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:43:13,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1727289610, now seen corresponding path program 1 times [2021-12-06 19:43:13,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:43:13,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966608765] [2021-12-06 19:43:13,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:13,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:43:13,174 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:43:13,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129203530] [2021-12-06 19:43:13,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:13,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:13,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:43:13,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:43:13,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 19:43:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:43:14,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 9660 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:43:14,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:43:15,079 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-06 19:43:15,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:43:15,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:43:15,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966608765] [2021-12-06 19:43:15,080 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:43:15,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129203530] [2021-12-06 19:43:15,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129203530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:43:15,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:43:15,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:43:15,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361648726] [2021-12-06 19:43:15,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:43:15,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:43:15,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:43:15,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:43:15,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:43:15,083 INFO L87 Difference]: Start difference. First operand 11193 states and 15989 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-06 19:43:15,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:43:15,401 INFO L93 Difference]: Finished difference Result 22586 states and 32303 transitions. [2021-12-06 19:43:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:43:15,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 268 [2021-12-06 19:43:15,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:43:15,445 INFO L225 Difference]: With dead ends: 22586 [2021-12-06 19:43:15,445 INFO L226 Difference]: Without dead ends: 11409 [2021-12-06 19:43:15,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:43:15,517 INFO L933 BasicCegarLoop]: 5735 mSDtfsCounter, 88 mSDsluCounter, 5640 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 11375 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:43:15,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 11375 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:43:15,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11409 states. [2021-12-06 19:43:15,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11409 to 11281. [2021-12-06 19:43:15,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11281 states, 7556 states have (on average 1.3045262043409211) internal successors, (9857), 7809 states have internal predecessors, (9857), 3099 states have call successors, (3099), 608 states have call predecessors, (3099), 625 states have return successors, (3157), 3096 states have call predecessors, (3157), 3098 states have call successors, (3157) [2021-12-06 19:43:15,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11281 states to 11281 states and 16113 transitions. [2021-12-06 19:43:15,864 INFO L78 Accepts]: Start accepts. Automaton has 11281 states and 16113 transitions. Word has length 268 [2021-12-06 19:43:15,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:43:15,865 INFO L470 AbstractCegarLoop]: Abstraction has 11281 states and 16113 transitions. [2021-12-06 19:43:15,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-06 19:43:15,865 INFO L276 IsEmpty]: Start isEmpty. Operand 11281 states and 16113 transitions. [2021-12-06 19:43:15,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-06 19:43:15,891 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:43:15,891 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:43:15,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 19:43:16,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:16,093 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:43:16,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:43:16,094 INFO L85 PathProgramCache]: Analyzing trace with hash 232307729, now seen corresponding path program 1 times [2021-12-06 19:43:16,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:43:16,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899060968] [2021-12-06 19:43:16,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:16,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:43:16,285 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:43:16,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19993195] [2021-12-06 19:43:16,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:16,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:16,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:43:16,286 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:43:16,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 19:43:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:43:17,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 9682 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:43:17,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:43:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-06 19:43:18,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:43:18,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:43:18,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899060968] [2021-12-06 19:43:18,170 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:43:18,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19993195] [2021-12-06 19:43:18,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19993195] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:43:18,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:43:18,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:43:18,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982508878] [2021-12-06 19:43:18,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:43:18,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:43:18,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:43:18,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:43:18,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:43:18,171 INFO L87 Difference]: Start difference. First operand 11281 states and 16113 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-06 19:43:18,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:43:18,803 INFO L93 Difference]: Finished difference Result 22570 states and 32291 transitions. [2021-12-06 19:43:18,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:43:18,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 270 [2021-12-06 