./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 637c8df7181ab241b9f0175bf03e24d65a8b4c37f1a710a25ab16dc44ce41188 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:34:40,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:34:40,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:34:40,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:34:40,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:34:40,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:34:40,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:34:40,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:34:40,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:34:40,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:34:40,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:34:40,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:34:40,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:34:40,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:34:40,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:34:40,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:34:40,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:34:40,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:34:40,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:34:40,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:34:40,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:34:40,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:34:40,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:34:40,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:34:40,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:34:40,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:34:40,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:34:40,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:34:40,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:34:40,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:34:40,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:34:40,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:34:40,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:34:40,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:34:40,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:34:40,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:34:40,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:34:40,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:34:40,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:34:40,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:34:40,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:34:40,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:34:40,293 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:34:40,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:34:40,295 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:34:40,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:34:40,296 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:34:40,296 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:34:40,296 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:34:40,297 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:34:40,297 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:34:40,297 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:34:40,298 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:34:40,298 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:34:40,298 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:34:40,299 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:34:40,299 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:34:40,299 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:34:40,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:34:40,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:34:40,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:34:40,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:34:40,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:34:40,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:34:40,302 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:34:40,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:34:40,303 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:34:40,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:34:40,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:34:40,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:34:40,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:34:40,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:34:40,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:34:40,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:34:40,305 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:34:40,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:34:40,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:34:40,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:34:40,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:34:40,307 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 637c8df7181ab241b9f0175bf03e24d65a8b4c37f1a710a25ab16dc44ce41188 [2021-11-12 22:34:40,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:34:40,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:34:40,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:34:40,692 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:34:40,693 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:34:40,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i [2021-11-12 22:34:40,791 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/data/a60118596/d348db9cb84149dba4b08521df38c726/FLAGc532c5552 [2021-11-12 22:34:42,384 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:34:42,385 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i [2021-11-12 22:34:42,496 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/data/a60118596/d348db9cb84149dba4b08521df38c726/FLAGc532c5552 [2021-11-12 22:34:42,758 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/data/a60118596/d348db9cb84149dba4b08521df38c726 [2021-11-12 22:34:42,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:34:42,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:34:42,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:34:42,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:34:42,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:34:42,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:34:42" (1/1) ... [2021-11-12 22:34:42,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637d066b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:42, skipping insertion in model container [2021-11-12 22:34:42,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:34:42" (1/1) ... [2021-11-12 22:34:42,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:34:43,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:34:48,696 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:34:48,711 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:34:48,730 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:34:48,735 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:34:48,737 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:34:48,738 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:34:49,612 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:34:50,197 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:34:50,208 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:34:50,617 WARN L228 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_12c51694-fd72-417c-9256-1ab79edcbe05/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i[576599,576612] [2021-11-12 22:34:51,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:34:51,209 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:34:51,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7458df63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:51, skipping insertion in model container [2021-11-12 22:34:51,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:34:51,211 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:34:51,214 INFO L158 Benchmark]: Toolchain (without parser) took 8448.92ms. Allocated memory was 86.0MB in the beginning and 201.3MB in the end (delta: 115.3MB). Free memory was 40.2MB in the beginning and 94.8MB in the end (delta: -54.6MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2021-11-12 22:34:51,215 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 86.0MB. Free memory was 65.5MB in the beginning and 65.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:34:51,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 8445.83ms. Allocated memory was 86.0MB in the beginning and 201.3MB in the end (delta: 115.3MB). Free memory was 39.9MB in the beginning and 94.8MB in the end (delta: -54.9MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2021-11-12 22:34:51,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 86.0MB. Free memory was 65.5MB in the beginning and 65.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 8445.83ms. Allocated memory was 86.0MB in the beginning and 201.3MB in the end (delta: 115.3MB). Free memory was 39.9MB in the beginning and 94.8MB in the end (delta: -54.9MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6927]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 637c8df7181ab241b9f0175bf03e24d65a8b4c37f1a710a25ab16dc44ce41188 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:34:54,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:34:54,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:34:54,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:34:54,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:34:54,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:34:54,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:34:54,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:34:54,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:34:54,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:34:54,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:34:54,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:34:54,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:34:54,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:34:54,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:34:54,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:34:54,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:34:54,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:34:54,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:34:54,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:34:54,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:34:54,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:34:54,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:34:54,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:34:54,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:34:54,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:34:54,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:34:54,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:34:54,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:34:54,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:34:54,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:34:54,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:34:54,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:34:54,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:34:54,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:34:54,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:34:54,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:34:54,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:34:54,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:34:54,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:34:54,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:34:54,198 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:34:54,255 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:34:54,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:34:54,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:34:54,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:34:54,258 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:34:54,259 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:34:54,259 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:34:54,259 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:34:54,260 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:34:54,260 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:34:54,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:34:54,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:34:54,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:34:54,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:34:54,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:34:54,265 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:34:54,265 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:34:54,265 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:34:54,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:34:54,266 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:34:54,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:34:54,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:34:54,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:34:54,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:34:54,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:34:54,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:34:54,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:34:54,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:34:54,269 