./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI --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 5ba89c3eceb6ce3b33f7045e58fd9531469c7ed109a8240b2f15aad930b1478d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:47:24,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:47:24,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:47:24,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:47:24,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:47:24,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:47:24,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:47:24,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:47:24,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:47:24,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:47:24,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:47:24,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:47:24,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:47:24,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:47:24,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:47:24,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:47:24,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:47:24,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:47:24,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:47:24,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:47:24,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:47:24,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:47:24,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:47:24,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:47:24,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:47:24,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:47:24,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:47:24,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:47:24,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:47:24,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:47:24,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:47:24,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:47:24,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:47:24,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:47:24,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:47:24,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:47:24,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:47:24,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:47:24,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:47:24,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:47:24,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:47:24,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:47:24,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:47:24,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:47:24,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:47:24,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:47:24,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:47:24,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:47:24,322 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:47:24,322 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:47:24,322 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:47:24,322 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:47:24,324 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:47:24,324 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:47:24,324 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:47:24,325 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:47:24,325 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:47:24,325 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:47:24,326 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:47:24,326 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:47:24,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:47:24,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:47:24,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:47:24,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:47:24,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:47:24,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:47:24,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:47:24,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:47:24,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:47:24,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:47:24,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:47:24,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:47:24,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:47:24,331 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:47:24,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:47:24,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:47:24,332 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:47:24,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:47:24,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:47:24,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:47:24,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ba89c3eceb6ce3b33f7045e58fd9531469c7ed109a8240b2f15aad930b1478d [2022-11-03 03:47:24,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:47:24,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:47:24,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:47:24,761 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:47:24,763 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:47:24,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-11-03 03:47:24,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/data/0bd7eabef/15296a3f07bd43fc9e27b5968c4a642d/FLAG5e6c27b34 [2022-11-03 03:47:26,113 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:47:26,114 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-11-03 03:47:26,180 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/data/0bd7eabef/15296a3f07bd43fc9e27b5968c4a642d/FLAG5e6c27b34 [2022-11-03 03:47:26,388 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/data/0bd7eabef/15296a3f07bd43fc9e27b5968c4a642d [2022-11-03 03:47:26,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:47:26,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:47:26,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:47:26,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:47:26,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:47:26,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:26" (1/1) ... [2022-11-03 03:47:26,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1565d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:26, skipping insertion in model container [2022-11-03 03:47:26,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:26" (1/1) ... [2022-11-03 03:47:26,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:47:26,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:47:28,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i[170192,170205] [2022-11-03 03:47:29,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:47:29,944 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:47:30,171 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i[170192,170205] [2022-11-03 03:47:30,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:47:30,845 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:47:30,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30 WrapperNode [2022-11-03 03:47:30,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:47:30,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:47:30,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:47:30,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:47:30,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (1/1) ... [2022-11-03 03:47:31,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (1/1) ... [2022-11-03 03:47:31,344 INFO L138 Inliner]: procedures = 347, calls = 3093, calls flagged for inlining = 175, calls inlined = 164, statements flattened = 6488 [2022-11-03 