19:43:18,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:43:18,891 INFO L225 Difference]: With dead ends: 22570 [2021-12-06 19:43:18,891 INFO L226 Difference]: Without dead ends: 11305 [2021-12-06 19:43:18,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:43:18,915 INFO L933 BasicCegarLoop]: 5686 mSDtfsCounter, 7 mSDsluCounter, 11361 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 17047 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:43:18,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 17047 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:43:18,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11305 states. [2021-12-06 19:43:19,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11305 to 11293. [2021-12-06 19:43:19,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11293 states, 7564 states have (on average 1.3042041248016922) internal successors, (9865), 7821 states have internal predecessors, (9865), 3099 states have call successors, (3099), 608 states have call predecessors, (3099), 629 states have return successors, (3161), 3096 states have call predecessors, (3161), 3098 states have call successors, (3161) [2021-12-06 19:43:19,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11293 states to 11293 states and 16125 transitions. [2021-12-06 19:43:19,257 INFO L78 Accepts]: Start accepts. Automaton has 11293 states and 16125 transitions. Word has length 270 [2021-12-06 19:43:19,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:43:19,257 INFO L470 AbstractCegarLoop]: Abstraction has 11293 states and 16125 transitions. [2021-12-06 19:43:19,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-06 19:43:19,258 INFO L276 IsEmpty]: Start isEmpty. Operand 11293 states and 16125 transitions. [2021-12-06 19:43:19,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-12-06 19:43:19,283 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:43:19,283 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:43:19,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 19:43:19,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:19,485 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:43:19,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:43:19,486 INFO L85 PathProgramCache]: Analyzing trace with hash -913081965, now seen corresponding path program 1 times [2021-12-06 19:43:19,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:43:19,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5408664] [2021-12-06 19:43:19,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:19,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:43:19,683 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:43:19,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363987731] [2021-12-06 19:43:19,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:19,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:19,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:43:19,684 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:43:19,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 19:43:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:43:20,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 9723 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 19:43:20,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:43:23,620 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 19:43:23,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:43:23,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:43:23,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5408664] [2021-12-06 19:43:23,621 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:43:23,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363987731] [2021-12-06 19:43:23,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363987731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:43:23,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:43:23,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:43:23,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370217369] [2021-12-06 19:43:23,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:43:23,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:43:23,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:43:23,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:43:23,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:43:23,623 INFO L87 Difference]: Start difference. First operand 11293 states and 16125 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-06 19:43:24,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:43:24,564 INFO L93 Difference]: Finished difference Result 22568 states and 32229 transitions. [2021-12-06 19:43:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:43:24,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 279 [2021-12-06 19:43:24,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:43:24,599 INFO L225 Difference]: With dead ends: 22568 [2021-12-06 19:43:24,599 INFO L226 Difference]: Without dead ends: 11280 [2021-12-06 19:43:24,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:43:24,623 INFO L933 BasicCegarLoop]: 5691 mSDtfsCounter, 3 mSDsluCounter, 17062 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22753 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:43:24,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 22753 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:43:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11280 states. [2021-12-06 19:43:24,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11280 to 11272. [2021-12-06 19:43:24,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11272 states, 7547 states have (on average 1.3038293361600637) internal successors, (9840), 7806 states have internal predecessors, (9840), 3096 states have call successors, (3096), 607 states have call predecessors, (3096), 628 states have return successors, (3158), 3091 states have call predecessors, (3158), 3095 states have call successors, (3158) [2021-12-06 19:43:24,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11272 states to 11272 states and 16094 transitions. [2021-12-06 19:43:24,954 INFO L78 Accepts]: Start accepts. Automaton has 11272 states and 16094 transitions. Word has length 279 [2021-12-06 19:43:24,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:43:24,954 INFO L470 AbstractCegarLoop]: Abstraction has 11272 states and 16094 transitions. [2021-12-06 19:43:24,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-06 19:43:24,954 INFO L276 IsEmpty]: Start isEmpty. Operand 11272 states and 16094 transitions. [2021-12-06 19:43:24,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-12-06 19:43:24,969 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:43:24,969 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:43:25,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 19:43:25,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-06 19:43:25,171 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:43:25,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:43:25,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1785993815, now seen corresponding path program 1 times [2021-12-06 19:43:25,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:43:25,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479580110] [2021-12-06 19:43:25,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:25,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:43:25,345 