./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--phy--dp83640.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_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/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_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/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--phy--dp83640.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/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_d0eb72dc-bfd9-4634-b65c-16618fdda381/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 6985379bcc34be713545a774d70e5414e9690ba41356ad39bb00629a60c9ae14 --- 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 03:31:49,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:31:49,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:31:49,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:31:49,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:31:49,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:31:49,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:31:49,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:31:49,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:31:49,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:31:49,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:31:49,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:31:49,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:31:49,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:31:49,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:31:49,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:31:49,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:31:49,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:31:49,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:31:49,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:31:49,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:31:49,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:31:49,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:31:49,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:31:49,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:31:49,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:31:49,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:31:49,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:31:49,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:31:49,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:31:49,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:31:49,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:31:49,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:31:49,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:31:49,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:31:49,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:31:49,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:31:49,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:31:49,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:31:49,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:31:49,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:31:49,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:31:49,358 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:31:49,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:31:49,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:31:49,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:31:49,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:31:49,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:31:49,360 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:31:49,360 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:31:49,361 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:31:49,361 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:31:49,364 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:31:49,365 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:31:49,365 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:31:49,365 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:31:49,365 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:31:49,366 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:31:49,366 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:31:49,366 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:31:49,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:31:49,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:31:49,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:31:49,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:31:49,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:31:49,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:31:49,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:31:49,369 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:31:49,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:31:49,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:31:49,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:31:49,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:31:49,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:31:49,371 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:31:49,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:31:49,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:31:49,372 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:31:49,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:31:49,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:31:49,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:31:49,378 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_d0eb72dc-bfd9-4634-b65c-16618fdda381/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6985379bcc34be713545a774d70e5414e9690ba41356ad39bb00629a60c9ae14 [2022-11-03 03:31:49,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:31:49,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:31:49,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:31:49,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:31:49,693 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:31:49,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/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--phy--dp83640.ko-entry_point.cil.out.i [2022-11-03 03:31:49,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/data/136a78e19/4cfb062b68804b84b7c123ef1283cc9e/FLAGd20f31c81 [2022-11-03 03:31:50,582 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:31:50,583 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2022-11-03 03:31:50,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/data/136a78e19/4cfb062b68804b84b7c123ef1283cc9e/FLAGd20f31c81 [2022-11-03 03:31:51,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/data/136a78e19/4cfb062b68804b84b7c123ef1283cc9e [2022-11-03 03:31:51,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:31:51,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:31:51,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:31:51,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:31:51,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:31:51,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:51" (1/1) ... [2022-11-03 03:31:51,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f459b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:51, skipping insertion in model container [2022-11-03 03:31:51,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:51" (1/1) ... [2022-11-03 03:31:51,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:31:51,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:31:52,285 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_d0eb72dc-bfd9-4634-b65c-16618fdda381/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i[160997,161010] [2022-11-03 03:31:52,852 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-03 03:31:52,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:31:52,880 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:31:53,064 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_d0eb72dc-bfd9-4634-b65c-16618fdda381/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i[160997,161010] [2022-11-03 03:31:53,240 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-03 03:31:53,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:31:53,283 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:31:53,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53 WrapperNode [2022-11-03 03:31:53,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:31:53,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:31:53,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:31:53,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:31:53,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (1/1) ... [2022-11-03 03:31:53,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (1/1) ... [2022-11-03 03:31:53,475 INFO L138 Inliner]: procedures = 184, calls = 840, calls flagged for inlining = 74, calls inlined = 63, statements flattened = 2080 [2022-11-03 