03:47:31,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:47:31,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:47:31,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:47:31,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:47:31,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (1/1) ... [2022-11-03 03:47:31,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (1/1) ... [2022-11-03 03:47:31,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (1/1) ... [2022-11-03 03:47:31,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (1/1) ... [2022-11-03 03:47:31,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (1/1) ... [2022-11-03 03:47:31,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (1/1) ... [2022-11-03 03:47:31,672 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (1/1) ... [2022-11-03 03:47:31,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (1/1) ... [2022-11-03 03:47:31,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:47:31,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:47:31,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:47:31,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:47:31,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (1/1) ... [2022-11-03 03:47:31,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:47:31,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:47:31,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:47:31,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:47:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_do_ioctl [2022-11-03 03:47:31,838 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_do_ioctl [2022-11-03 03:47:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_post [2022-11-03 03:47:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_post [2022-11-03 03:47:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:47:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:47:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:47:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:47:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put [2022-11-03 03:47:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put [2022-11-03 03:47:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_write [2022-11-03 03:47:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_write [2022-11-03 03:47:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:47:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:47:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_select_mii [2022-11-03 03:47:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_select_mii [2022-11-03 03:47:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_edmac [2022-11-03 03:47:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_edmac [2022-11-03 03:47:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_read [2022-11-03 03:47:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_read [2022-11-03 03:47:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:47:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:47:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write [2022-11-03 03:47:31,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write [2022-11-03 03:47:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 03:47:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-11-03 03:47:31,842 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-11-03 03:47:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-03 03:47:31,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-03 03:47:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_table [2022-11-03 03:47:31,843 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_table [2022-11-03 03:47:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 03:47:31,843 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 03:47:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_vtag_index [2022-11-03 03:47:31,843 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_vtag_index [2022-11-03 03:47:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_edtrr_trns [2022-11-03 03:47:31,844 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_edtrr_trns [2022-11-03 03:47:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 03:47:31,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 03:47:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_giga [2022-11-03 03:47:31,845 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_giga [2022-11-03 03:47:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-03 03:47:31,845 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-03 03:47:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:47:31,845 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:47:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 03:47:31,846 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 03:47:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap_resource [2022-11-03 03:47:31,847 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap_resource [2022-11-03 03:47:31,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:47:31,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:47:31,848 INFO L130 BoogieDeclarations]: Found specification of procedure bb_clr [2022-11-03 03:47:31,849 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_clr [2022-11-03 03:47:31,849 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:47:31,849 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:47:31,849 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_get_sync [2022-11-03 03:47:31,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_get_sync [2022-11-03 03:47:31,850 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_duplex [2022-11-03 03:47:31,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_duplex [2022-11-03 03:47:31,851 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-03 03:47:31,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-03 03:47:31,852 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:47:31,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:47:31,852 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_reg_offset [2022-11-03 03:47:31,852 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_reg_offset [2022-11-03 03:47:31,852 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_r8a7740 [2022-11-03 03:47:31,852 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_r8a7740 [2022-11-03 03:47:31,853 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:47:31,853 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:47:31,853 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_giga [2022-11-03 03:47:31,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_giga [2022-11-03 03:47:31,854 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_free_dma_buffer [2022-11-03 03:47:31,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_free_dma_buffer [2022-11-03 03:47:31,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:47:31,854 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_busy [2022-11-03 03:47:31,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_busy [2022-11-03 03:47:31,855 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_r8a777x [2022-11-03 03:47:31,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_r8a777x [2022-11-03 03:47:31,855 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 03:47:31,855 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 03:47:31,855 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-03 03:47:31,855 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-03 03:47:31,856 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-03 03:47:31,857 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-03 03:47:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:47:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-03 03:47:31,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-03 03:47:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2022-11-03 03:47:31,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2022-11-03 03:47:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-03 03:47:31,858 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-03 03:47:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:47:31,859 