./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:12:06,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:12:06,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:12:06,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:12:06,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:12:06,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:12:06,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:12:06,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:12:06,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:12:06,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:12:06,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:12:06,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:12:06,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:12:06,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:12:06,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:12:06,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:12:06,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:12:06,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:12:06,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:12:06,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:12:06,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:12:06,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:12:06,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:12:06,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:12:06,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:12:06,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:12:06,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:12:06,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:12:06,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:12:06,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:12:06,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:12:06,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:12:06,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:12:06,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:12:06,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:12:06,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:12:06,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:12:06,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:12:06,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:12:06,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:12:06,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:12:06,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:12:06,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:12:06,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:12:06,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:12:06,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:12:06,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:12:06,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:12:06,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:12:06,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:12:06,252 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:12:06,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:12:06,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:12:06,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:12:06,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:12:06,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:12:06,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:12:06,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:12:06,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:12:06,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:12:06,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:12:06,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:12:06,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:12:06,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:12:06,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:12:06,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:12:06,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:12:06,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:12:06,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:12:06,257 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:12:06,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:12:06,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:12:06,258 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_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2022-11-02 21:12:06,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:12:06,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:12:06,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:12:06,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:12:06,594 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:12:06,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-11-02 21:12:06,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/data/10fd7e6c1/2f3164016ed545b194bc14c0a621f3e1/FLAG763565c9a [2022-11-02 21:12:07,626 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:12:07,627 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-11-02 21:12:07,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/data/10fd7e6c1/2f3164016ed545b194bc14c0a621f3e1/FLAG763565c9a [2022-11-02 21:12:08,074 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/data/10fd7e6c1/2f3164016ed545b194bc14c0a621f3e1 [2022-11-02 21:12:08,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:12:08,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:12:08,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:12:08,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:12:08,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:12:08,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:12:08" (1/1) ... [2022-11-02 21:12:08,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7c412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:08, skipping insertion in model container [2022-11-02 21:12:08,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:12:08" (1/1) ... [2022-11-02 21:12:08,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:12:08,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:12:08,785 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-11-02 21:12:08,785 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2022-11-02 21:12:09,269 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_0fd847c7-1390-47bf-aaa3-30c0709b080b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2022-11-02 21:12:10,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:12:10,878 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:12:11,005 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-11-02 21:12:11,006 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2022-11-02 21:12:11,034 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_0fd847c7-1390-47bf-aaa3-30c0709b080b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2022-11-02 21:12:11,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:12:11,466 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:12:11,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11 WrapperNode [2022-11-02 21:12:11,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:12:11,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:12:11,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:12:11,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:12:11,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (1/1) ... [2022-11-02 21:12:11,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (1/1) ... [2022-11-02 21:12:11,839 INFO L138 Inliner]: procedures = 281, calls = 1587, calls flagged for inlining = 160, calls inlined = 157, statements flattened = 4353 [2022-11-02 21:12:11,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:12:11,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:12:11,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:12:11,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:12:11,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (1/1) ... [2022-11-02 21:12:11,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (1/1) ... [2022-11-02 21:12:11,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (1/1) ... [2022-11-02 21:12:11,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (1/1) ... [2022-11-02 21:12:12,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (1/1) ... [2022-11-02 21:12:12,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (1/1) ... [2022-11-02 21:12:12,128 