03:31:53,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:31:53,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:31:53,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:31:53,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:31:53,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (1/1) ... [2022-11-03 03:31:53,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (1/1) ... [2022-11-03 03:31:53,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (1/1) ... [2022-11-03 03:31:53,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (1/1) ... [2022-11-03 03:31:53,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (1/1) ... [2022-11-03 03:31:53,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (1/1) ... [2022-11-03 03:31:53,659 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (1/1) ... [2022-11-03 03:31:53,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (1/1) ... [2022-11-03 03:31:53,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:31:53,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:31:53,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:31:53,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:31:53,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (1/1) ... [2022-11-03 03:31:53,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:31:53,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:53,735 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:31:53,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:31:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure broadcast_write [2022-11-03 03:31:53,775 INFO L138 BoogieDeclarations]: Found implementation of procedure broadcast_write [2022-11-03 03:31:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 03:31:53,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 03:31:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure genphy_config_aneg [2022-11-03 03:31:53,776 INFO L138 BoogieDeclarations]: Found implementation of procedure genphy_config_aneg [2022-11-03 03:31:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 03:31:53,776 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 03:31:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_put [2022-11-03 03:31:53,777 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_put [2022-11-03 03:31:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:31:53,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:31:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:31:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-03 03:31:53,777 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-03 03:31:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure phy2txts [2022-11-03 03:31:53,778 INFO L138 BoogieDeclarations]: Found implementation of procedure phy2txts [2022-11-03 03:31:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-03 03:31:53,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-03 03:31:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ts_info [2022-11-03 03:31:53,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ts_info [2022-11-03 03:31:53,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:31:53,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:31:53,779 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-11-03 03:31:53,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-11-03 03:31:53,779 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_write [2022-11-03 03:31:53,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_write [2022-11-03 03:31:53,780 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_intr [2022-11-03 03:31:53,780 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_intr [2022-11-03 03:31:53,780 INFO L130 BoogieDeclarations]: Found specification of procedure tdr_write [2022-11-03 03:31:53,780 INFO L138 BoogieDeclarations]: Found implementation of procedure tdr_write [2022-11-03 03:31:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-03 03:31:53,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-03 03:31:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:31:53,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:31:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure exts_chan_to_edata [2022-11-03 03:31:53,782 INFO L138 BoogieDeclarations]: Found implementation of procedure exts_chan_to_edata [2022-11-03 03:31:53,782 INFO L130 BoogieDeclarations]: Found specification of procedure skb_complete_tx_timestamp [2022-11-03 03:31:53,782 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_complete_tx_timestamp [2022-11-03 03:31:53,782 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 03:31:53,782 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 03:31:53,782 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 03:31:53,783 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 03:31:53,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:31:53,783 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 03:31:53,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 03:31:53,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 03:31:53,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 03:31:53,785 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_rxtstamp [2022-11-03 03:31:53,785 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_rxtstamp [2022-11-03 03:31:53,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:31:53,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:31:53,787 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-11-03 03:31:53,787 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-11-03 03:31:53,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:31:53,787 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:31:53,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:31:53,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:31:53,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:31:53,788 INFO L130 BoogieDeclarations]: Found specification of procedure prune_rx_ts [2022-11-03 03:31:53,788 INFO L138 BoogieDeclarations]: Found implementation of procedure prune_rx_ts [2022-11-03 03:31:53,788 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:31:53,788 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:31:53,789 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 03:31:53,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 03:31:53,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:31:53,789 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_init [2022-11-03 03:31:53,789 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_init [2022-11-03 03:31:53,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:31:53,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:31:53,790 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:31:53,790 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:31:53,790 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 03:31:53,790 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2022-11-03 03:31:53,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2022-11-03 03:31:53,791 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-03 03:31:53,791 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-03 03:31:53,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:31:53,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:31:53,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-03 03:31:53,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-03 03:31:53,793 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 03:31:53,793 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 03:31:53,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:31:53,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:31:53,793 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:31:53,794 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:31:53,794 INFO L130 BoogieDeclarations]: Found specification of procedure enable_status_frames [2022-11-03 03:31:53,794 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_status_frames [2022-11-03 03:31:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_hwtstamp [2022-11-03 03:31:53,796 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_hwtstamp [2022-11-03 03:31:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 03:31:53,796 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 03:31:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-11-03 03:31:53,796 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-11-03 03:31:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 03:31:53,797 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 03:31:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:31:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:31:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-03 03:31:53,797 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-03 03:31:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 03:31:53,798 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 03:31:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_get [2022-11-03 03:31:53,798 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_get [2022-11-03 03:31:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ack_interrupt [2022-11-03 03:31:53,798 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ack_interrupt [2022-11-03 03:31:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure ext_read [2022-11-03 03:31:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_read [2022-11-03 03:31:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 03:31:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 03:31:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 03:31:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 03:31:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 03:31:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 03:31:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 03:31:53,805 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 03:31:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2022-11-03 03:31:53,811 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2022-11-03 03:31:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_txtstamp [2022-11-03 03:31:53,811 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_txtstamp [2022-11-03 03:31:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:31:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure enable_broadcast [2022-11-03 03:31:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_broadcast [2022-11-03 03:31:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:31:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:31:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 03:31:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 03:31:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:31:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:31:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timespec [2022-11-03 03:31:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timespec [2022-11-03 03:31:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure ext_write [2022-11-03 03:31:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_write [2022-11-03 03:31:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 03:31:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 03:31:54,448 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:31:54,463 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:31:55,018 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:31:56,969 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:31:57,416 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:31:57,416 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 03:31:57,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:57 BoogieIcfgContainer [2022-11-03 03:31:57,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:31:57,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:31:57,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:31:57,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:31:57,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:31:51" (1/3) ... [2022-11-03 03:31:57,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4129391b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:31:57, skipping insertion in model container [2022-11-03 03:31:57,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:53" (2/3) ... [2022-11-03 03:31:57,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4129391b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:31:57, skipping insertion in model container [2022-11-03 03:31:57,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:57" (3/3) ... [2022-11-03 03:31:57,429 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2022-11-03 03:31:57,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:31:57,453 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:31:57,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:31:57,537 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;@1114bd05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:31:57,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:31:57,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 637 states, 382 states have (on average 1.3429319371727748) internal successors, (513), 399 states have internal predecessors, (513), 193 states have call successors, (193), 61 states have call predecessors, (193), 60 states have return successors, (190), 189 states have call predecessors, (190), 190 states have call successors, (190) [2022-11-03 03:31:57,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 03:31:57,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:57,560 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:57,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:57,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:57,566 INFO L85 PathProgramCache]: Analyzing trace with hash -963672369, now seen corresponding path program 1 times [2022-11-03 03:31:57,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:57,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994468632] [2022-11-03 03:31:57,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:57,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:58,268 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 03:31:58,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:58,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994468632] [2022-11-03 03:31:58,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994468632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:58,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:58,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:31:58,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904053912] [2022-11-03 03:31:58,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:58,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:31:58,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:58,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:31:58,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:31:58,319 INFO L87 Difference]: Start difference. First operand has 637 states, 382 states have (on average 1.3429319371727748) internal successors, (513), 399 states have internal predecessors, (513), 193 states have call successors, (193), 61 states have call predecessors, (193), 60 states have return successors, (190), 189 states have call predecessors, (190), 190 states have call successors, (190) Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:31:59,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:59,683 INFO L93 Difference]: Finished difference Result 1896 states and 2694 transitions. [2022-11-03 03:31:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:31:59,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-11-03 03:31:59,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:59,717 INFO L225 Difference]: With dead ends: 1896 [2022-11-03 03:31:59,718 INFO L226 Difference]: Without dead ends: 1231 [2022-11-03 03:31:59,729 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 03:31:59,734 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 877 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:59,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 2695 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 03:31:59,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2022-11-03 03:31:59,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1227. [2022-11-03 03:31:59,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 739 states have (on average 1.3247631935047361) internal successors, (979), 763 states have internal predecessors, (979), 370 states have call successors, (370), 118 states have call predecessors, (370), 117 states have return successors, (377), 367 states have call predecessors, (377), 369 states have call successors, (377) [2022-11-03 03:31:59,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1726 transitions. [2022-11-03 03:31:59,949 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1726 transitions. Word has length 26 [2022-11-03 03:31:59,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:59,952 INFO L495 AbstractCegarLoop]: Abstraction has 1227 states and 1726 transitions. [2022-11-03 03:31:59,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:31:59,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1726 transitions. [2022-11-03 03:31:59,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-03 03:31:59,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:59,962 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 03:31:59,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:31:59,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:59,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:59,963 INFO L85 PathProgramCache]: Analyzing trace with hash 196908252, now seen corresponding path program 1 times [2022-11-03 03:31:59,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:59,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354247443] [2022-11-03 03:31:59,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:59,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 