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:47:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-03 03:47:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:47:31,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:47:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:47:31,860 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:47:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tx_timeout [2022-11-03 03:47:31,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tx_timeout [2022-11-03 03:47:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-03 03:47:31,861 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-03 03:47:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_runtime_nop [2022-11-03 03:47:31,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_runtime_nop [2022-11-03 03:47:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:47:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:47:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_free [2022-11-03 03:47:31,862 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_free [2022-11-03 03:47:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 03:47:31,863 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 03:47:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_open [2022-11-03 03:47:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_open [2022-11-03 03:47:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-03 03:47:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-03 03:47:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:47:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:47:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_multicast_list [2022-11-03 03:47:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_multicast_list [2022-11-03 03:47:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:47:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:47:31,876 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 03:47:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 03:47:31,876 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset [2022-11-03 03:47:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset [2022-11-03 03:47:31,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:47:31,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:47:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:47:31,877 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put_sync [2022-11-03 03:47:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put_sync [2022-11-03 03:47:31,877 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:47:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:47:31,877 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read_entry [2022-11-03 03:47:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read_entry [2022-11-03 03:47:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_txfree [2022-11-03 03:47:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_txfree [2022-11-03 03:47:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:47:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_start_xmit [2022-11-03 03:47:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_start_xmit [2022-11-03 03:47:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-03 03:47:31,879 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-03 03:47:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_disable [2022-11-03 03:47:31,879 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_disable [2022-11-03 03:47:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 03:47:31,879 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 03:47:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 03:47:31,880 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 03:47:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:47:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:47:31,880 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:47:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:47:31,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:47:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_close [2022-11-03 03:47:31,880 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_close [2022-11-03 03:47:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read [2022-11-03 03:47:31,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read [2022-11-03 03:47:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_soft_swap [2022-11-03 03:47:31,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_soft_swap [2022-11-03 03:47:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:47:31,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:47:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-03 03:47:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-03 03:47:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_rz_fast_ether [2022-11-03 03:47:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_rz_fast_ether [2022-11-03 03:47:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure bb_set [2022-11-03 03:47:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_set [2022-11-03 03:47:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_find_entry [2022-11-03 03:47:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_find_entry [2022-11-03 03:47:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:47:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:47:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:47:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:47:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_dev_init [2022-11-03 03:47:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_dev_init [2022-11-03 03:47:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_stats [2022-11-03 03:47:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_stats [2022-11-03 03:47:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:47:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_kill_vid [2022-11-03 03:47:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_kill_vid [2022-11-03 03:47:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7724 [2022-11-03 03:47:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7724 [2022-11-03 03:47:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-03 03:47:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-03 03:47:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_disable [2022-11-03 03:47:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_disable [2022-11-03 03:47:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_adjust_link [2022-11-03 03:47:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_adjust_link [2022-11-03 03:47:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:47:31,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:47:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-03 03:47:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_add_vid [2022-11-03 03:47:31,886 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_add_vid [2022-11-03 03:47:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_init [2022-11-03 03:47:31,886 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_init [2022-11-03 03:47:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure __pm_runtime_idle [2022-11-03 03:47:31,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __pm_runtime_idle [2022-11-03 03:47:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-03 03:47:31,889 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-03 03:47:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:47:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_purge_mcast [2022-11-03 03:47:31,890 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_purge_mcast [2022-11-03 03:47:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 03:47:31,890 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 03:47:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 03:47:31,890 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 03:47:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:47:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-03 03:47:31,890 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-03 