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:43:25,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520590746] [2021-12-06 19:43:25,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:25,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:25,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:43:25,347 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:43:25,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 19:43:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:43:26,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 9786 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 19:43:26,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:43:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-06 19:43:29,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:43:29,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:43:29,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479580110] [2021-12-06 19:43:29,184 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:43:29,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520590746] [2021-12-06 19:43:29,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520590746] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:43:29,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:43:29,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:43:29,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800282561] [2021-12-06 19:43:29,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:43:29,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:43:29,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:43:29,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:43:29,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:43:29,187 INFO L87 Difference]: Start difference. First operand 11272 states and 16094 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-06 19:43:29,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:43:29,663 INFO L93 Difference]: Finished difference Result 22819 states and 32632 transitions. [2021-12-06 19:43:29,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:43:29,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 281 [2021-12-06 19:43:29,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:43:29,701 INFO L225 Difference]: With dead ends: 22819 [2021-12-06 19:43:29,701 INFO L226 Difference]: Without dead ends: 11563 [2021-12-06 19:43:29,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:43:29,728 INFO L933 BasicCegarLoop]: 5886 mSDtfsCounter, 257 mSDsluCounter, 5524 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 11410 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:43:29,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 11410 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:43:29,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11563 states. [2021-12-06 19:43:30,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11563 to 11282. [2021-12-06 19:43:30,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11282 states, 7553 states have (on average 1.3035879782867734) internal successors, (9846), 7812 states have internal predecessors, (9846), 3100 states have call successors, (3100), 607 states have call predecessors, (3100), 628 states have return successors, (3162), 3095 states have call predecessors, (3162), 3099 states have call successors, (3162) [2021-12-06 19:43:30,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11282 states to 11282 states and 16108 transitions. [2021-12-06 19:43:30,068 INFO L78 Accepts]: Start accepts. Automaton has 11282 states and 16108 transitions. Word has length 281 [2021-12-06 19:43:30,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:43:30,068 INFO L470 AbstractCegarLoop]: Abstraction has 11282 states and 16108 transitions. [2021-12-06 19:43:30,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-06 19:43:30,069 INFO L276 IsEmpty]: Start isEmpty. Operand 11282 states and 16108 transitions. [2021-12-06 19:43:30,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-12-06 19:43:30,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:43:30,083 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:43:30,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-06 19:43:30,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:30,286 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:43:30,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:43:30,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1540297039, now seen corresponding path program 1 times [2021-12-06 19:43:30,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:43:30,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309019966] [2021-12-06 19:43:30,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:30,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:43:30,465 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:43:30,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574437240] [2021-12-06 19:43:30,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:30,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:30,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:43:30,466 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:43:30,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 19:43:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:43:31,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 9914 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:43:31,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:43:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 19:43:33,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:43:33,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:43:33,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309019966] [2021-12-06 19:43:33,783 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:43:33,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574437240] [2021-12-06 19:43:33,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574437240] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:43:33,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:43:33,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:43:33,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060698380] [2021-12-06 19:43:33,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:43:33,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:43:33,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:43:33,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:43:33,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:43:33,785 INFO L87 Difference]: Start difference. First operand 11282 states and 16108 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-06 19:43:34,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:43:34,248 INFO L93 Difference]: Finished difference Result 22839 states and 32660 transitions. [2021-12-06 19:43:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:43:34,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 296 [2021-12-06 19:43:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:43:34,282 INFO L225 Difference]: With dead ends: 22839 [2021-12-06 19:43:34,282 INFO L226 Difference]: Without dead ends: 11573 [2021-12-06 19:43:34,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:43:34,307 INFO L933 BasicCegarLoop]: 5885 mSDtfsCounter, 266 mSDsluCounter, 5524 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 11409 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:43:34,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 