03:32:00,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:00,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354247443] [2022-11-03 03:32:00,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354247443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:00,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:00,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:32:00,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113924582] [2022-11-03 03:32:00,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:00,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:32:00,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:00,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:32:00,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:32:00,198 INFO L87 Difference]: Start difference. First operand 1227 states and 1726 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 03:32:00,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:00,996 INFO L93 Difference]: Finished difference Result 2525 states and 3542 transitions. [2022-11-03 03:32:00,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:32:00,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2022-11-03 03:32:00,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:01,008 INFO L225 Difference]: With dead ends: 2525 [2022-11-03 03:32:01,008 INFO L226 Difference]: Without dead ends: 1303 [2022-11-03 03:32:01,013 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 03:32:01,015 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 75 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:01,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1496 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 03:32:01,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2022-11-03 03:32:01,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1297. [2022-11-03 03:32:01,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 789 states have (on average 1.326996197718631) internal successors, (1047), 814 states have internal predecessors, (1047), 381 states have call successors, (381), 127 states have call predecessors, (381), 126 states have return successors, (388), 377 states have call predecessors, (388), 380 states have call successors, (388) [2022-11-03 03:32:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1816 transitions. [2022-11-03 03:32:01,104 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1816 transitions. Word has length 66 [2022-11-03 03:32:01,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:01,105 INFO L495 AbstractCegarLoop]: Abstraction has 1297 states and 1816 transitions. [2022-11-03 03:32:01,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 03:32:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1816 transitions. [2022-11-03 03:32:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-03 03:32:01,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:01,114 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:01,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:32:01,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:01,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:01,123 INFO L85 PathProgramCache]: Analyzing trace with hash 455341135, now seen corresponding path program 1 times [2022-11-03 03:32:01,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:01,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409613247] [2022-11-03 03:32:01,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:01,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:01,337 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:32:01,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:01,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409613247] [2022-11-03 03:32:01,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409613247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:01,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:01,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:32:01,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985647072] [2022-11-03 03:32:01,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:01,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:32:01,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:01,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:32:01,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:32:01,340 INFO L87 Difference]: Start difference. First operand 1297 states and 1816 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-03 03:32:02,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:02,528 INFO L93 Difference]: Finished difference Result 3509 states and 4882 transitions. [2022-11-03 03:32:02,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:32:02,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2022-11-03 03:32:02,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:02,540 INFO L225 Difference]: With dead ends: 3509 [2022-11-03 03:32:02,541 INFO L226 Difference]: Without dead ends: 2233 [2022-11-03 03:32:02,546 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 03:32:02,547 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 766 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:02,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 1526 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 03:32:02,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2022-11-03 03:32:02,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 2227. [2022-11-03 03:32:02,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1365 states have (on average 1.3047619047619048) internal successors, (1781), 1401 states have internal predecessors, (1781), 628 states have call successors, (628), 234 states have call predecessors, (628), 233 states have return successors, (638), 621 states have call predecessors, (638), 627 states have call successors, (638) [2022-11-03 03:32:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3047 transitions. [2022-11-03 03:32:02,662 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3047 transitions. Word has length 87 [2022-11-03 03:32:02,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:02,664 INFO L495 AbstractCegarLoop]: Abstraction has 2227 states and 3047 transitions. [2022-11-03 03:32:02,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-03 03:32:02,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3047 transitions. [2022-11-03 03:32:02,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-03 03:32:02,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:02,670 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:02,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:32:02,671 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:02,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:02,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1315915671, now seen corresponding path program 1 times [2022-11-03 03:32:02,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:02,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044636956] [2022-11-03 03:32:02,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:02,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:32:02,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:02,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044636956] [2022-11-03 03:32:02,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044636956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:02,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:02,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:32:02,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926432869] [2022-11-03 03:32:02,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:02,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:32:02,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:02,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:32:02,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:32:02,874 INFO L87 Difference]: Start difference. First operand 2227 states and 3047 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-03 03:32:03,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:03,756 INFO L93 Difference]: Finished difference Result 3373 states and 4626 transitions. [2022-11-03 03:32:03,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:32:03,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 87 [2022-11-03 03:32:03,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:03,768 INFO L225 Difference]: With dead ends: 3373 [2022-11-03 03:32:03,768 INFO L226 Difference]: Without dead ends: 2235 [2022-11-03 03:32:03,773 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 03:32:03,775 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 4 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:03,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1522 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 03:32:03,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2022-11-03 03:32:03,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2235. [2022-11-03 