03:47:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:47:31,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:47:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:47:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 03:47:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-03 03:47:31,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-03 03:47:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:47:31,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:47:31,892 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 03:47:31,892 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 03:47:31,892 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_register [2022-11-03 03:47:31,892 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_register [2022-11-03 03:47:31,892 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_gether [2022-11-03 03:47:31,892 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_gether [2022-11-03 03:47:31,892 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 03:47:31,893 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 03:47:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7757 [2022-11-03 03:47:31,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7757 [2022-11-03 03:47:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_receive_align [2022-11-03 03:47:31,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_receive_align [2022-11-03 03:47:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_enable [2022-11-03 03:47:31,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_enable [2022-11-03 03:47:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_offset [2022-11-03 03:47:31,894 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_offset [2022-11-03 03:47:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_gether [2022-11-03 03:47:31,894 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_gether [2022-11-03 03:47:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-03 03:47:31,894 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-03 03:47:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 03:47:31,894 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 03:47:31,895 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 03:47:31,900 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 03:47:31,900 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-03 03:47:31,900 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-03 03:47:31,900 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 03:47:31,900 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 03:47:31,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:47:31,900 INFO L130 BoogieDeclarations]: Found specification of procedure sh_mdio_release [2022-11-03 03:47:31,901 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_mdio_release [2022-11-03 03:47:31,901 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write_entry [2022-11-03 03:47:31,902 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write_entry [2022-11-03 03:47:31,903 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_bit [2022-11-03 03:47:31,903 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_bit [2022-11-03 03:47:31,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:47:31,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:47:31,904 INFO L130 BoogieDeclarations]: Found specification of procedure free_mdio_bitbang [2022-11-03 03:47:31,904 INFO L138 BoogieDeclarations]: Found implementation of procedure free_mdio_bitbang [2022-11-03 03:47:31,904 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 03:47:31,904 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 03:47:33,134 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:47:33,144 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:47:33,735 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:48:40,374 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:48:42,572 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:48:42,572 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-03 03:48:42,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:42 BoogieIcfgContainer [2022-11-03 03:48:42,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:48:42,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:48:42,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:48:42,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:48:42,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:47:26" (1/3) ... [2022-11-03 03:48:42,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3009f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:42, skipping insertion in model container [2022-11-03 03:48:42,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:30" (2/3) ... [2022-11-03 03:48:42,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3009f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:42, skipping insertion in model container [2022-11-03 03:48:42,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:42" (3/3) ... [2022-11-03 03:48:42,588 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-11-03 03:48:42,607 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:48:42,608 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:48:42,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:48:42,712 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3fd3ef64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:48:42,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:48:42,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 1914 states, 1177 states have (on average 1.3738317757009346) internal successors, (1617), 1255 states have internal predecessors, (1617), 624 states have call successors, (624), 118 states have call predecessors, (624), 117 states have return successors, (605), 579 states have call predecessors, (605), 605 states have call successors, (605) [2022-11-03 03:48:42,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-03 03:48:42,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:42,740 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-11-03 03:48:42,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:42,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:42,747 INFO L85 PathProgramCache]: Analyzing trace with hash 897052267, now seen corresponding path program 1 times [2022-11-03 03:48:42,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:42,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100847261] [2022-11-03 03:48:42,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:42,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-03 03:48:43,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:43,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100847261] [2022-11-03 03:48:43,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100847261] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:43,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:43,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:48:43,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247829562] [2022-11-03 03:48:43,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:43,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:48:43,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:44,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:48:44,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:44,020 INFO L87 Difference]: Start difference. First operand has 1914 states, 1177 states have (on average 1.3738317757009346) internal successors, (1617), 1255 states have internal predecessors, (1617), 624 states have call successors, (624), 118 states have call predecessors, (624), 117 states have return successors, (605), 579 states have call predecessors, (605), 605 states have call successors, (605) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 03:48:46,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:48,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:52,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:52,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:52,653 INFO L93 Difference]: Finished