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (1/1) ... [2022-11-02 21:12:12,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (1/1) ... [2022-11-02 21:12:12,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:12:12,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:12:12,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:12:12,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:12:12,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (1/1) ... [2022-11-02 21:12:12,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:12:12,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:12:12,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:12:12,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:12:12,267 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-11-02 21:12:12,268 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-11-02 21:12:12,268 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-02 21:12:12,268 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-02 21:12:12,268 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-02 21:12:12,268 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-02 21:12:12,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 21:12:12,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 21:12:12,269 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-02 21:12:12,269 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-02 21:12:12,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-02 21:12:12,270 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-02 21:12:12,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-02 21:12:12,270 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-02 21:12:12,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-02 21:12:12,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-02 21:12:12,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 21:12:12,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 21:12:12,271 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-11-02 21:12:12,271 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-11-02 21:12:12,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 21:12:12,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 21:12:12,271 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-02 21:12:12,272 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-02 21:12:12,272 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-02 21:12:12,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-02 21:12:12,272 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-02 21:12:12,272 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-02 21:12:12,272 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-02 21:12:12,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-02 21:12:12,273 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-11-02 21:12:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-11-02 21:12:12,273 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-02 21:12:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-02 21:12:12,273 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 21:12:12,274 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 21:12:12,274 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-02 21:12:12,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-02 21:12:12,275 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-02 21:12:12,275 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-02 21:12:12,275 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-02 21:12:12,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-02 21:12:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-02 21:12:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-02 21:12:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-11-02 21:12:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-11-02 21:12:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-02 21:12:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-02 21:12:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-02 21:12:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-02 21:12:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-02 21:12:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-02 21:12:12,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:12:12,279 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-02 21:12:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-02 21:12:12,279 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-02 21:12:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-02 21:12:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 21:12:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-02 21:12:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-02 21:12:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-02 21:12:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-02 21:12:12,281 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-02 21:12:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-02 21:12:12,281 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-02 21:12:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-02 21:12:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-02 21:12:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-02 21:12:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-02 21:12:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-02 21:12:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-02 21:12:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-11-02 21:12:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-11-02 21:12:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-11-02 21:12:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-11-02 21:12:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 21:12:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 21:12:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-11-02 21:12:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-11-02 21:12:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-11-02 21:12:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-11-02 21:12:12,285 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-02 21:12:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-02 21:12:12,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:12:12,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 21:12:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-02 21:12:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-02 21:12:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-02 21:12:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-02 21:12:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-02 21:12:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-02 21:12:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-11-02 21:12:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-11-02 21:12:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-02 21:12:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-02 21:12:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-02 21:12:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-02 21:12:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-11-02 21:12:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-11-02 21:12:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-02 21:12:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-02 21:12:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 21:12:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 21:12:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-02 21:12:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-02 21:12:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-11-02 21:12:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-11-02 21:12:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:12:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-11-02 21:12:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-11-02 21:12:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-02 21:12:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-02 21:12:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-02 21:12:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-02 21:12:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-02 21:12:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-02 21:12:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-02 21:12:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-02 21:12:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-02 