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:34:54,269 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:34:54,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:34:54,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:34:54,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:34:54,270 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 637c8df7181ab241b9f0175bf03e24d65a8b4c37f1a710a25ab16dc44ce41188 [2021-11-12 22:34:54,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:34:54,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:34:54,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:34:54,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:34:54,813 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:34:54,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i [2021-11-12 22:34:54,905 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/data/8844c49ae/a1c6968065f0431d8754a4cd78a10f17/FLAG0b30536b3 [2021-11-12 22:34:56,574 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:34:56,576 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i [2021-11-12 22:34:56,681 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/data/8844c49ae/a1c6968065f0431d8754a4cd78a10f17/FLAG0b30536b3 [2021-11-12 22:34:56,989 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/data/8844c49ae/a1c6968065f0431d8754a4cd78a10f17 [2021-11-12 22:34:56,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:34:56,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:34:57,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:34:57,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:34:57,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:34:57,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:34:56" (1/1) ... [2021-11-12 22:34:57,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629b2ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:57, skipping insertion in model container [2021-11-12 22:34:57,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:34:56" (1/1) ... [2021-11-12 22:34:57,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:34:57,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:35:05,714 WARN L228 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_12c51694-fd72-417c-9256-1ab79edcbe05/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i[576599,576612] [2021-11-12 22:35:06,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:06,346 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:35:06,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:35:07,343 WARN L228 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_12c51694-fd72-417c-9256-1ab79edcbe05/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i[576599,576612] [2021-11-12 22:35:07,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:07,453 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:35:08,408 WARN L228 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_12c51694-fd72-417c-9256-1ab79edcbe05/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i[576599,576612] [2021-11-12 22:35:08,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:09,211 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:35:09,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09 WrapperNode [2021-11-12 22:35:09,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:35:09,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:35:09,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:35:09,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:35:09,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09" (1/1) ... [2021-11-12 22:35:09,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09" (1/1) ... [2021-11-12 22:35:10,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:35:10,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:35:10,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:35:10,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:35:10,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09" (1/1) ... [2021-11-12 22:35:10,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09" (1/1) ... [2021-11-12 22:35:10,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09" (1/1) ... [2021-11-12 22:35:10,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09" (1/1) ... [2021-11-12 22:35:11,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09" (1/1) ... [2021-11-12 22:35:11,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09" (1/1) ... [2021-11-12 22:35:11,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09" (1/1) ... [2021-11-12 22:35:11,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:35:11,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:35:11,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:35:11,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:35:11,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09" (1/1) ... [2021-11-12 22:35:11,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:35:11,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:35:11,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:35:11,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:35:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-12 22:35:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-12 22:35:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_resolve_flow_ctrl [2021-11-12 22:35:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_resolve_flow_ctrl [2021-11-12 22:35:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure load_rv2p_fw [2021-11-12 22:35:11,539 INFO L138 BoogieDeclarations]: Found implementation of procedure load_rv2p_fw [2021-11-12 22:35:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_bmsr1 [2021-11-12 22:35:11,539 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_bmsr1 [2021-11-12 22:35:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-12 22:35:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-12 22:35:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-12 22:35:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-12 22:35:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_int [2021-11-12 22:35:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_int [2021-11-12 22:35:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 22:35:11,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 22:35:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:35:11,541 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:35:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-12 22:35:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-12 22:35:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_rxbd_rings [2021-11-12 22:35:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_rxbd_rings [2021-11-12 22:35:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_read_dword [2021-11-12 22:35:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_read_dword [2021-11-12 22:35:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-12 22:35:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-12 22:35:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure get_l2_fhdr [2021-11-12 22:35:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure get_l2_fhdr [2021-11-12 22:35:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_cnic_stop [2021-11-12 22:35:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_cnic_stop [2021-11-12 22:35:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:35:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:35:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_netif_start [2021-11-12 22:35:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_netif_start [2021-11-12 22:35:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_int_mode [2021-11-12 22:35:11,545 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_int_mode [2021-11-12 22:35:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-12 22:35:11,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-12 22:35:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-12 22:35:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-12 22:35:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_bmsr1 [2021-11-12 22:35:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_bmsr1 [2021-11-12 22:35:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_forced_2g5 [2021-11-12 22:35:11,547 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_forced_2g5 [2021-11-12 22:35:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-12 22:35:11,547 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-12 22:35:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_xceiver_str [2021-11-12 22:35:11,548 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_xceiver_str [2021-11-12 22:35:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_rx_context [2021-11-12 22:35:11,548 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_rx_context [2021-11-12 22:35:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 22:35:11,548 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 22:35:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-12 22:35:11,549 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-12 22:35:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-12 22:35:11,549 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-12 22:35:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_resume [2021-11-12 22:35:11,550 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_resume [2021-11-12 22:35:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-11-12 22:35:11,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-11-12 22:35:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_ctx_wr [2021-11-12 22:35:11,551 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_ctx_wr [2021-11-12 22:35:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-12 22:35:11,551 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-12 22:35:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 22:35:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 22:35:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_remote_phy [2021-11-12 22:35:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_remote_phy [2021-11-12 22:35:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_rx_data [2021-11-12 22:35:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_rx_data [2021-11-12 22:35:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_phy [2021-11-12 22:35:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_phy [2021-11-12 22:35:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-11-12 22:35:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-11-12 22:35:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-12 22:35:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 22:35:11,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 22:35:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 22:35:11,554 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 22:35:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-12 22:35:11,555 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-12 22:35:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 22:35:11,555 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 22:35:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-12 22:35:11,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-12 22:35:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:35:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_napi [2021-11-12 22:35:11,556 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_napi [2021-11-12 22:35:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:35:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:35:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:35:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_read_phy [2021-11-12 22:35:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_read_phy [2021-11-12 22:35:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-12 22:35:11,558 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-12 22:35:11,558 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_request_irq [2021-11-12 22:35:11,558 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_request_irq [2021-11-12 22:35:11,558 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-12 22:35:11,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-12 22:35:11,559 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reg_wr_ind [2021-11-12 22:35:11,559 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reg_wr_ind [2021-11-12 22:35:11,559 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-12 22:35:11,559 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-12 22:35:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:35:11,560 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:35:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 22:35:11,560 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 22:35:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-12 22:35:11,561 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-12 22:35:11,561 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-12 22:35:11,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-12 22:35:11,561 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-11-12 22:35:11,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-11-12 22:35:11,562 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_rx_mode [2021-11-12 22:35:11,562 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_rx_mode [2021-11-12 22:35:11,562 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_intr [2021-11-12 22:35:11,562 