difference Result 5620 states and 8443 transitions. [2022-11-03 03:48:52,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:48:52,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 78 [2022-11-03 03:48:52,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:52,703 INFO L225 Difference]: With dead ends: 5620 [2022-11-03 03:48:52,703 INFO L226 Difference]: Without dead ends: 3679 [2022-11-03 03:48:52,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:52,723 INFO L413 NwaCegarLoop]: 3183 mSDtfsCounter, 2710 mSDsluCounter, 2791 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2710 SdHoareTripleChecker+Valid, 5775 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:52,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2710 Valid, 5775 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 414 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-11-03 03:48:52,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3679 states. [2022-11-03 03:48:53,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3679 to 3679. [2022-11-03 03:48:53,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3679 states, 2275 states have (on average 1.355164835164835) internal successors, (3083), 2377 states have internal predecessors, (3083), 1171 states have call successors, (1171), 233 states have call predecessors, (1171), 232 states have return successors, (1170), 1118 states have call predecessors, (1170), 1170 states have call successors, (1170) [2022-11-03 03:48:53,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 5424 transitions. [2022-11-03 03:48:53,080 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 5424 transitions. Word has length 78 [2022-11-03 03:48:53,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:53,082 INFO L495 AbstractCegarLoop]: Abstraction has 3679 states and 5424 transitions. [2022-11-03 03:48:53,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 03:48:53,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 5424 transitions. [2022-11-03 03:48:53,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-03 03:48:53,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:53,097 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2022-11-03 03:48:53,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:48:53,098 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:53,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:53,099 INFO L85 PathProgramCache]: Analyzing trace with hash 635537063, now seen corresponding path program 1 times [2022-11-03 03:48:53,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:53,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108101232] [2022-11-03 03:48:53,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:53,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:54,404 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-11-03 03:48:54,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:54,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108101232] [2022-11-03 03:48:54,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108101232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:54,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:54,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:48:54,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008286127] [2022-11-03 03:48:54,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:54,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:48:54,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:54,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:48:54,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:48:54,409 INFO L87 Difference]: Start difference. First operand 3679 states and 5424 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 03:48:56,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:00,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:02,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:02,333 INFO L93 Difference]: Finished difference Result 7125 states and 10544 transitions. [2022-11-03 03:49:02,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:49:02,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 87 [2022-11-03 03:49:02,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:02,396 INFO L225 Difference]: With dead ends: 7125 [2022-11-03 03:49:02,396 INFO L226 Difference]: Without dead ends: 7120 [2022-11-03 03:49:02,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:49:02,405 INFO L413 NwaCegarLoop]: 3353 mSDtfsCounter, 2534 mSDsluCounter, 6340 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2534 SdHoareTripleChecker+Valid, 9284 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:49:02,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2534 Valid, 9284 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 653 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-03 03:49:02,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7120 states. [2022-11-03 03:49:02,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7120 to 7112. [2022-11-03 03:49:02,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 4419 states have (on average 1.3564154786150713) internal successors, (5994), 4619 states have internal predecessors, (5994), 2232 states have call successors, (2232), 461 states have call predecessors, (2232), 460 states have return successors, (2301), 2131 states have call predecessors, (2301), 2231 states have call successors, (2301) [2022-11-03 03:49:02,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 10527 transitions. [2022-11-03 03:49:02,830 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 10527 transitions. Word has length 87 [2022-11-03 03:49:02,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:02,832 INFO L495 AbstractCegarLoop]: Abstraction has 7112 states and 10527 transitions. [2022-11-03 03:49:02,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 03:49:02,835 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 10527 transitions. [2022-11-03 03:49:02,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-03 03:49:02,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:49:02,861 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:49:02,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:49:02,862 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:49:02,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:49:02,863 INFO L85 PathProgramCache]: Analyzing trace with hash -845385531, now seen corresponding path program 1 times [2022-11-03 03:49:02,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:49:02,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422189977] [2022-11-03 03:49:02,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:02,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:49:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:03,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:49:03,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422189977] [2022-11-03 03:49:03,257 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 03:49:03,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315687685] [2022-11-03 03:49:03,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:03,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:49:03,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:49:03,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:49:03,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:49:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:05,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 5273 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:49:05,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:49:05,126 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-11-03 03:49:05,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:49:05,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315687685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:49:05,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:49:05,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:49:05,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836820292] [2022-11-03 