21:12:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-02 21:12:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-02 21:12:12,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-02 21:12:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 21:12:12,301 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 21:12:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-02 21:12:12,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-02 21:12:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-02 21:12:12,307 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-02 21:12:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:12:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-02 21:12:12,307 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-02 21:12:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-11-02 21:12:12,307 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-11-02 21:12:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 21:12:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 21:12:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-11-02 21:12:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-11-02 21:12:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2022-11-02 21:12:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2022-11-02 21:12:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:12:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-11-02 21:12:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-11-02 21:12:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:12:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-11-02 21:12:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-11-02 21:12:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:12:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-02 21:12:12,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-02 21:12:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-02 21:12:12,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-02 21:12:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-11-02 21:12:12,310 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-11-02 21:12:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-02 21:12:12,310 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-02 21:12:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-11-02 21:12:12,311 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-11-02 21:12:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-02 21:12:12,311 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-02 21:12:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2022-11-02 21:12:12,311 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2022-11-02 21:12:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-02 21:12:12,311 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-02 21:12:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-02 21:12:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-02 21:12:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:12:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-02 21:12:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-02 21:12:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:12:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:12:13,260 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:12:13,263 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:12:13,636 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 21:12:17,061 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:12:17,079 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:12:17,079 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:12:17,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:12:17 BoogieIcfgContainer [2022-11-02 21:12:17,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:12:17,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:12:17,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:12:17,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:12:17,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:12:08" (1/3) ... [2022-11-02 21:12:17,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f09df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:12:17, skipping insertion in model container [2022-11-02 21:12:17,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:11" (2/3) ... [2022-11-02 21:12:17,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f09df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:12:17, skipping insertion in model container [2022-11-02 21:12:17,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:12:17" (3/3) ... [2022-11-02 21:12:17,094 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-11-02 21:12:17,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:12:17,115 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:12:17,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:12:17,213 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43c08a06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:12:17,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:12:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 1685 states, 1169 states have (on average 1.3250641573994868) internal successors, (1549), 1196 states have internal predecessors, (1549), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) [2022-11-02 21:12:17,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-02 21:12:17,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:17,263 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:17,263 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:17,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:17,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1357541251, now seen corresponding path program 1 times [2022-11-02 21:12:17,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:17,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228550066] [2022-11-02 21:12:17,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:17,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:12:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:12:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:12:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:12:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:12:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:12:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-02 21:12:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 21:12:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 21:12:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 21:12:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,483 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-02 21:12:18,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:18,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228550066] [2022-11-02 21:12:18,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228550066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:18,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:18,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:18,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255535166] [2022-11-02 21:12:18,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:18,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:18,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:18,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:18,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:18,540 INFO L87 Difference]: Start difference. First operand has 1685 states, 1169 states have (on average 1.3250641573994868) internal successors, (1549), 1196 states have internal predecessors, (1549), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 21:12:29,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:29,401 INFO L93 Difference]: Finished difference Result 5294 states and 7735 transitions. [2022-11-02 21:12:29,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:12:29,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2022-11-02 21:12:29,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:29,448 INFO L225 Difference]: With dead ends: 5294 [2022-11-02 21:12:29,448 INFO L226 Difference]: Without dead ends: 3576 [2022-11-02 21:12:29,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:12:29,467 INFO L413 NwaCegarLoop]: 2474 mSDtfsCounter, 4378 mSDsluCounter, 5167 mSDsCounter, 0 mSdLazyCounter, 6909 mSolverCounterSat, 2889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4689 SdHoareTripleChecker+Valid, 7641 