03:32:03,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 1371 states have (on average 1.3034281546316557) internal successors, (1787), 1409 states have internal predecessors, (1787), 628 states have call successors, (628), 234 states have call predecessors, (628), 235 states have return successors, (640), 621 states have call predecessors, (640), 627 states have call successors, (640) [2022-11-03 03:32:03,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 3055 transitions. [2022-11-03 03:32:03,886 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 3055 transitions. Word has length 87 [2022-11-03 03:32:03,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:03,887 INFO L495 AbstractCegarLoop]: Abstraction has 2235 states and 3055 transitions. [2022-11-03 03:32:03,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-03 03:32:03,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3055 transitions. [2022-11-03 03:32:03,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-03 03:32:03,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:03,892 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:03,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:32:03,893 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:03,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:03,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1331856405, now seen corresponding path program 1 times [2022-11-03 03:32:03,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:03,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120236460] [2022-11-03 03:32:03,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:03,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:04,403 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:32:04,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:04,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120236460] [2022-11-03 03:32:04,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120236460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:04,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:04,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:32:04,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876754927] [2022-11-03 03:32:04,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:04,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:32:04,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:04,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:32:04,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:32:04,406 INFO L87 Difference]: Start difference. First operand 2235 states and 3055 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-03 03:32:09,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:09,989 INFO L93 Difference]: Finished difference Result 4579 states and 6285 transitions. [2022-11-03 03:32:09,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:32:09,990 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 88 [2022-11-03 03:32:09,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:10,017 INFO L225 Difference]: With dead ends: 4579 [2022-11-03 03:32:10,017 INFO L226 Difference]: Without dead ends: 2365 [2022-11-03 03:32:10,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:32:10,026 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 1904 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 3617 mSolverCounterSat, 1422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 5039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1422 IncrementalHoareTripleChecker+Valid, 3617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:10,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 1797 Invalid, 5039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1422 Valid, 3617 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 03:32:10,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2022-11-03 03:32:10,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2329. [2022-11-03 03:32:10,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 1427 states have (on average 1.2985283812193413) internal successors, (1853), 1469 states have internal predecessors, (1853), 664 states have call successors, (664), 234 states have call predecessors, (664), 237 states have return successors, (677), 657 states have call predecessors, (677), 663 states have call successors, (677) [2022-11-03 03:32:10,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 3194 transitions. [2022-11-03 03:32:10,227 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 3194 transitions. Word has length 88 [2022-11-03 03:32:10,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:10,228 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 3194 transitions. [2022-11-03 03:32:10,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-03 03:32:10,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 3194 transitions. [2022-11-03 03:32:10,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-03 03:32:10,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:10,241 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-03 03:32:10,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:32:10,241 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:10,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:10,242 INFO L85 PathProgramCache]: Analyzing trace with hash -304839040, now seen corresponding path program 1 times [2022-11-03 03:32:10,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:10,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125403087] [2022-11-03 03:32:10,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:10,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:32:10,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:10,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125403087] [2022-11-03 03:32:10,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125403087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:10,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:10,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:32:10,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916039918] [2022-11-03 03:32:10,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:10,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:32:10,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:10,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:32:10,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:32:10,704 INFO L87 Difference]: Start difference. First operand 2329 states and 3194 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 03:32:11,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:11,881 INFO L93 Difference]: Finished difference Result 4663 states and 6433 transitions. [2022-11-03 03:32:11,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:32:11,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2022-11-03 03:32:11,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:11,897 INFO L225 Difference]: With dead ends: 4663 [2022-11-03 03:32:11,897 INFO L226 Difference]: Without dead ends: 2355 [2022-11-03 03:32:11,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:32:11,910 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 2 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3042 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:11,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3042 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 03:32:11,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2022-11-03 03:32:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 2345. [2022-11-03 03:32:12,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 1439 states have (on average 1.296038915913829) internal successors, (1865), 1481 states have internal predecessors, (1865), 664 states have call successors, (664), 234 states have call predecessors, (664), 241 states have return successors, (685), 661 states have call predecessors, (685), 663 states have call successors, (685) [2022-11-03 03:32:12,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 3214 transitions. [2022-11-03 03:32:12,057 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 3214 transitions. Word has length 110 [2022-11-03 03:32:12,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:12,058 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 3214 transitions. [2022-11-03 03:32:12,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 03:32:12,058 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 3214 transitions. [2022-11-03 03:32:12,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-03 03:32:12,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:12,064 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2022-11-03 03:32:12,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:32:12,065 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:12,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash -996284871, now seen corresponding path program 1 times [2022-11-03 