03:49:05,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:49:05,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:49:05,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:49:05,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:49:05,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:49:05,130 INFO L87 Difference]: Start difference. First operand 7112 states and 10527 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 03:49:07,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:10,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:12,396 INFO L93 Difference]: Finished difference Result 20706 states and 30580 transitions. [2022-11-03 03:49:12,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:49:12,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 189 [2022-11-03 03:49:12,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:12,513 INFO L225 Difference]: With dead ends: 20706 [2022-11-03 03:49:12,513 INFO L226 Difference]: Without dead ends: 13617 [2022-11-03 03:49:12,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:49:12,564 INFO L413 NwaCegarLoop]: 3063 mSDtfsCounter, 2369 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 5594 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:49:12,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2369 Valid, 5594 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 438 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-11-03 03:49:12,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13617 states. [2022-11-03 03:49:13,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13617 to 13610. [2022-11-03 03:49:13,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13610 states, 8505 states have (on average 1.3556731334509113) internal successors, (11530), 8899 states have internal predecessors, (11530), 4192 states have call successors, (4192), 913 states have call predecessors, (4192), 912 states have return successors, (4323), 3993 states have call predecessors, (4323), 4191 states have call successors, (4323) [2022-11-03 03:49:13,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13610 states to 13610 states and 20045 transitions. [2022-11-03 03:49:13,366 INFO L78 Accepts]: Start accepts. Automaton has 13610 states and 20045 transitions. Word has length 189 [2022-11-03 03:49:13,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:13,369 INFO L495 AbstractCegarLoop]: Abstraction has 13610 states and 20045 transitions. [2022-11-03 03:49:13,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 03:49:13,370 INFO L276 IsEmpty]: Start isEmpty. Operand 13610 states and 20045 transitions. [2022-11-03 03:49:13,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-03 03:49:13,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:49:13,393 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 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] [2022-11-03 03:49:13,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:49:13,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:49:13,619 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:49:13,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:49:13,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2047384765, now seen corresponding path program 1 times [2022-11-03 03:49:13,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:49:13,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680089258] [2022-11-03 03:49:13,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:13,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:49:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-03 03:49:14,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:49:14,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680089258] [2022-11-03 03:49:14,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680089258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:49:14,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:49:14,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:49:14,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156672741] [2022-11-03 03:49:14,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:49:14,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:49:14,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:49:14,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:49:14,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:49:14,429 INFO L87 Difference]: Start difference. First operand 13610 states and 20045 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 03:49:16,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:19,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:21,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:21,770 INFO L93 Difference]: Finished difference Result 39890 states and 58790 transitions. [2022-11-03 03:49:21,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:49:21,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 194 [2022-11-03 03:49:21,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:21,969 INFO L225 Difference]: With dead ends: 39890 [2022-11-03 03:49:21,969 INFO L226 Difference]: Without dead ends: 26303 [2022-11-03 03:49:22,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:49:22,069 INFO L413 NwaCegarLoop]: 3170 mSDtfsCounter, 2401 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2401 SdHoareTripleChecker+Valid, 5719 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:49:22,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2401 Valid, 5719 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 428 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-11-03 03:49:22,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26303 states. [2022-11-03 03:49:23,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26303 to 26294. [2022-11-03 03:49:23,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26294 states, 16485 states have (on average 1.3585683955110708) internal successors, (22396), 17267 states have internal predecessors, (22396), 8052 states have call successors, (8052), 1757 states have call predecessors, (8052), 1756 states have return successors, (8315), 7661 states have call predecessors, (8315), 8051 states have call successors, (8315) [2022-11-03 03:49:23,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26294 states to 26294 states and 38763 transitions. [2022-11-03 03:49:23,880 INFO L78 Accepts]: Start accepts. Automaton has 26294 states and 38763 transitions. Word has length 194 [2022-11-03 03:49:23,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:23,880 INFO L495 AbstractCegarLoop]: Abstraction has 26294 states and 38763 transitions. [2022-11-03 03:49:23,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 03:49:23,881 INFO L276 IsEmpty]: Start isEmpty. Operand 26294 states and 38763 transitions. [2022-11-03 03:49:23,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-03 03:49:23,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:49:23,934 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:49:23,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:49:23,935 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:49:23,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:49:23,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1668036877, now seen corresponding path program 1 times [2022-11-03 03:49:23,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:49:23,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636541785] [2022-11-03 03:49:23,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:23,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:49:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:24,550 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-03 03:49:24,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:49:24,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636541785] [2022-11-03 03:49:24,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636541785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:49:24,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:49:24,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:49:24,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908986268] [2022-11-03 