SdHoareTripleChecker+Invalid, 9798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2889 IncrementalHoareTripleChecker+Valid, 6909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:29,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4689 Valid, 7641 Invalid, 9798 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2889 Valid, 6909 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-11-02 21:12:29,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2022-11-02 21:12:29,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3307. [2022-11-02 21:12:29,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 2300 states have (on average 1.3139130434782609) internal successors, (3022), 2340 states have internal predecessors, (3022), 853 states have call successors, (853), 154 states have call predecessors, (853), 153 states have return successors, (852), 840 states have call predecessors, (852), 852 states have call successors, (852) [2022-11-02 21:12:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 4727 transitions. [2022-11-02 21:12:29,785 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 4727 transitions. Word has length 92 [2022-11-02 21:12:29,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:29,790 INFO L495 AbstractCegarLoop]: Abstraction has 3307 states and 4727 transitions. [2022-11-02 21:12:29,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 21:12:29,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 4727 transitions. [2022-11-02 21:12:29,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-02 21:12:29,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:29,808 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:29,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:12:29,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:29,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:29,809 INFO L85 PathProgramCache]: Analyzing trace with hash -454809615, now seen corresponding path program 1 times [2022-11-02 21:12:29,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:29,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354525270] [2022-11-02 21:12:29,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:29,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:12:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:12:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:12:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:12:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:12:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:12:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-02 21:12:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 21:12:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-02 21:12:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 21:12:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-02 21:12:30,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:30,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354525270] [2022-11-02 21:12:30,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354525270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:30,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:30,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:30,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445023974] [2022-11-02 21:12:30,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:30,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:30,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:30,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:30,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:30,371 INFO L87 Difference]: Start difference. First operand 3307 states and 4727 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 21:12:40,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:40,538 INFO L93 Difference]: Finished difference Result 10419 states and 14995 transitions. [2022-11-02 21:12:40,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:12:40,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2022-11-02 21:12:40,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:40,586 INFO L225 Difference]: With dead ends: 10419 [2022-11-02 21:12:40,586 INFO L226 Difference]: Without dead ends: 7129 [2022-11-02 21:12:40,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:12:40,611 INFO L413 NwaCegarLoop]: 2393 mSDtfsCounter, 4361 mSDsluCounter, 4987 mSDsCounter, 0 mSdLazyCounter, 6825 mSolverCounterSat, 2872 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4672 SdHoareTripleChecker+Valid, 7380 SdHoareTripleChecker+Invalid, 9697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2872 IncrementalHoareTripleChecker+Valid, 6825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:40,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4672 Valid, 7380 Invalid, 9697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2872 Valid, 6825 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-02 21:12:40,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2022-11-02 21:12:41,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 6596. [2022-11-02 21:12:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6596 states, 4590 states have (on average 1.3132897603485838) internal successors, (6028), 4669 states have internal predecessors, (6028), 1698 states have call successors, (1698), 308 states have call predecessors, (1698), 307 states have return successors, (1697), 1674 states have call predecessors, (1697), 1697 states have call successors, (1697) [2022-11-02 21:12:41,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6596 states to 6596 states and 9423 transitions. [2022-11-02 21:12:41,114 INFO L78 Accepts]: Start accepts. Automaton has 6596 states and 9423 transitions. Word has length 93 [2022-11-02 21:12:41,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:41,116 INFO L495 AbstractCegarLoop]: Abstraction has 6596 states and 9423 transitions. [2022-11-02 21:12:41,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 21:12:41,117 INFO L276 IsEmpty]: Start isEmpty. Operand 6596 states and 9423 transitions. [2022-11-02 21:12:41,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-02 21:12:41,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:41,124 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:41,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:12:41,124 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:41,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:41,125 INFO L85 PathProgramCache]: Analyzing trace with hash 658135424, now seen corresponding path program 1 times [2022-11-02 21:12:41,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:41,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592708876] [2022-11-02 21:12:41,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:41,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:12:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:12:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:12:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:12:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:12:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:12:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-02 21:12:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-02 21:12:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:12:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-02 21:12:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,634 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-02 21:12:41,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:41,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592708876] [2022-11-02 21:12:41,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592708876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:41,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:41,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:41,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012080330] [2022-11-02 21:12:41,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:41,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:41,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:41,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:41,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:41,637 INFO L87 Difference]: Start difference. First operand 6596 states and 9423 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 21:12:50,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:50,700 INFO L93 Difference]: Finished difference