03:32:12,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:12,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672591259] [2022-11-03 03:32:12,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:12,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:12,310 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 03:32:12,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:12,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672591259] [2022-11-03 03:32:12,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672591259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:12,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:12,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:32:12,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859742309] [2022-11-03 03:32:12,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:12,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:32:12,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:12,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:32:12,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:32:12,313 INFO L87 Difference]: Start difference. First operand 2345 states and 3214 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:32:12,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:12,904 INFO L93 Difference]: Finished difference Result 4669 states and 6398 transitions. [2022-11-03 03:32:12,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:32:12,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2022-11-03 03:32:12,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:12,923 INFO L225 Difference]: With dead ends: 4669 [2022-11-03 03:32:12,924 INFO L226 Difference]: Without dead ends: 2332 [2022-11-03 03:32:12,936 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 03:32:12,937 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 839 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:12,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 828 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 03:32:12,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2332 states. [2022-11-03 03:32:13,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2332 to 2332. [2022-11-03 03:32:13,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 1428 states have (on average 1.285014005602241) internal successors, (1835), 1470 states have internal predecessors, (1835), 662 states have call successors, (662), 234 states have call predecessors, (662), 241 states have return successors, (681), 659 states have call predecessors, (681), 661 states have call successors, (681) [2022-11-03 03:32:13,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3178 transitions. [2022-11-03 03:32:13,138 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3178 transitions. Word has length 124 [2022-11-03 03:32:13,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:13,140 INFO L495 AbstractCegarLoop]: Abstraction has 2332 states and 3178 transitions. [2022-11-03 03:32:13,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:32:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3178 transitions. [2022-11-03 03:32:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-03 03:32:13,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:13,147 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2022-11-03 03:32:13,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:32:13,147 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:13,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:13,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1835702306, now seen corresponding path program 1 times [2022-11-03 03:32:13,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:13,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925565078] [2022-11-03 03:32:13,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:13,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:13,983 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-03 03:32:13,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:13,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925565078] [2022-11-03 03:32:13,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925565078] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:32:13,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406331435] [2022-11-03 03:32:13,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:13,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:32:13,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:32:13,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:32:14,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:32:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:14,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 03:32:14,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:15,006 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:32:15,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-03 03:32:15,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406331435] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 03:32:15,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:32:15,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9, 10] total 24 [2022-11-03 03:32:15,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277748132] [2022-11-03 03:32:15,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:15,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 03:32:15,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:15,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 03:32:15,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2022-11-03 03:32:15,931 INFO L87 Difference]: Start difference. First operand 2332 states and 3178 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2022-11-03 03:32:23,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:23,632 INFO L93 Difference]: Finished difference Result 5424 states and 7546 transitions. [2022-11-03 03:32:23,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 03:32:23,633 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 130 [2022-11-03 03:32:23,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:23,659 INFO L225 Difference]: With dead ends: 5424 [2022-11-03 03:32:23,659 INFO L226 Difference]: Without dead ends: 4178 [2022-11-03 03:32:23,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2022-11-03 03:32:23,668 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 2135 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 5026 mSolverCounterSat, 1524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2260 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 6550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1524 IncrementalHoareTripleChecker+Valid, 5026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:23,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2260 Valid, 3120 Invalid, 6550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1524 Valid, 5026 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-03 03:32:23,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2022-11-03 03:32:24,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 3551. [2022-11-03 03:32:24,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 2170 states have (on average 1.2847926267281107) internal successors, (2788), 2241 states have internal predecessors, (2788), 1010 states have call successors, (1010), 347 states have call predecessors, (1010), 370 states have return successors, (1066), 1011 states have call predecessors, (1066), 1009 states have call successors, (1066) [2022-11-03 03:32:24,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 4864 transitions. [2022-11-03 03:32:24,048 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 4864 transitions. Word has length 130 [2022-11-03 03:32:24,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:24,049 INFO L495 AbstractCegarLoop]: Abstraction has 3551 states and 4864 transitions. [2022-11-03 03:32:24,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2022-11-03 03:32:24,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 4864 transitions. [2022-11-03 03:32:24,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-03 03:32:24,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:24,057 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2022-11-03 03:32:24,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:24,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-03 03:32:24,284 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:24,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1790854796, now seen corresponding path program 1 times [2022-11-03 03:32:24,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:24,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188826832] [2022-11-03 03:32:24,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:24,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:24,585 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 03:32:24,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:24,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188826832] [2022-11-03 