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_intr [2021-11-12 22:35:11,563 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 22:35:11,563 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 22:35:11,567 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_nic [2021-11-12 22:35:11,567 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_nic [2021-11-12 22:35:11,567 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-12 22:35:11,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-12 22:35:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_wol [2021-11-12 22:35:11,575 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_wol [2021-11-12 22:35:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_mac_addr [2021-11-12 22:35:11,575 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_mac_addr [2021-11-12 22:35:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2021-11-12 22:35:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2021-11-12 22:35:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_nic [2021-11-12 22:35:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_nic [2021-11-12 22:35:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2021-11-12 22:35:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2021-11-12 22:35:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_msi [2021-11-12 22:35:11,577 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_msi [2021-11-12 22:35:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 22:35:11,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 22:35:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 22:35:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 22:35:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_io_error_detected [2021-11-12 22:35:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_io_error_detected [2021-11-12 22:35:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-12 22:35:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-12 22:35:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:35:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:35:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_skbs [2021-11-12 22:35:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_skbs [2021-11-12 22:35:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_channels [2021-11-12 22:35:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_channels [2021-11-12 22:35:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure __bnx2_free_irq [2021-11-12 22:35:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __bnx2_free_irq [2021-11-12 22:35:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_and_enable_2g5 [2021-11-12 22:35:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_and_enable_2g5 [2021-11-12 22:35:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-12 22:35:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-12 22:35:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-12 22:35:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-12 22:35:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_msix_tbl [2021-11-12 22:35:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_msix_tbl [2021-11-12 22:35:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_int_sync [2021-11-12 22:35:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_int_sync [2021-11-12 22:35:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-12 22:35:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-12 22:35:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_chip [2021-11-12 22:35:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_chip [2021-11-12 22:35:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_del_napi [2021-11-12 22:35:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_del_napi [2021-11-12 22:35:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-12 22:35:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-12 22:35:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_settings [2021-11-12 22:35:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_settings [2021-11-12 22:35:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 22:35:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 22:35:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-11-12 22:35:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-11-12 22:35:11,585 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 22:35:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 22:35:11,585 INFO L130 BoogieDeclarations]: Found specification of procedure check_mips_fw_entry [2021-11-12 22:35:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mips_fw_entry [2021-11-12 22:35:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_cnic_start [2021-11-12 22:35:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_cnic_start [2021-11-12 22:35:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shmem_rd [2021-11-12 22:35:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shmem_rd [2021-11-12 22:35:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-12 22:35:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-12 22:35:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_mac_link [2021-11-12 22:35:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_mac_link [2021-11-12 22:35:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:35:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2021-11-12 22:35:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2021-11-12 22:35:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-12 22:35:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-12 22:35:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_napi_enable [2021-11-12 22:35:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_napi_enable [2021-11-12 22:35:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 22:35:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 22:35:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:35:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-12 22:35:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-12 22:35:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 22:35:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:35:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_wol [2021-11-12 22:35:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_wol [2021-11-12 22:35:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:35:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-11-12 22:35:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-11-12 22:35:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:35:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_pauseparam [2021-11-12 22:35:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_pauseparam [2021-11-12 22:35:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-12 22:35:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-12 22:35:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_ioctl [2021-11-12 22:35:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_ioctl [2021-11-12 22:35:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_tx_timeout [2021-11-12 22:35:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_tx_timeout [2021-11-12 22:35:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_one [2021-11-12 22:35:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_one [2021-11-12 22:35:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 22:35:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 22:35:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 22:35:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 22:35:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure pci_vpd_find_info_keyword [2021-11-12 22:35:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_vpd_find_info_keyword [2021-11-12 22:35:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-11-12 22:35:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-11-12 22:35:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_acquire_nvram_lock [2021-11-12 22:35:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_acquire_nvram_lock [2021-11-12 22:35:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-12 22:35:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-12 22:35:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-12 22:35:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-12 22:35:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2021-11-12 22:35:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2021-11-12 22:35:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-11-12 22:35:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-11-12 22:35:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-12 22:35:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-12 22:35:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_nvram_access [2021-11-12 22:35:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_nvram_access [2021-11-12 22:35:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-12 22:35:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-12 22:35:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-12 22:35:11,602 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-12 22:35:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure check_fw_section [2021-11-12 22:35:11,603 INFO L138 BoogieDeclarations]: Found implementation of procedure check_fw_section [2021-11-12 22:35:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_settings [2021-11-12 22:35:11,604 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_settings [2021-11-12 22:35:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:35:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-11-12 22:35:11,605 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-11-12 22:35:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_run_loopback [2021-11-12 22:35:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_run_loopback [2021-11-12 22:35:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-12 22:35:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-12 22:35:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_napi_disable [2021-11-12 22:35:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_napi_disable [2021-11-12 22:35:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:35:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:35:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-12 22:35:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-12 22:35:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-12 22:35:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-12 22:35:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:35:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_write_dword [2021-11-12 22:35:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_write_dword [2021-11-12 22:35:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-12 22:35:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-12 22:35:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:35:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_task [2021-11-12 22:35:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_task [2021-11-12 22:35:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:35:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:35:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:35:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:35:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:35:11,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:35:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_link [2021-11-12 22:35:11,614 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_link [2021-11-12 22:35:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-12 22:35:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-12 22:35:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_int [2021-11-12 22:35:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_int [2021-11-12 22:35:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 22:35:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 22:35:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-12 22:35:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-12 22:35:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-12 22:35:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-12 22:35:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-12 22:35:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-12 22:35:11,617 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-12 22:35:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-12 22:35:11,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-12 22:35:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-11-12 22:35:11,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-11-12 22:35:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_nvram_access [2021-11-12 22:35:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_nvram_access [2021-11-12 22:35:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_mem [2021-11-12 22:35:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_mem [2021-11-12 22:35:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-12 22:35:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-12 22:35:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-12 22:35:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-12 22:35:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:35:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:35:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:35:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:35:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_release_nvram_lock [2021-11-12 22:35:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_release_nvram_lock [2021-11-12 22:35:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-11-12 22:35:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-11-12 22:35:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-12 22:35:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-12 22:35:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_has_work [2021-11-12 22:35:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_has_work [2021-11-12 22:35:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_has_fast_work [2021-11-12 22:35:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_has_fast_work [2021-11-12 22:35:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-12 22:35:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-12 22:35:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_tx_avail [2021-11-12 22:35:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_tx_avail [2021-11-12 22:35:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_link [2021-11-12 22:35:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_link [2021-11-12 22:35:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-12 22:35:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-12 22:35:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 22:35:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 22:35:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:35:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_report_link [2021-11-12 22:35:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_report_link [2021-11-12 22:35:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_phy [2021-11-12 22:35:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_phy [2021-11-12 22:35:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_phy [2021-11-12 22:35:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_phy [2021-11-12 22:35:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-12 22:35:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-12 22:35:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_hw_rx_cons [2021-11-12 22:35:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_hw_rx_cons [2021-11-12 22:35:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 22:35:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 22:35:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_nvram [2021-11-12 22:35:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_nvram [2021-11-12 22:35:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:35:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_change_ring_size [2021-11-12 22:35:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_change_ring_size [2021-11-12 22:35:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_power_state [2021-11-12 22:35:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_power_state [2021-11-12 22:35:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure load_cpu_fw [2021-11-12 22:35:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure load_cpu_fw [2021-11-12 22:35:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-12 22:35:11,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-12 22:35:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_default_remote_link [2021-11-12 22:35:11,627 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_default_remote_link [2021-11-12 22:35:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:35:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:35:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:35:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_write_phy [2021-11-12 22:35:11,628 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_write_phy [2021-11-12 22:35:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:35:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-11-12 22:35:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-11-12 22:35:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:35:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_hw_tx_cons [2021-11-12 22:35:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_hw_tx_cons [2021-11-12 22:35:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_vpd_info_field_size [2021-11-12 22:35:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_vpd_info_field_size [2021-11-12 22:35:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_fw_sync [2021-11-12 22:35:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_fw_sync [2021-11-12 22:35:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shmem_wr [2021-11-12 22:35:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shmem_wr [2021-11-12 22:35:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-12 22:35:11,635 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-12 22:35:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-12 22:35:11,635 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-12 22:35:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_5706s_force_link_dn [2021-11-12 22:35:11,636 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_5706s_force_link_dn [2021-11-12 22:35:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-12 22:35:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-12 22:35:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 22:35:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 22:35:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_default_link [2021-11-12 22:35:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_default_link [2021-11-12 22:35:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 22:35:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 22:35:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_phy_get_pause_adv [2021-11-12 22:35:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_phy_get_pause_adv [2021-11-12 22:35:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_remote_phy_event [2021-11-12 22:35:11,640 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_remote_phy_event [2021-11-12 22:35:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-12 22:35:11,644 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-12 22:35:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_read [2021-11-12 22:35:11,645 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_read [2021-11-12 22:35:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_stats64 [2021-11-12 22:35:11,645 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_stats64 [2021-11-12 22:35:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_change_mac_addr [2021-11-12 22:35:11,645 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_change_mac_addr [2021-11-12 22:35:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_fw_cap [2021-11-12 22:35:11,646 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_fw_cap [2021-11-12 22:35:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reg_rd_ind [2021-11-12 22:35:11,646 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reg_rd_ind [2021-11-12 22:35:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-12 22:35:11,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-12 22:35:11,647 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_nvram_write [2021-11-12 22:35:11,647 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_nvram_write [2021-11-12 22:35:11,647 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-12 22:35:11,647 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-12 22:35:11,647 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 22:35:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 22:35:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-12 22:35:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-12 22:35:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-12 22:35:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-12 22:35:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_cnic_irq_info [2021-11-12 22:35:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_cnic_irq_info [2021-11-12 22:35:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 22:35:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 22:35:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_suspend [2021-11-12 22:35:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_suspend [2021-11-12 22:35:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_forced_2g5 [2021-11-12 22:35:11,650 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_forced_2g5 [2021-11-12 22:35:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_change_mtu [2021-11-12 22:35:11,650 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_change_mtu [2021-11-12 22:35:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cnic_lock_of_bnx2 [2021-11-12 22:35:11,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cnic_lock_of_bnx2 [2021-11-12 22:35:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cnic_lock_of_bnx2 [2021-11-12 22:35:11,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cnic_lock_of_bnx2 [2021-11-12 22:35:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:35:11,651 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:35:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_netif_stop [2021-11-12 22:35:11,651 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_netif_stop [2021-11-12 22:35:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_ringparam [2021-11-12 22:35:11,652 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_ringparam [2021-11-12 22:35:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:35:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:35:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:35:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:35:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:35:11,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:35:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_find_max_ring [2021-11-12 22:35:11,653 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_find_max_ring [2021-11-12 22:35:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_coalesce [2021-11-12 22:35:11,653 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_coalesce [2021-11-12 22:35:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_send_heart_beat [2021-11-12 22:35:11,654 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_send_heart_beat [2021-11-12 22:35:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_io_slot_reset [2021-11-12 22:35:11,654 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_io_slot_reset [2021-11-12 22:35:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_rx_page [2021-11-12 22:35:11,654 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_rx_page [2021-11-12 22:35:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-12 22:35:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-12 22:35:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-12 22:35:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-12 22:35:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-12 22:35:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-12 22:35:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-12 22:35:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-12 22:35:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_release_firmware [2021-11-12 22:35:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_release_firmware [2021-11-12 22:35:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-12 22:35:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-12 22:35:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-12 22:35:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-12 22:35:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shutdown_chip [2021-11-12 22:35:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shutdown_chip [2021-11-12 22:35:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_mem [2021-11-12 22:35:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_mem [2021-11-12 22:35:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_coalesce [2021-11-12 22:35:11,658 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_coalesce [2021-11-12 22:35:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-12 22:35:11,658 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-12 22:35:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-12 22:35:11,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-12 22:35:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-12 22:35:11,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-12 22:35:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 22:35:11,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 22:35:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-12 22:35:11,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-12 22:35:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-12 22:35:11,660 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-12 22:35:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_irq [2021-11-12 22:35:11,660 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_irq [2021-11-12 22:35:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure poll_bnx2 [2021-11-12 22:35:11,661 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_bnx2 [2021-11-12 22:35:11,661 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-12 22:35:11,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-12 22:35:11,661 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_features [2021-11-12 22:35:11,661 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_features [2021-11-12 22:35:11,661 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_rx_ring_size [2021-11-12 22:35:11,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_rx_ring_size [2021-11-12 22:35:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_dump_mcp_state [2021-11-12 22:35:11,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_dump_mcp_state [2021-11-12 22:35:15,182 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:43:28,639 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:43:28,639 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:43:28,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:43:28 BoogieIcfgContainer [2021-11-12 22:43:28,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:43:28,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:43:28,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:43:28,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:43:28,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:34:56" (1/3) ... [2021-11-12 22:43:28,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659256fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:43:28, skipping insertion in model container [2021-11-12 22:43:28,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:09" (2/3) ... [2021-11-12 22:43:28,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659256fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:43:28, skipping insertion in model container [2021-11-12 22:43:28,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:43:28" (3/3) ... [2021-11-12 22:43:28,655 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i [2021-11-12 22:43:28,660 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:43:28,661 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:43:28,728 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:43:28,735 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:43:28,735 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:43:28,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 5421 states, 3769 states have (on average 1.3507561687450251) internal successors, (5091), 3842 states have internal predecessors, (5091), 1421 states have call successors, (1421), 230 states have call predecessors, (1421), 229 states have return successors, (1413), 1410 states have call predecessors, (1413), 1413 states have call successors, (1413) [2021-11-12 22:43:28,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-11-12 22:43:28,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:28,882 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:43:28,883 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:43:28,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:28,888 INFO L85 PathProgramCache]: Analyzing trace with hash 795739724, now seen corresponding path program 1 times [2021-11-12 22:43:28,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:28,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937385700] [2021-11-12 22:43:28,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:28,919 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:28,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:28,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:28,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:43:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:40,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 5874 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:43:40,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:42,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1659 backedges. 646 proven. 0 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked. [2021-11-12 22:43:42,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:43,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1659 backedges. 50 proven. 20 refuted. 0 times theorem prover too weak. 1589 trivial. 0 not checked. [2021-11-12 22:43:43,782 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:43,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937385700] [2021-11-12 22:43:43,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937385700] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:43:43,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:43:43,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 22:43:43,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016429355] [2021-11-12 22:43:43,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:43,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:43:43,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:43,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:43:43,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:43:43,831 INFO L87 Difference]: Start difference. First operand has 5421 states, 3769 states have (on average 1.3507561687450251) internal successors, (5091), 3842 states have internal predecessors, (5091), 1421 states have call successors, (1421), 230 states have call predecessors, (1421), 229 states have return successors, (1413), 1410 states have call predecessors, (1413), 1413 states have call successors, (1413) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 22:43:44,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:44,256 INFO L93 Difference]: Finished difference Result 10837 states and 15982 transitions. [2021-11-12 22:43:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:43:44,259 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 339 [2021-11-12 22:43:44,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:44,336 INFO L225 Difference]: With dead ends: 10837 [2021-11-12 22:43:44,336 INFO L226 Difference]: Without dead ends: 5399 [2021-11-12 22:43:44,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 676 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:43:44,399 INFO L933 BasicCegarLoop]: 7915 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7915 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:44,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7915 Invalid, 0 Unknown, 0 Unchecked, 28.24ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:43:44,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5399 states. [2021-11-12 22:43:44,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5399 to 5399. [2021-11-12 22:43:44,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5399 states, 3757 states have (on average 1.3468192706947033) internal successors, (5060), 3820 states have internal predecessors, (5060), 1413 states have call successors, (1413), 229 states have call predecessors, (1413), 228 states have return successors, (1407), 1404 states have call predecessors, (1407), 1407 states have call successors, (1407) [2021-11-12 22:43:44,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5399 states to 5399 states and 7880 transitions. [2021-11-12 22:43:44,867 INFO L78 Accepts]: Start accepts. Automaton has 5399 states and 7880 transitions. Word has length 339 [2021-11-12 22:43:44,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:44,870 INFO L470 AbstractCegarLoop]: Abstraction has 5399 states and 7880 transitions. [2021-11-12 22:43:44,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 22:43:44,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5399 states and 7880 transitions. [2021-11-12 22:43:44,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-11-12 22:43:44,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:44,888 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:43:45,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:45,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:45,111 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:43:45,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:45,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1607035794, now seen corresponding path program 1 times [2021-11-12 22:43:45,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:45,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673632758] [2021-11-12 22:43:45,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:45,119 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:45,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:45,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:45,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:43:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:56,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 5874 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:43:56,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:58,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1659 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1605 trivial. 0 not checked. [2021-11-12 22:43:58,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:00,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1659 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 1617 trivial. 0 not checked. [2021-11-12 22:44:00,303 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:00,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673632758] [2021-11-12 22:44:00,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673632758] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:44:00,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:44:00,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-12 22:44:00,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380529507] [2021-11-12 22:44:00,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:00,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:44:00,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:00,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:44:00,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:44:00,310 INFO L87 Difference]: Start difference. First operand 5399 states and 7880 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-12 22:44:01,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:01,950 INFO L93 Difference]: Finished difference Result 10770 states and 15801 transitions. [2021-11-12 22:44:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:44:01,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 339 [2021-11-12 22:44:01,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:02,021 INFO L225 Difference]: With dead ends: 10770 [2021-11-12 22:44:02,021 INFO L226 Difference]: Without dead ends: 5402 [2021-11-12 22:44:02,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:44:02,069 INFO L933 BasicCegarLoop]: 7869 mSDtfsCounter, 6 mSDsluCounter, 31446 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 859.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39315 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 89.45ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 917.51ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:02,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 39315 Invalid, 95 Unknown, 0 Unchecked, 89.45ms Time], IncrementalHoareTripleChecker [15 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 917.51ms Time] [2021-11-12 22:44:02,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2021-11-12 22:44:02,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5402. [2021-11-12 22:44:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 3759 states have (on average 1.3469007714817771) internal successors, (5063), 3823 states have internal predecessors, (5063), 1413 states have call successors, (1413), 229 states have call predecessors, (1413), 229 states have return successors, (1408), 1404 states have call predecessors, (1408), 1407 states have call successors, (1408) [2021-11-12 22:44:02,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 7884 transitions. [2021-11-12 22:44:02,383 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 7884 transitions. Word has length 339 [2021-11-12 22:44:02,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:02,384 INFO L470 AbstractCegarLoop]: Abstraction has 5402 states and 7884 transitions. [2021-11-12 22:44:02,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-12 22:44:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 7884 transitions. [2021-11-12 22:44:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-12 22:44:02,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:02,393 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:02,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:02,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:02,607 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:44:02,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:02,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1580481696, now seen corresponding path program 1 times [2021-11-12 22:44:02,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:02,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346458209] [2021-11-12 22:44:02,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:02,615 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:02,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:02,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:02,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:44:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:13,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 5909 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:44:13,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:15,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 1656 trivial. 