Result 20821 states and 29933 transitions. [2022-11-02 21:12:50,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:12:50,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2022-11-02 21:12:50,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:50,799 INFO L225 Difference]: With dead ends: 20821 [2022-11-02 21:12:50,799 INFO L226 Difference]: Without dead ends: 14242 [2022-11-02 21:12:50,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:12:50,848 INFO L413 NwaCegarLoop]: 2370 mSDtfsCounter, 4364 mSDsluCounter, 4939 mSDsCounter, 0 mSdLazyCounter, 6809 mSolverCounterSat, 2898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4673 SdHoareTripleChecker+Valid, 7309 SdHoareTripleChecker+Invalid, 9707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2898 IncrementalHoareTripleChecker+Valid, 6809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:50,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4673 Valid, 7309 Invalid, 9707 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2898 Valid, 6809 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-02 21:12:50,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14242 states. [2022-11-02 21:12:51,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14242 to 13179. [2022-11-02 21:12:51,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13179 states, 9175 states have (on average 1.3126975476839238) internal successors, (12044), 9331 states have internal predecessors, (12044), 3387 states have call successors, (3387), 617 states have call predecessors, (3387), 616 states have return successors, (3386), 3342 states have call predecessors, (3386), 3386 states have call successors, (3386) [2022-11-02 21:12:51,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13179 states to 13179 states and 18817 transitions. [2022-11-02 21:12:51,888 INFO L78 Accepts]: Start accepts. Automaton has 13179 states and 18817 transitions. Word has length 94 [2022-11-02 21:12:51,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:51,890 INFO L495 AbstractCegarLoop]: Abstraction has 13179 states and 18817 transitions. [2022-11-02 21:12:51,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 21:12:51,891 INFO L276 IsEmpty]: Start isEmpty. Operand 13179 states and 18817 transitions. [2022-11-02 21:12:51,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-02 21:12:51,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:51,901 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:51,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:12:51,902 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:51,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:51,902 INFO L85 PathProgramCache]: Analyzing trace with hash -302238636, now seen corresponding path program 1 times [2022-11-02 21:12:51,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:51,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228814060] [2022-11-02 21:12:51,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:51,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:12:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:12:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:12:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:12:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:12:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:12:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 21:12:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-02 21:12:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 21:12:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 21:12:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,458 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-02 21:12:52,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:52,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228814060] [2022-11-02 21:12:52,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228814060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:52,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:52,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:52,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689579213] [2022-11-02 21:12:52,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:52,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:52,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:52,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:52,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:52,461 INFO L87 Difference]: Start difference. First operand 13179 states and 18817 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 21:13:01,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:01,966 INFO L93 Difference]: Finished difference Result 41620 states and 59781 transitions. [2022-11-02 21:13:01,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:13:01,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2022-11-02 21:13:01,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:02,166 INFO L225 Difference]: With dead ends: 41620 [2022-11-02 21:13:02,166 INFO L226 Difference]: Without dead ends: 28458 [2022-11-02 21:13:02,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:13:02,255 INFO L413 NwaCegarLoop]: 2362 mSDtfsCounter, 4372 mSDsluCounter, 4922 mSDsCounter, 0 mSdLazyCounter, 6797 mSolverCounterSat, 2900 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4683 SdHoareTripleChecker+Valid, 7284 SdHoareTripleChecker+Invalid, 9697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2900 IncrementalHoareTripleChecker+Valid, 6797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:02,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4683 Valid, 7284 Invalid, 9697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2900 Valid, 6797 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-02 21:13:02,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28458 states. [2022-11-02 21:13:03,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28458 to 26343. [2022-11-02 21:13:03,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26343 states, 18345 states have (on average 1.3120741346415916) internal successors, (24070), 18653 states have internal predecessors, (24070), 6762 states have call successors, (6762), 1236 states have call predecessors, (6762), 1235 states have return successors, (6761), 6677 states have call predecessors, (6761), 6761 states have call successors, (6761) [2022-11-02 21:13:04,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26343 states to 26343 states and 37593 transitions. [2022-11-02 21:13:04,181 INFO L78 Accepts]: Start accepts. Automaton has 26343 states and 37593 transitions. Word has length 95 [2022-11-02 21:13:04,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:04,182 INFO L495 AbstractCegarLoop]: Abstraction has 26343 states and 37593 transitions. [2022-11-02 21:13:04,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 21:13:04,182 INFO L276 IsEmpty]: Start isEmpty. Operand 26343 states and 37593 transitions. [2022-11-02 21:13:04,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-02 21:13:04,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:04,192 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:04,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:13:04,192 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:13:04,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:04,193 INFO L85 PathProgramCache]: Analyzing trace with hash -320209748, now seen corresponding path program 1 times [2022-11-02 21:13:04,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:04,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695738534] [2022-11-02 21:13:04,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:04,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:13:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:13:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:13:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:13:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:13:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:13:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-02 21:13:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:13:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 21:13:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-02 21:13:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 21:13:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-02 21:13:04,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:04,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695738534] [2022-11-02 