03:32:24,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188826832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:24,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:24,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:32:24,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449955628] [2022-11-03 03:32:24,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:24,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:32:24,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:24,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:32:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:32:24,588 INFO L87 Difference]: Start difference. First operand 3551 states and 4864 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 03:32:25,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:25,727 INFO L93 Difference]: Finished difference Result 6038 states and 8309 transitions. [2022-11-03 03:32:25,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:32:25,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2022-11-03 03:32:25,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:25,745 INFO L225 Difference]: With dead ends: 6038 [2022-11-03 03:32:25,745 INFO L226 Difference]: Without dead ends: 3579 [2022-11-03 03:32:25,753 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 03:32:25,756 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 9 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:25,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2281 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 03:32:25,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3579 states. [2022-11-03 03:32:25,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3579 to 3561. [2022-11-03 03:32:26,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3561 states, 2180 states have (on average 1.2862385321100918) internal successors, (2804), 2251 states have internal predecessors, (2804), 1010 states have call successors, (1010), 347 states have call predecessors, (1010), 370 states have return successors, (1066), 1011 states have call predecessors, (1066), 1009 states have call successors, (1066) [2022-11-03 03:32:26,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 4880 transitions. [2022-11-03 03:32:26,017 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 4880 transitions. Word has length 131 [2022-11-03 03:32:26,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:26,018 INFO L495 AbstractCegarLoop]: Abstraction has 3561 states and 4880 transitions. [2022-11-03 03:32:26,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 03:32:26,018 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 4880 transitions. [2022-11-03 03:32:26,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-03 03:32:26,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:26,025 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2022-11-03 03:32:26,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 03:32:26,026 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:26,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:26,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1991427259, now seen corresponding path program 1 times [2022-11-03 03:32:26,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:26,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493603071] [2022-11-03 03:32:26,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:26,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:33,681 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 13 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:32:33,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:33,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493603071] [2022-11-03 03:32:33,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493603071] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:32:33,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501398223] [2022-11-03 03:32:33,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:33,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:32:33,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:32:33,684 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:32:33,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0eb72dc-bfd9-4634-b65c-16618fdda381/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:32:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:34,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 1377 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-03 03:32:34,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-03 03:32:34,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:35,981 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-03 03:32:35,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501398223] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:32:35,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [579396387] [2022-11-03 03:32:36,006 INFO L159 IcfgInterpreter]: Started Sifa with 106 locations of interest [2022-11-03 03:32:36,006 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:32:36,011 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:32:36,017 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:32:36,017 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:32:36,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 456 treesize of output 370 [2022-11-03 03:32:36,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 462 treesize of output 376 [2022-11-03 03:32:37,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-03 03:32:37,797 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 03:32:37,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 03:32:38,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 42 select indices, 42 select index equivalence classes, 137 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 127 [2022-11-03 03:32:39,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 42 select indices, 42 select index equivalence classes, 137 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 127 [2022-11-03 03:32:42,008 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:32:42,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:32:42,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:32:42,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:32:42,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:32:42,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:32:48,644 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 03:32:48,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-03 03:32:48,726 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 03:32:48,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-11-03 03:32:48,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-03 03:32:48,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-03 03:32:48,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-03 03:32:49,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 03:32:49,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:49,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:49,251 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:32:49,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2022-11-03 03:32:49,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 03:32:49,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:49,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:49,398 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:32:49,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 122 treesize of output 108 [2022-11-03 03:32:49,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:49,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:49,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:49,591 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:32:49,592 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 110 treesize of output 160 [2022-11-03 03:32:55,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:55,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:55,104 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:32:55,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2022-11-03 03:32:55,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 03:32:55,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:55,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:55,225 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:32:55,225 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 122 treesize of output 108 [2022-11-03 03:32:55,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:55,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:55,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:55,454 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:32:55,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 110 treesize of output 160 [2022-11-03 03:32:59,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 03:33:00,641 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 50805 conjuctions. This might take some time...