03:49:24,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:49:24,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:49:24,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:49:24,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:49:24,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:49:24,556 INFO L87 Difference]: Start difference. First operand 26294 states and 38763 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 03:49:26,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:29,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:32,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:32,624 INFO L93 Difference]: Finished difference Result 64449 states and 94559 transitions. [2022-11-03 03:49:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:49:32,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 232 [2022-11-03 03:49:32,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:32,869 INFO L225 Difference]: With dead ends: 64449 [2022-11-03 03:49:32,869 INFO L226 Difference]: Without dead ends: 38178 [2022-11-03 03:49:32,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:49:32,980 INFO L413 NwaCegarLoop]: 3185 mSDtfsCounter, 2408 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:49:32,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 5677 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-11-03 03:49:33,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38178 states. [2022-11-03 03:49:35,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38178 to 38173. [2022-11-03 03:49:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38173 states, 23836 states have (on average 1.3501006880349051) internal successors, (32181), 25007 states have internal predecessors, (32181), 11703 states have call successors, (11703), 2634 states have call predecessors, (11703), 2633 states have return successors, (11926), 11119 states have call predecessors, (11926), 11702 states have call successors, (11926) [2022-11-03 03:49:35,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38173 states to 38173 states and 55810 transitions. [2022-11-03 03:49:35,822 INFO L78 Accepts]: Start accepts. Automaton has 38173 states and 55810 transitions. Word has length 232 [2022-11-03 03:49:35,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:35,824 INFO L495 AbstractCegarLoop]: Abstraction has 38173 states and 55810 transitions. [2022-11-03 03:49:35,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 03:49:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 38173 states and 55810 transitions. [2022-11-03 03:49:35,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-03 03:49:35,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:49:35,865 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:49:35,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:49:35,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:49:35,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:49:35,866 INFO L85 PathProgramCache]: Analyzing trace with hash -321128409, now seen corresponding path program 1 times [2022-11-03 03:49:35,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:49:35,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943015785] [2022-11-03 03:49:35,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:35,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:49:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-03 03:49:36,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:49:36,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943015785] [2022-11-03 03:49:36,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943015785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:49:36,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:49:36,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:49:36,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732378466] [2022-11-03 03:49:36,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:49:36,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:49:36,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:49:36,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:49:36,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:49:36,577 INFO L87 Difference]: Start difference. First operand 38173 states and 55810 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 03:49:38,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:41,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:45,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:45,682 INFO L93 Difference]: Finished difference Result 95061 states and 138631 transitions. [2022-11-03 03:49:45,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:49:45,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 233 [2022-11-03 03:49:45,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:46,149 INFO L225 Difference]: With dead ends: 95061 [2022-11-03 03:49:46,149 INFO L226 Difference]: Without dead ends: 56914 [2022-11-03 03:49:46,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:49:46,307 INFO L413 NwaCegarLoop]: 3330 mSDtfsCounter, 2314 mSDsluCounter, 2648 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2314 SdHoareTripleChecker+Valid, 5785 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:49:46,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2314 Valid, 5785 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 525 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-11-03 03:49:46,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56914 states. [2022-11-03 03:49:49,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56914 to 56893. [2022-11-03 03:49:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56893 states, 35622 states have (on average 1.349868059064623) internal successors, (48085), 37531 states have internal predecessors, (48085), 17291 states have call successors, (17291), 3980 states have call predecessors, (17291), 3979 states have return successors, (17438), 16321 states have call predecessors, (17438), 17290 states have call successors, (17438) [2022-11-03 03:49:49,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56893 states to 56893 states and 82814 transitions. [2022-11-03 03:49:49,839 INFO L78 Accepts]: Start accepts. Automaton has 56893 states and 82814 transitions. Word has length 233 [2022-11-03 03:49:49,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:49,839 INFO L495 AbstractCegarLoop]: Abstraction has 56893 states and 82814 transitions. [2022-11-03 03:49:49,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 03:49:49,840 INFO L276 IsEmpty]: Start isEmpty. Operand 56893 states and 82814 transitions. [2022-11-03 03:49:49,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-03 03:49:49,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:49:49,879 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:49:49,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:49:49,880 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:49:49,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:49:49,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1853120898, now seen corresponding path program 1 times [2022-11-03 03:49:49,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:49:49,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281810911] [2022-11-03 03:49:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:49,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:49:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:50,725 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-11-03 03:49:50,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:49:50,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281810911] [2022-11-03 03:49:50,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281810911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:49:50,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:49:50,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:49:50,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373317490] [2022-11-03 