21:13:04,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695738534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:04,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:04,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:13:04,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280874205] [2022-11-02 21:13:04,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:04,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:13:04,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:04,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:13:04,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:04,455 INFO L87 Difference]: Start difference. First operand 26343 states and 37593 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 21:13:12,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:12,172 INFO L93 Difference]: Finished difference Result 76739 states and 109734 transitions. [2022-11-02 21:13:12,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:13:12,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2022-11-02 21:13:12,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:12,478 INFO L225 Difference]: With dead ends: 76739 [2022-11-02 21:13:12,479 INFO L226 Difference]: Without dead ends: 50413 [2022-11-02 21:13:12,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:13:12,608 INFO L413 NwaCegarLoop]: 2300 mSDtfsCounter, 3791 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 3136 mSolverCounterSat, 2590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4025 SdHoareTripleChecker+Valid, 4885 SdHoareTripleChecker+Invalid, 5726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2590 IncrementalHoareTripleChecker+Valid, 3136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:12,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4025 Valid, 4885 Invalid, 5726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2590 Valid, 3136 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-02 21:13:12,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50413 states. [2022-11-02 21:13:15,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50413 to 46845. [2022-11-02 21:13:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46845 states, 32715 states have (on average 1.3081461103469356) internal successors, (42796), 33313 states have internal predecessors, (42796), 11823 states have call successors, (11823), 2323 states have call predecessors, (11823), 2306 states have return successors, (11822), 11622 states have call predecessors, (11822), 11822 states have call successors, (11822) [2022-11-02 21:13:16,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46845 states to 46845 states and 66441 transitions. [2022-11-02 21:13:16,082 INFO L78 Accepts]: Start accepts. Automaton has 46845 states and 66441 transitions. Word has length 107 [2022-11-02 21:13:16,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:16,083 INFO L495 AbstractCegarLoop]: Abstraction has 46845 states and 66441 transitions. [2022-11-02 21:13:16,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 21:13:16,084 INFO L276 IsEmpty]: Start isEmpty. Operand 46845 states and 66441 transitions. [2022-11-02 21:13:16,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-02 21:13:16,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:16,088 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:16,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:13:16,088 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:13:16,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1559019951, now seen corresponding path program 1 times [2022-11-02 21:13:16,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:16,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438646957] [2022-11-02 21:13:16,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:13:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:13:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:13:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:13:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:13:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:13:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:13:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 21:13:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-02 21:13:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-02 21:13:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 21:13:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-02 21:13:16,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:16,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438646957] [2022-11-02 21:13:16,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438646957] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:13:16,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072043588] [2022-11-02 21:13:16,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:16,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:13:16,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:13:16,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:13:16,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:13:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:17,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1951 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:13:17,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-02 21:13:17,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:17,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072043588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:17,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:13:17,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-11-02 21:13:17,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226035906] [2022-11-02 21:13:17,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:17,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:13:17,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:17,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:13:17,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:13:17,927 INFO L87 Difference]: Start difference. First operand 46845 states and 66441 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 21:13:21,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:21,338 INFO L93 Difference]: Finished difference Result 117365 states and 166419 transitions. [2022-11-02 21:13:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:21,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2022-11-02 21:13:21,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:21,838 INFO L225 Difference]: With dead ends: 117365 [2022-11-02 21:13:21,838 INFO L226 Difference]: Without dead ends: 70537 [2022-11-02 21:13:22,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2022-11-02 21:13:22,169 INFO L413 NwaCegarLoop]: 3048 mSDtfsCounter, 2399 mSDsluCounter, 14537 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 17585 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:22,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 17585 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:22,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70537 states. [2022-11-02 21:13:25,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70537 to 70242. [2022-11-02 21:13:26,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70242 states, 49070 states have (on average 1.3085592011412268) internal successors, (64211), 49986 states have internal predecessors, (64211), 17703 states have call successors, (17703), 3477 states have call predecessors, (17703), 3468 states have return successors, (17742), 17398 states have call predecessors, (17742), 17702 states have call successors, (17742) [2022-11-02 21:13:26,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70242 states to 70242 states and 99656 transitions. [2022-11-02 21:13:26,836 INFO L78 Accepts]: Start accepts. Automaton has 70242 states and 99656 transitions. Word has length 105 [2022-11-02 21:13:26,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:26,837 INFO L495 AbstractCegarLoop]: Abstraction has 70242 states and 99656 transitions. [2022-11-02 21:13:26,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 21:13:26,837 INFO L276 IsEmpty]: Start isEmpty. Operand 70242 states and 99656 transitions. [2022-11-02 21:13:26,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-02 21:13:26,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:26,845 