0 not checked. [2021-11-12 22:44:15,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:18,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2021-11-12 22:44:18,286 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:18,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346458209] [2021-11-12 22:44:18,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346458209] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:44:18,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [873434307] [2021-11-12 22:44:18,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:18,287 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:44:18,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:44:18,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:44:18,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-12 22:44:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:21,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 5909 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:44:21,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2021-11-12 22:44:28,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:30,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2021-11-12 22:44:30,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [873434307] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:30,195 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:44:30,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [7, 7] total 12 [2021-11-12 22:44:30,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7515278] [2021-11-12 22:44:30,196 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:30,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:44:30,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:30,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:44:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:44:30,199 INFO L87 Difference]: Start difference. First operand 5402 states and 7884 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:44:30,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:30,734 INFO L93 Difference]: Finished difference Result 13963 states and 20347 transitions. [2021-11-12 22:44:30,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:44:30,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 346 [2021-11-12 22:44:30,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:30,830 INFO L225 Difference]: With dead ends: 13963 [2021-11-12 22:44:30,831 INFO L226 Difference]: Without dead ends: 8614 [2021-11-12 22:44:30,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1380 GetRequests, 1370 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:44:30,880 INFO L933 BasicCegarLoop]: 9551 mSDtfsCounter, 7638 mSDsluCounter, 4722 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7638 SdHoareTripleChecker+Valid, 14273 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.24ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.87ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:30,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7638 Valid, 14273 Invalid, 11 Unknown, 0 Unchecked, 48.24ms Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 81.87ms Time] [2021-11-12 22:44:30,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2021-11-12 22:44:31,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 8611. [2021-11-12 22:44:31,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8611 states, 6021 states have (on average 1.339976748048497) internal successors, (8068), 6124 states have internal predecessors, (8068), 2203 states have call successors, (2203), 388 states have call predecessors, (2203), 386 states have return successors, (2208), 2190 states have call predecessors, (2208), 2196 states have call successors, (2208) [2021-11-12 22:44:31,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8611 states to 8611 states and 12479 transitions. [2021-11-12 22:44:31,550 INFO L78 Accepts]: Start accepts. Automaton has 8611 states and 12479 transitions. Word has length 346 [2021-11-12 22:44:31,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:31,551 INFO L470 AbstractCegarLoop]: Abstraction has 8611 states and 12479 transitions. [2021-11-12 22:44:31,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:44:31,553 INFO L276 IsEmpty]: Start isEmpty. Operand 8611 states and 12479 transitions. [2021-11-12 22:44:31,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-11-12 22:44:31,561 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:31,562 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:31,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:31,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:31,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:31,983 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:44:31,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:31,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1748044398, now seen corresponding path program 1 times [2021-11-12 22:44:31,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:31,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581878781] [2021-11-12 22:44:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:31,995 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:31,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:31,996 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:32,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:44:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:43,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 5910 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:44:43,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:45,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 1656 trivial. 0 not checked. [2021-11-12 22:44:45,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:47,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2021-11-12 22:44:47,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:47,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581878781] [2021-11-12 22:44:47,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581878781] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:44:47,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1964002436] [2021-11-12 22:44:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:47,795 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:44:47,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:44:47,796 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:44:47,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-12 22:44:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:51,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 5910 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:44:51,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:57,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2021-11-12 22:44:57,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:59,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2021-11-12 22:44:59,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1964002436] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:59,647 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:44:59,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [7, 7] total 12 [2021-11-12 22:44:59,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241522557] [2021-11-12 22:44:59,648 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:59,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:44:59,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:59,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:44:59,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:44:59,650 INFO L87 Difference]: Start difference. First operand 8611 states and 12479 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:44:59,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:59,963 INFO L93 Difference]: Finished difference Result 8613 states and 12480 transitions. [2021-11-12 22:44:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:44:59,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 347 [2021-11-12 22:44:59,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:00,068 INFO L225 Difference]: With dead ends: 8613 [2021-11-12 22:45:00,068 INFO L226 Difference]: Without dead ends: 8610 [2021-11-12 22:45:00,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1384 GetRequests, 1374 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:45:00,078 INFO L933 BasicCegarLoop]: 7875 mSDtfsCounter, 7768 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7768 SdHoareTripleChecker+Valid, 7875 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.27ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:00,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7768 Valid, 7875 Invalid, 1 Unknown, 0 Unchecked, 25.91ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 10.27ms Time] [2021-11-12 22:45:00,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8610 states. [2021-11-12 22:45:00,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8610 to 8610. [2021-11-12 22:45:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8610 states, 6021 states have (on average 1.3398106626806179) internal successors, (8067), 6123 states have internal predecessors, (8067), 2202 states have call successors, (2202), 388 states have call predecessors, (2202), 386 states have return successors, (2208), 2190 states have call predecessors, (2208), 2196 states have call successors, (2208) [2021-11-12 22:45:00,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8610 states to 8610 states and 12477 transitions. [2021-11-12 22:45:00,751 INFO L78 Accepts]: Start accepts. Automaton has 8610 states and 12477 transitions. Word has length 347 [2021-11-12 22:45:00,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:00,752 INFO L470 AbstractCegarLoop]: Abstraction has 8610 states and 12477 transitions. [2021-11-12 22:45:00,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:45:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 8610 states and 12477 transitions. [2021-11-12 22:45:00,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-11-12 22:45:00,763 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:00,763 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:45:00,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:01,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:01,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:45:01,180 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:45:01,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:01,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1647441565, now seen corresponding path program 1 times [2021-11-12 22:45:01,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:01,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927447217] [2021-11-12 22:45:01,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:01,191 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:01,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:01,192 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:01,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:45:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:12,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 5911 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:45:12,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 1656 trivial. 0 not checked. [2021-11-12 22:45:14,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2021-11-12 22:45:16,641 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:45:16,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927447217] [2021-11-12 22:45:16,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927447217] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:45:16,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [8679458] [2021-11-12 22:45:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:16,642 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:45:16,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:45:16,642 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:45:16,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-12 22:45:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:20,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 5911 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:45:20,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2021-11-12 22:45:26,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2021-11-12 22:45:28,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [8679458] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:45:28,198 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:45:28,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [7, 7] total 12 [2021-11-12 22:45:28,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206898296] [2021-11-12 22:45:28,199 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:45:28,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:45:28,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:45:28,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:45:28,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:45:28,201 INFO L87 Difference]: Start difference. First operand 8610 states and 12477 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:45:28,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:28,521 INFO L93 Difference]: Finished difference Result 8612 states and 12478 transitions. [2021-11-12 22:45:28,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:45:28,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 348 [2021-11-12 22:45:28,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:28,575 INFO L225 Difference]: With dead ends: 8612 [2021-11-12 22:45:28,575 INFO L226 Difference]: Without dead ends: 8609 [2021-11-12 22:45:28,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1388 