11409 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:43:34,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11573 states. [2021-12-06 19:43:34,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11573 to 11282. [2021-12-06 19:43:34,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11282 states, 7553 states have (on average 1.3035879782867734) internal successors, (9846), 7812 states have internal predecessors, (9846), 3100 states have call successors, (3100), 607 states have call predecessors, (3100), 628 states have return successors, (3162), 3095 states have call predecessors, (3162), 3099 states have call successors, (3162) [2021-12-06 19:43:34,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11282 states to 11282 states and 16108 transitions. [2021-12-06 19:43:34,642 INFO L78 Accepts]: Start accepts. Automaton has 11282 states and 16108 transitions. Word has length 296 [2021-12-06 19:43:34,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:43:34,642 INFO L470 AbstractCegarLoop]: Abstraction has 11282 states and 16108 transitions. [2021-12-06 19:43:34,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-06 19:43:34,642 INFO L276 IsEmpty]: Start isEmpty. Operand 11282 states and 16108 transitions. [2021-12-06 19:43:34,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-12-06 19:43:34,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:43:34,660 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:43:34,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 19:43:34,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:34,862 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:43:34,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:43:34,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1420316896, now seen corresponding path program 1 times [2021-12-06 19:43:34,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:43:34,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202616028] [2021-12-06 19:43:34,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:34,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:43:35,042 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:43:35,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827958868] [2021-12-06 19:43:35,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:35,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:35,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:43:35,043 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:43:35,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 19:43:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:43:36,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 10177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:43:36,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:43:38,229 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-06 19:43:38,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:43:38,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:43:38,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202616028] [2021-12-06 19:43:38,230 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:43:38,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827958868] [2021-12-06 19:43:38,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827958868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:43:38,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:43:38,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:43:38,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952700520] [2021-12-06 19:43:38,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:43:38,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:43:38,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:43:38,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:43:38,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:43:38,232 INFO L87 Difference]: Start difference. First operand 11282 states and 16108 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-06 19:43:38,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:43:38,853 INFO L93 Difference]: Finished difference Result 22563 states and 32391 transitions. [2021-12-06 19:43:38,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:43:38,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 337 [2021-12-06 19:43:38,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:43:38,889 INFO L225 Difference]: With dead ends: 22563 [2021-12-06 19:43:38,889 INFO L226 Difference]: Without dead ends: 11287 [2021-12-06 19:43:38,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:43:38,917 INFO L933 BasicCegarLoop]: 5684 mSDtfsCounter, 2 mSDsluCounter, 11354 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17038 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:43:38,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 17038 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:43:38,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11287 states. [2021-12-06 19:43:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 11287. [2021-12-06 19:43:39,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11287 states, 7558 states have (on average 1.3033871394548822) internal successors, (9851), 7817 states have internal predecessors, (9851), 3100 states have call successors, (3100), 607 states have call predecessors, (3100), 628 states have return successors, (3162), 3095 states have call predecessors, (3162), 3099 states have call successors, (3162) [2021-12-06 19:43:39,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11287 states to 11287 states and 16113 transitions. [2021-12-06 19:43:39,255 INFO L78 Accepts]: Start accepts. Automaton has 11287 states and 16113 transitions. Word has length 337 [2021-12-06 19:43:39,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:43:39,255 INFO L470 AbstractCegarLoop]: Abstraction has 11287 states and 16113 transitions. [2021-12-06 19:43:39,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-06 19:43:39,255 INFO L276 IsEmpty]: Start isEmpty. Operand 11287 states and 16113 transitions. [2021-12-06 19:43:39,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-12-06 19:43:39,274 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:43:39,274 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:43:39,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 19:43:39,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 19:43:39,476 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:43:39,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:43:39,478 INFO L85 PathProgramCache]: Analyzing trace with hash -366080573, now seen corresponding path program 1 times [2021-12-06 19:43:39,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:43:39,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350797215] [2021-12-06 19:43:39,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:39,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:43:39,660 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:43:39,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997131384] [2021-12-06 19:43:39,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:39,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:39,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:43:39,661 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:43:39,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d9e41-6705-4f8a-8fe6-f546920841e9/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process