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:26,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:27,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:13:27,061 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:13:27,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:27,062 INFO L85 PathProgramCache]: Analyzing trace with hash 121846562, now seen corresponding path program 1 times [2022-11-02 21:13:27,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:27,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407565440] [2022-11-02 21:13:27,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:27,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:13:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:13:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:13:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:13:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:13:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:13:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 21:13:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-02 21:13:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-02 21:13:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 21:13:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-02 21:13:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,962 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-02 21:13:27,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:27,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407565440] [2022-11-02 21:13:27,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407565440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:13:27,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784029773] [2022-11-02 21:13:27,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:27,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:13:27,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:13:27,965 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:13:27,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:13:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:28,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 1953 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:13:28,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-02 21:13:28,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:28,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784029773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:28,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:13:28,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-11-02 21:13:28,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798679985] [2022-11-02 21:13:28,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:28,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:13:28,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:28,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:13:28,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:28,953 INFO L87 Difference]: Start difference. First operand 70242 states and 99656 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 21:13:33,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:33,189 INFO L93 Difference]: Finished difference Result 164265 states and 232941 transitions. [2022-11-02 21:13:33,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:33,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2022-11-02 21:13:33,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:33,726 INFO L225 Difference]: With dead ends: 164265 [2022-11-02 21:13:33,726 INFO L226 Difference]: Without dead ends: 94040 [2022-11-02 21:13:34,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:13:34,246 INFO L413 NwaCegarLoop]: 3136 mSDtfsCounter, 2399 mSDsluCounter, 14877 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 18013 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:34,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 18013 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:34,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94040 states. [2022-11-02 21:13:38,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94040 to 93703. [2022-11-02 21:13:38,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93703 states, 65465 states have (on average 1.3085771022683876) internal successors, (85666), 66731 states have internal predecessors, (85666), 23583 states have call successors, (23583), 4631 states have call predecessors, (23583), 4654 states have return successors, (23686), 23166 states have call predecessors, (23686), 23582 states have call successors, (23686) [2022-11-02 21:13:39,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93703 states to 93703 states and 132935 transitions. [2022-11-02 21:13:39,615 INFO L78 Accepts]: Start accepts. Automaton has 93703 states and 132935 transitions. Word has length 106 [2022-11-02 21:13:39,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:39,620 INFO L495 AbstractCegarLoop]: Abstraction has 93703 states and 132935 transitions. [2022-11-02 21:13:39,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 21:13:39,621 INFO L276 IsEmpty]: Start isEmpty. Operand 93703 states and 132935 transitions. [2022-11-02 21:13:39,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-02 21:13:39,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:39,645 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:39,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:39,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 21:13:39,846 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:13:39,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:39,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1878663608, now seen corresponding path program 1 times [2022-11-02 21:13:39,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:39,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370538589] [2022-11-02 21:13:39,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:39,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:13:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:13:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:13:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:13:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:13:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:13:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 21:13:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:13:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 21:13:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-02 21:13:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 21:13:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,449 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-02 21:13:40,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:40,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370538589] [2022-11-02 21:13:40,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370538589] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:13:40,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151673447] [2022-11-02 21:13:40,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:40,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:13:40,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:13:40,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:13:40,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd847c7-1390-47bf-aaa3-30c0709b080b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:13:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:41,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1955 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:13:41,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-02 21:13:41,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:41,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151673447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:41,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:13:41,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-11-02 21:13:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556779642] [2022-11-02 21:13:41,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:41,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:13:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:41,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:13:41,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:41,447 INFO L87 Difference]: Start difference. First operand 93703 states and 132935 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11)