GetRequests, 1378 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:45:28,584 INFO L933 BasicCegarLoop]: 7873 mSDtfsCounter, 7765 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7765 SdHoareTripleChecker+Valid, 7873 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.42ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:28,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7765 Valid, 7873 Invalid, 1 Unknown, 0 Unchecked, 20.95ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 10.42ms Time] [2021-11-12 22:45:28,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8609 states. [2021-11-12 22:45:29,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8609 to 8609. [2021-11-12 22:45:29,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8609 states, 6021 states have (on average 1.3396445773127388) internal successors, (8066), 6122 states have internal predecessors, (8066), 2201 states have call successors, (2201), 388 states have call predecessors, (2201), 386 states have return successors, (2208), 2190 states have call predecessors, (2208), 2196 states have call successors, (2208) [2021-11-12 22:45:29,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8609 states to 8609 states and 12475 transitions. [2021-11-12 22:45:29,255 INFO L78 Accepts]: Start accepts. Automaton has 8609 states and 12475 transitions. Word has length 348 [2021-11-12 22:45:29,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:29,255 INFO L470 AbstractCegarLoop]: Abstraction has 8609 states and 12475 transitions. [2021-11-12 22:45:29,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:45:29,256 INFO L276 IsEmpty]: Start isEmpty. Operand 8609 states and 12475 transitions. [2021-11-12 22:45:29,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-11-12 22:45:29,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:29,264 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:45:29,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:29,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:29,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:45:29,682 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:45:29,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:29,683 INFO L85 PathProgramCache]: Analyzing trace with hash 466680849, now seen corresponding path program 1 times [2021-11-12 22:45:29,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:29,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922758679] [2021-11-12 22:45:29,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:29,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:29,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:29,690 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:29,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:45:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:40,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 5912 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:45:40,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 1656 trivial. 0 not checked. [2021-11-12 22:45:42,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:45,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2021-11-12 22:45:45,282 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:45:45,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922758679] [2021-11-12 22:45:45,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922758679] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:45:45,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2020333812] [2021-11-12 22:45:45,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:45,282 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:45:45,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:45:45,283 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:45:45,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-12 22:45:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:48,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 5912 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:45:48,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:55,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2021-11-12 22:45:55,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:56,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2021-11-12 22:45:56,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2020333812] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:45:56,925 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:45:56,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [7, 7] total 12 [2021-11-12 22:45:56,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284171647] [2021-11-12 22:45:56,926 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:45:56,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:45:56,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:45:56,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:45:56,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:45:56,928 INFO L87 Difference]: Start difference. First operand 8609 states and 12475 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:45:57,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:57,265 INFO L93 Difference]: Finished difference Result 8611 states and 12476 transitions. [2021-11-12 22:45:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:45:57,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 349 [2021-11-12 22:45:57,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:57,318 INFO L225 Difference]: With dead ends: 8611 [2021-11-12 22:45:57,318 INFO L226 Difference]: Without dead ends: 8600 [2021-11-12 22:45:57,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1392 GetRequests, 1382 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:45:57,327 INFO L933 BasicCegarLoop]: 7872 mSDtfsCounter, 7762 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7762 SdHoareTripleChecker+Valid, 7872 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.98ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:57,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7762 Valid, 7872 Invalid, 0 Unknown, 0 Unchecked, 17.98ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:45:57,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8600 states. [2021-11-12 22:45:57,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8600 to 8600. [2021-11-12 22:45:57,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 6013 states have (on average 1.3397638450024947) internal successors, (8056), 6113 states have internal predecessors, (8056), 2200 states have call successors, (2200), 388 states have call predecessors, (2200), 386 states have return successors, (2208), 2190 states have call predecessors, (2208), 2196 states have call successors, (2208) [2021-11-12 22:45:57,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 12464 transitions. [2021-11-12 22:45:57,993 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 12464 transitions. Word has length 349 [2021-11-12 22:45:57,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:57,995 INFO L470 AbstractCegarLoop]: Abstraction has 8600 states and 12464 transitions. [2021-11-12 22:45:57,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:45:57,996 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 12464 transitions. [2021-11-12 22:45:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-11-12 22:45:58,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:58,009 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:45:58,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-12 22:45:58,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:58,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:45:58,423 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:45:58,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:58,424 INFO L85 PathProgramCache]: Analyzing trace with hash 714888346, now seen corresponding path program 1 times [2021-11-12 22:45:58,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:58,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410865528] [2021-11-12 22:45:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:58,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:58,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:58,431 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:58,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:46:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:09,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 6079 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:46:09,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:11,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 1656 trivial. 0 not checked. [2021-11-12 22:46:11,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:14,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2021-11-12 22:46:14,368 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:46:14,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410865528] [2021-11-12 22:46:14,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410865528] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:46:14,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1385693154] [2021-11-12 22:46:14,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:14,369 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:46:14,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:46:14,396 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:46:14,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-12 22:46:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:18,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 6079 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:46:18,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:19,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2021-11-12 22:46:19,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2021-11-12 22:46:20,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1385693154] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:46:20,033 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:46:20,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7, 7] total 12 [2021-11-12 22:46:20,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716022305] [2021-11-12 22:46:20,034 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:46:20,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:46:20,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:46:20,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:46:20,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:46:20,036 INFO L87 Difference]: Start difference. First operand 8600 states and 12464 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-12 22:46:22,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:46:23,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:46:23,246 INFO L93 Difference]: Finished difference Result 14493 states and 20877 transitions. [2021-11-12 22:46:23,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:46:23,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 386 [2021-11-12 22:46:23,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:46:23,299 INFO L225 Difference]: With dead ends: 14493 [2021-11-12 22:46:23,300 INFO L226 Difference]: Without dead ends: 8585 [2021-11-12 22:46:23,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1540 GetRequests, 1530 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:46:23,334 INFO L933 BasicCegarLoop]: 11256 mSDtfsCounter, 4702 mSDsluCounter, 7701 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2631.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4702 SdHoareTripleChecker+Valid, 18957 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.74ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2742.97ms IncrementalHoareTripleChecker+Time [2021-11-12 22:46:23,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4702 Valid, 18957 Invalid, 6 Unknown, 0 Unchecked, 37.74ms Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 2742.97ms Time] [2021-11-12 22:46:23,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8585 states. [2021-11-12 22:46:23,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8585 to 8585. [2021-11-12 22:46:23,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8585 states, 6002 states have (on average 1.3400533155614796) internal successors, (8043), 6104 states have internal predecessors, (8043), 2197 states have call successors, (2197), 387 states have call predecessors, (2197), 385 states have return successors, (2193), 2185 states have call predecessors, (2193), 2191 states have call successors, (2193) [2021-11-12 22:46:23,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8585 states to 8585 states and 12433 transitions. [2021-11-12 22:46:23,990 INFO L78 Accepts]: Start accepts. Automaton has 8585 states and 12433 transitions. Word has length 386 [2021-11-12 22:46:23,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:46:23,992 INFO L470 AbstractCegarLoop]: Abstraction has 8585 states and 12433 transitions. [2021-11-12 22:46:23,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-12 22:46:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand 8585 states and 12433 transitions. [2021-11-12 22:46:24,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-11-12 22:46:24,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:46:24,017 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:46:24,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:24,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:24,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:46:24,439 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:46:24,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:46:24,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1483850356, now seen corresponding path program 1 times [2021-11-12 22:46:24,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:46:24,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1057311288] [2021-11-12 22:46:24,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:24,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:46:24,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:46:24,450 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:46:24,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:46:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:36,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 6331 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:46:36,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:38,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2021-11-12 22:46:38,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:41,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 1681 trivial. 