03:49:50,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:49:50,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:49:50,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:49:50,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:49:50,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:49:50,729 INFO L87 Difference]: Start difference. First operand 56893 states and 82814 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-03 03:49:52,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:55,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:00,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:50:00,834 INFO L93 Difference]: Finished difference Result 163895 states and 238389 transitions. [2022-11-03 03:50:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:50:00,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 221 [2022-11-03 03:50:00,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:50:01,424 INFO L225 Difference]: With dead ends: 163895 [2022-11-03 03:50:01,424 INFO L226 Difference]: Without dead ends: 107028 [2022-11-03 03:50:01,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:50:01,837 INFO L413 NwaCegarLoop]: 4169 mSDtfsCounter, 2445 mSDsluCounter, 2738 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2445 SdHoareTripleChecker+Valid, 6709 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:50:01,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2445 Valid, 6709 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 513 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-11-03 03:50:01,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107028 states. [2022-11-03 03:50:06,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107028 to 107013. [2022-11-03 03:50:06,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107013 states, 67036 states have (on average 1.3505728265409631) internal successors, (90537), 70647 states have internal predecessors, (90537), 32401 states have call successors, (32401), 7576 states have call predecessors, (32401), 7575 states have return successors, (32620), 30573 states have call predecessors, (32620), 32400 states have call successors, (32620) [2022-11-03 03:50:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107013 states to 107013 states and 155558 transitions. [2022-11-03 03:50:07,446 INFO L78 Accepts]: Start accepts. Automaton has 107013 states and 155558 transitions. Word has length 221 [2022-11-03 03:50:07,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:50:07,446 INFO L495 AbstractCegarLoop]: Abstraction has 107013 states and 155558 transitions. [2022-11-03 03:50:07,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-03 03:50:07,447 INFO L276 IsEmpty]: Start isEmpty. Operand 107013 states and 155558 transitions. [2022-11-03 03:50:07,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-03 03:50:07,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:50:07,485 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:50:07,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:50:07,485 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:50:07,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:50:07,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1169452245, now seen corresponding path program 1 times [2022-11-03 03:50:07,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:50:07,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015843527] [2022-11-03 03:50:07,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:50:07,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:50:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:50:08,040 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-11-03 03:50:08,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:50:08,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015843527] [2022-11-03 03:50:08,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015843527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:50:08,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:50:08,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:50:08,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107156068] [2022-11-03 03:50:08,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:50:08,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:50:08,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:50:08,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:50:08,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:50:08,042 INFO L87 Difference]: Start difference. First operand 107013 states and 155558 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 03:50:10,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:14,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:16,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:50:16,687 INFO L93 Difference]: Finished difference Result 161560 states and 234792 transitions. [2022-11-03 03:50:16,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:50:16,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 212 [2022-11-03 03:50:16,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:50:16,911 INFO L225 Difference]: With dead ends: 161560 [2022-11-03 03:50:16,911 INFO L226 Difference]: Without dead ends: 54569 [2022-11-03 03:50:17,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:50:17,180 INFO L413 NwaCegarLoop]: 2556 mSDtfsCounter, 5 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5106 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:50:17,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5106 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 404 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-11-03 03:50:17,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54569 states. [2022-11-03 03:50:19,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54569 to 54549. [2022-11-03 03:50:19,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54549 states, 34127 states have (on average 1.3503384417030504) internal successors, (46083), 35958 states have internal predecessors, (46083), 16518 states have call successors, (16518), 3904 states have call predecessors, (16518), 3903 states have return successors, (16627), 15587 states have call predecessors, (16627), 16517 states have call successors, (16627) [2022-11-03 03:50:19,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54549 states to 54549 states and 79228 transitions. [2022-11-03 03:50:19,653 INFO L78 Accepts]: Start accepts. Automaton has 54549 states and 79228 transitions. Word has length 212 [2022-11-03 03:50:19,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:50:19,654 INFO L495 AbstractCegarLoop]: Abstraction has 54549 states and 79228 transitions. [2022-11-03 03:50:19,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 03:50:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand 54549 states and 79228 transitions. [2022-11-03 03:50:19,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-03 03:50:19,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:50:19,707 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:50:19,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 03:50:19,708 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:50:19,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:50:19,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1967700512, now seen corresponding path program 1 times [2022-11-03 03:50:19,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:50:19,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370309810] [2022-11-03 03:50:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:50:19,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:50:19,991 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:50:19,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [174590308] [2022-11-03 03:50:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:50:19,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:50:19,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:50:19,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:50:20,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36e62f-2bd9-4003-aa9c-06d6758cd215/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process