0 not checked. [2021-11-12 22:46:41,480 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:46:41,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1057311288] [2021-11-12 22:46:41,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1057311288] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:46:41,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1886761699] [2021-11-12 22:46:41,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:41,481 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:46:41,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:46:41,481 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:46:41,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-12 22:46:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:45,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 6331 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:46:45,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2021-11-12 22:46:46,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:47,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1737 trivial. 0 not checked. [2021-11-12 22:46:47,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1886761699] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:46:47,251 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:46:47,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [7, 7] total 13 [2021-11-12 22:46:47,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895391687] [2021-11-12 22:46:47,251 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:46:47,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:46:47,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:46:47,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:46:47,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:46:47,253 INFO L87 Difference]: Start difference. First operand 8585 states and 12433 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-12 22:46:47,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:46:47,883 INFO L93 Difference]: Finished difference Result 17125 states and 24848 transitions. [2021-11-12 22:46:47,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:46:47,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 426 [2021-11-12 22:46:47,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:46:47,929 INFO L225 Difference]: With dead ends: 17125 [2021-11-12 22:46:47,930 INFO L226 Difference]: Without dead ends: 8593 [2021-11-12 22:46:47,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1701 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:46:47,972 INFO L933 BasicCegarLoop]: 7858 mSDtfsCounter, 2 mSDsluCounter, 15711 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23569 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.69ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.52ms IncrementalHoareTripleChecker+Time [2021-11-12 22:46:47,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 23569 Invalid, 14 Unknown, 0 Unchecked, 25.69ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 118.52ms Time] [2021-11-12 22:46:47,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8593 states. [2021-11-12 22:46:48,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8593 to 8591. [2021-11-12 22:46:48,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8591 states, 6008 states have (on average 1.3397137150466045) internal successors, (8049), 6110 states have internal predecessors, (8049), 2197 states have call successors, (2197), 387 states have call predecessors, (2197), 385 states have return successors, (2193), 2185 states have call predecessors, (2193), 2191 states have call successors, (2193) [2021-11-12 22:46:48,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8591 states to 8591 states and 12439 transitions. [2021-11-12 22:46:48,601 INFO L78 Accepts]: Start accepts. Automaton has 8591 states and 12439 transitions. Word has length 426 [2021-11-12 22:46:48,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:46:48,602 INFO L470 AbstractCegarLoop]: Abstraction has 8591 states and 12439 transitions. [2021-11-12 22:46:48,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-12 22:46:48,602 INFO L276 IsEmpty]: Start isEmpty. Operand 8591 states and 12439 transitions. [2021-11-12 22:46:48,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-11-12 22:46:48,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:46:48,623 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:46:48,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:48,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:49,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:46:49,043 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:46:49,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:46:49,044 INFO L85 PathProgramCache]: Analyzing trace with hash -648056219, now seen corresponding path program 1 times [2021-11-12 22:46:49,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:46:49,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261909735] [2021-11-12 22:46:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:49,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:46:49,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:46:49,051 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:46:49,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:46:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:00,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 6333 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:47:00,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2021-11-12 22:47:02,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 1681 trivial. 0 not checked. [2021-11-12 22:47:05,307 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:47:05,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261909735] [2021-11-12 22:47:05,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261909735] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:47:05,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1626526250] [2021-11-12 22:47:05,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:05,308 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:47:05,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:47:05,309 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:47:05,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-12 22:47:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:09,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 6333 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:47:09,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:10,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1737 trivial. 0 not checked. [2021-11-12 22:47:10,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:11,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1737 trivial. 0 not checked. [2021-11-12 22:47:11,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1626526250] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:47:11,217 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:47:11,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7, 7] total 13 [2021-11-12 22:47:11,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965318647] [2021-11-12 22:47:11,218 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:47:11,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:47:11,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:47:11,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:47:11,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:47:11,220 INFO L87 Difference]: Start difference. First operand 8591 states and 12439 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2021-11-12 22:47:13,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:47:13,359 INFO L93 Difference]: Finished difference Result 17147 states and 24877 transitions. [2021-11-12 22:47:13,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:47:13,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 425 [2021-11-12 22:47:13,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:47:13,408 INFO L225 Difference]: With dead ends: 17147 [2021-11-12 22:47:13,408 INFO L226 Difference]: Without dead ends: 8609 [2021-11-12 22:47:13,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1696 GetRequests, 1685 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:47:13,442 INFO L933 BasicCegarLoop]: 7855 mSDtfsCounter, 9 mSDsluCounter, 15706 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1625.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 23561 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.22ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1678.08ms IncrementalHoareTripleChecker+Time [2021-11-12 22:47:13,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 23561 Invalid, 22 Unknown, 0 Unchecked, 32.22ms Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1678.08ms Time] [2021-11-12 22:47:13,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8609 states. [2021-11-12 22:47:13,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8609 to 8603. [2021-11-12 22:47:13,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8603 states, 6020 states have (on average 1.339700996677741) internal successors, (8065), 6122 states have internal predecessors, (8065), 2197 states have call successors, (2197), 387 states have call predecessors, (2197), 385 states have return successors, (2193), 2185 states have call predecessors, (2193), 2191 states have call successors, (2193) [2021-11-12 22:47:13,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8603 states to 8603 states and 12455 transitions. [2021-11-12 22:47:13,947 INFO L78 Accepts]: Start accepts. Automaton has 8603 states and 12455 transitions. Word has length 425 [2021-11-12 22:47:13,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:47:13,948 INFO L470 AbstractCegarLoop]: Abstraction has 8603 states and 12455 transitions. [2021-11-12 22:47:13,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2021-11-12 22:47:13,948 INFO L276 IsEmpty]: Start isEmpty. Operand 8603 states and 12455 transitions. [2021-11-12 22:47:13,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2021-11-12 22:47:13,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:47:13,971 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:47:14,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-12 22:47:14,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 22:47:14,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:47:14,387 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:47:14,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:47:14,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1883346413, now seen corresponding path program 1 times [2021-11-12 22:47:14,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:47:14,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211201712] [2021-11-12 22:47:14,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:14,393 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:47:14,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:47:14,394 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:47:14,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-12 22:47:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:25,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 6351 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:47:25,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1746 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 1673 trivial. 0 not checked. [2021-11-12 22:47:27,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:30,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1746 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2021-11-12 22:47:30,785 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:47:30,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211201712] [2021-11-12 22:47:30,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211201712] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:47:30,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1414597499] [2021-11-12 22:47:30,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:30,785 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:47:30,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:47:30,786 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:47:30,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c51694-fd72-417c-9256-1ab79edcbe05/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process